Speaking as a factory trained honda tech, the pair system only operates at closed throttle so it has no effect on acceleration. It only injects air into the exhaust side during closed throttle deceleration for emissions purposes
I once did a similar mod to a '91 Ducati 851. It had its airbox under the tank like the VFR and also had a removable lid. I purchased a metal perimeter frame from Ferracci that held the filter in place and had "hooks" that the retainer clips would attach to. The engine was now able to get air from the area of the entire airbox instead of just two small snorkels. This simple mod alone gave 5 additional horsepower which was nice but the induction sound was incredible!!! I will be doing the same to my VFR.
FYI, these mods do work on the 8th gen VFR. I just did them on my 2014. The fueling felt very good on it until I put an aftermarket exhaust on it ( coffman ). With the aftermarket exhaust there was a definite flat spot in the torque curve from about 5,000 rpm's to 6,800 rpm's. Also felt a little jerky at low rpm's. Now it runs better than ever! One note: I didn't delete the snorkel, I trimmed off the part that is inside the box, but left the exterior part of it as is, with it removed I could look right into the air box at the filter, I didn't want to risk water getting in there from rain or when washing the bike.
Did this to my 2015 today. Couldn't find much info online about if the 8th gen bikes needed this mod or not so I tried it out and omg, it's like a brand new bike. So much smoother at low rpm and shifts smoother too. I love it! I didn't do the snorkel though, I figure it probably helps keep water out and I get caught in the rain sometimes when I go long distance.
Rain water can't get in, pressure washing can, so beware people, also vermin love to make a nests/food stores in air-boxes ... waste of time pulling the snorkel, it does nothing for power or economy on any Honda, probly even all bikes, junk the Flappers system, did nothing anyway only quieten the motors induction down to pass stupid noise test at low rpm's. Install chicken coup wire mesh or similar small grid wire mesh over snorkel end & over flapper inlet, it keeps mice out, we rarely see this mice issue here in the UK, but it's been documented on many bikes. If you store your bike outside under a cover/lean too or an unsealed shed/garage, you defo need to chicken wire the air intakes, can't do much about mice/rats chewing thru wiring, but they do love to munch on electrical cables for some weird reason.
This is the one thing I love about my pc800, you can lug the engine and still get really smooth power, I was going through stop and go traffic earlier today and the engine was running at around 1000 to 2000 RPM and I was able to keep it up right
Thanks for the tips and tutorial I just did this to my 09 VFR and big improvements. Most noticeable smoother idle, previously between 2k and 3k it was unusable now its much improved, and makes a much better intake sound :).
honestly ive owned mine 3 years and have completely neglected the air filter, runs great. After seeing this vid im definitely gonna check mine for all that junk to clean out,.
I made the mods after watching your video. Amazing difference when ridind at low speed, and when the Vtec transition kicks, is really, really smooth! Thanks again for this video. I've gave this info on my vfr group in Portugal, and a few were really interested. For a good reason. No nests in my filter, though! ahaha
I appreciate all the time and trouble you went through to make this video but I try to imagine what those brilliant engineers at Honda would say if they saw your video. Gotta give 'em respect, my friend. They're using those big brains of theirs to create the best motorcycle they can. I own all kinds of bikes from Harleys to Hondas (and yes, BMWs and Ducatis, too) and I've spent thousands on flowed heads, ported and polished heads, larger valves with special 3-angle cuts, tiny little side-thrust bearings on rocker arm shafts, swiss-cheese flywheels, Delorto pumper carbs, dual plug heads, blueprinting, balancing, not to mention carbs, air cleaner mods and exhaust mods and the only thing I succeeded with was making the bike louder, not better! Leave 'em stock and let 'em rock.
You do realize that every single race bike that honda makes doesn't have a flapper, pair, or snorkel. You want to know why? Because the reason why they have them is to pass emissions and noise regulations... that's it. If a honda engineer saw my video then he would agree that what i'm doing is a good thing for the bike. I even talked to my dyno tuner when I got my bike tuned and he recommended that I do that.
Not buyin' it, HeroRR. You said "every single race bike that Honda makes doesn't have a flapper, pair or snorkel" but there are so many differences between a race bike that Honda makes and the street bikes they make that you are comparing apples with kumquats. Leave it stock and let it rock.
I did an air box modification on my 86 VFR 750 with a 2 inch hole saw, re jetted the carbs, and pinched a 4 into 1 Kerker pipe on it. It was loud and ran great. Lol. I wish I still had that bike.
I appreciate you taking the time to upload this video. I don't know about anyone else, but on my 07, this turned it into a totally different bike. Idles way smoother, and first gear is actually usable and isn't all jerky like it was before. It sounds better too. I feel my MPG is going to go down, because I'm going to draw out thosee gears longer to hear that growl!
Good video mate... I did the flapper and snorkel and enjoyed the sound improvement and it was definitely smoother.. I also blocked the pair but didn’t pull the plug and it idled rough and needed the idle adjusted
I bought me a VFR from 2002 (my first bike😅) and although i am a beginner i just felt something's off on the low end but i couldn't say what it was. I will do these things this week and i'll come back with some feedback. Until then,thanks! 😁
@rocknexus5749 yeah,but only had to remove the snorkel,the last owner(i guess) did the flapper mod and deleted the pair valve. To be honest,i think that the "power boost" sits in the stupid snorkel and the flapper. I love those pops on deceleration and i connected the pair valve back on(i noticed a pretty decent difference in fuel consumption with the pair valve connected since i still have the cat. convert on the bike,she drinks less 😅). About that power gap that you feel around 4500 rpm,it's mostly gone,bike pulls better down low,but i still feel it every now and then,not big of a deal. Overall,i am very pleased with it. Go for a ride with it stock,get back home,remove the flapper and the snorkel and go back on the road and you'll see it for yourself 😁. Ride safe,man! 🫡
Great video! I have a rat's nests under my seat after every winter. Next time I'll store my bike in one of those big sealable plastic bags... that should do the trick
5th Gen 1998-2000 Flapper removal "Yes" ... Pair valve system removal "Yes" ... Snorkel removal "No" it'll do nothing but increase induction roar, it'll actually increase fuel consumption a little, engines don't like warm air, cold air snorkel inlet is there for a reason, all engines run better on cold air. Late 5th Gen 2000-2001 & all 6th Gen variants (V-tech) motor, won't benefit from "Pair system removal" unless you flash the ECU with a modified map, fit an after market exhaust or slip on can & you'll that re-mapping with dyno runs, or you'l get turn a great bike into a jerko-matic badly. Personally i've found the early 5th Gen to be far more responsive to "Flapper removal" & exhaust changes, they do run better with the decibel killer removed & noticeably smoother with starter valves set correctly. Personally, I don't like the V-tech motor WTF were Honda thinking? massive re-engineering for little to no gain over the glorious 5th Gen gear driven motor, cost saving exercise is my guess, the 5th Gen motor was over engineered from the start, RC45 derived motor, yes "RC45" crankcases were used too, less exotic materials used on internal motor components, but basically a detuned RC45 motor is what we got... (Thankyou mother Honda).
Badass! You are a life saver man. I am about a week behind on your mods. Yes I WOT my VFR and she does NOT scare me like my GSXR 1000. THe VFR is real tame...I need just a bit more HP. This might help! Thanks! ROFL...WTF nest!
These mods smooth out the power and make it a little better, but don't think it will completely turn the bike around, the VFR800 will never have the pull of a 1000, no matter what kind of mods you do.
No, they dont free up or give you more power. Many say that it does nothing to help. I did mine and am glad I did so since it was a lot of garbage under the tank. But, my bike does not act like your erratic description. Then again. I dont have nor dont want VTEC. I am happier to have no oxygen sensor and no gimmick Vtec. By the way the pair valve is not stupid, its emissions. lol
HEROrr hi, so I did one at the time. took it for a ride, did another, and so forth. first thing was the pair valve, I disconnected it and wow, the bike became sooo smooth. cornering and slow speed is now much easier. next was the flapper, not so much difference, but it pulls smoothly up till vtec and the kick is not so abrupt anymore. last came the snorkel, I think its mostly snarl and growl that was raised a bit, but I like it. not super noisy, just a bit more low end to it 😊 what a lovely new bike I got from doing this 😊 cheers
Ok Finally got around to do the mods ..and if the mods did not make a sizable difference i would have gone back because i like my shit stock BUT the difference was very noticeable especially going onto a highway where you want that smooth immediate roll on power also, city slow riding is also much better !!! The mods are staying !! THX ... :)
Hi, thanks, although I have my doubts, in flapper I think you should cover it, the metal hose that the sale of round metal cap, plug with a plug and the cuff that goes in it too
2 hours is definitely not enough time fro the K&N filter to dry, you just sealed the water in with the oil, so you have extended the drying time exponentially. That bike has been well looked after.
I've Tried all 3 mods on my 2002. Love the Intake sound, she really growls... but / Shrug... not sure if it really changed much... Got rid of the dead spot at about 5k rpms... But Not sure if there was any HP or Torque gain... Put it all back to stock until I sell it, or decide to keep it and sink another thousand into it with a delkevic Full exhaust and Power Commander V.
I've heard it adds like 1-2 HP on the bottom end, the main thing is really did for me was just smooth everything out, Power is nice, but smoothness is why I bought the bike in the first place.
I just did these mods and put a Delkevic system on, fucking awesome! Forgot to do the Pair mod tho.. But the snorkel, I just took the hose and folded it double and put a ziptie on it - the hose is still on the snorkel, works like a charm! Your tips are amazing dude. Any mirror mods soon? Thinking about putting Bar-ends on mine.. Got horrible mirrors right now.
I did these.... After I undid them again my bike had way more torque and mid range. If anything - I would say all this does is change the fuel air mixture and leans out the bike.
So overall is the pair, snorkel and flapper mod a good idea.. after riding the bike like this for awhile or what do you think after awhile? Thanks guys
I did all 3 mods. But reverted PAIR mod, here is my experience with all mods. First day - I did Snorkel and Flapper mods, VFR was louder than before and smoother. Second day - I did PAIR valve mod also, VFR became less louder than first day, still same smoothness as first day. But I got cold start issue, felt like engine was not getting enough fuel and air when cold. Ran fine after warm-up. Then while doing r&d over PAIR valve, I watched this video th-cam.com/video/_xMykbzJWiQ/w-d-xo.html. Video says PAIR valve is connected with exhaust, but it's connected with all cylinders also, and helps in exhaust stroke in expelling spent air-fuel mixture through the exhaust valve. And PAIR valve is involved in lower RPMs. Third day - I reconnected PAIR valve system, VFR became louder as first day. As per me I liked snorkel and flapper mod. As bike feels more louder hence feels more powerful and enjoyable.
Or, you could get a pre-VTEC vfr, I had a 99 model a good while back and it was nice and smooth, after i got it i kept bouncing it off the rev limiter for the first couple of weeks because it was so quiet and the power delivery was so linear.
..........did all this and now I’ve got a smoother idle.....1, do your maint. 2, fill up with 92+ octane......and don’t piss and moan because it’s 40cents more.....I get 36+mpg on this bike stock.
+skyeric875 this winter I'm going to do my vfr's plugs. Luckily they are very easy. Just make sure you hand thread them in before tightening them down with the ratchet and be very careful not to over tighten!
The front spark plugs are under the oil cooler in front. Remove that and you have access to it. Rear plugs are just under the tank. Prop up the tank on the front while leaving bolts in hinged rear. Then just pull them out. Simple job.
HEROrr have you done the fuel evap canister delete. I think I'm going to on my 07 vfr800 but was just wondering if anybody has done it or had a video of it being done. I have read it saves close to 4 pounds of weight off of it.
Before making any mods, ask yourself - "am I smarter than a Honda Engineer"."am I smarter than Honda's entire engineering department"? I think not. Unless you're competitively racing the bike, keep it stock and only use OEM. I say this with 45+ years motorcycling experience, both street and racing.
If Honda's engineers didn't have to abide by noise regulations then there would be no flapper, 100%. There's a reason why their GP bikes don't have PAIR systems or snorkels..
It feels like I never have to adjust the chain on mine. Should the bottom of the chain touch the rubber runner as when I tightened up it felt too tight. Its hard to gauge the 1 inch mark as the chain touches the runner. Any advice would be great. Thanks
@HeroRR. Hello. In process of buying a 2002 VFR and the jerky throttle was one of the things that put me off the first (and only) one i looked at so far. Still getting one tho but that`s to be expected and this is the fix? Great. Other was "ticking"/rattling when cold. I assumed it was the valves as it`s approaching 30.000 miles. To be expected or walk away? Or not to worry but expect a valve adjustment summer 2020?
Hey man! Thanks for doing these vids, they're hella helpful! :) Quick question: When lifting up the tank, where exactly is the pivot-point? Is it okay if the tank is still almost full, or could the pivot-point be too weak to hold the weight? Thanks in advance, and ride safe, man!
I just traded my 05 z750 for a 02 vfr800, the chap that owned it before me hasn't done any of these to it, are they really needed, necessary, or make a difference?
PAIR adds clean air at complete closed throttle to burn hydrocarbons that aren't being consumed through active open throttle temperatures. PAIR has nothing to do with active drive performance. Removing snorkel and disabling flapper merely robs you of mid-range torque by reducing air pressure in the air intake and flattens out (diminishes) the power curve. You have a more linear power but you are effectively reducing power to make it less responsive. I've never met anyone who wanted less power and less responsiveness in a bike like this. Trust Honda engineers who have been building this thing for DECADES, not internet idealogues.
If it removes the jerkyness at low revs then im willing to lose some torque. It makes driving in cities really awful and I happen to live in one. If I cant find a way to fix it, the bike isnt worth having to me and im gonna sell it.
....and wrong. reduces the vtec transition, removes a flat spot after VTEC kicks in. PC5 results showed increased power after mods. With a custom tune..much more power and better power curve. Add K&N filter and gutted exhasut and good to go. 1st gen & 6th gen owner-
Turned off PAIR on my Ninja 650 and i think there was a slight improvement in torque and she was a little more settled around idle (I've gotta have a clean throttle response at low revs)..slight improvement, easy to turnoff, no noticable change in fuel consumption. I do question the motivation for PAIRS more for immisions than rider satisfaction..wouldnt be surprised if other makes/models fair better but onky a little i'd say.
My vrf 800.. 2002.. Has a bad low end specially when it's hot but if I'm doing like. 30 mph in say 3rd gear it kind of chudders like it needs more revs for a smother ride is this common..
Yeah 42max, not whats best. If you wanna push the courners hard u need low pressure 28f 35r. Its low tyre pressure in racing not high. High only helps excelleration tiny bit but greatly reduces tyre/road contact so cant courner as fast or break as short
Dude. All that work and you ended up getting the most benefit from vacuuming the garbage out of the airbox.
Speaking as a factory trained honda tech, the pair system only operates at closed throttle so it has no effect on acceleration. It only injects air into the exhaust side during closed throttle deceleration for emissions purposes
I once did a similar mod to a '91 Ducati 851. It had its airbox under the tank like the VFR and also had a removable lid. I purchased a metal perimeter frame from Ferracci that held the filter in place and had "hooks" that the retainer clips would attach to. The engine was now able to get air from the area of the entire airbox instead of just two small snorkels. This simple mod alone gave 5 additional horsepower which was nice but the induction sound was incredible!!! I will be doing the same to my VFR.
FYI, these mods do work on the 8th gen VFR. I just did them on my 2014. The fueling felt very good on it until I put an aftermarket exhaust on it ( coffman ). With the aftermarket exhaust there was a definite flat spot in the torque curve from about 5,000 rpm's to 6,800 rpm's. Also felt a little jerky at low rpm's. Now it runs better than ever! One note: I didn't delete the snorkel, I trimmed off the part that is inside the box, but left the exterior part of it as is, with it removed I could look right into the air box at the filter, I didn't want to risk water getting in there from rain or when washing the bike.
Thank you for info, i own 8G too, so im going to do that
@@Jirkator2000 How did it go?
Done all these mods to my 2001 VFR800.After a short period of no difference,I've put it back to it's original configurance.
Did this to my 2015 today. Couldn't find much info online about if the 8th gen bikes needed this mod or not so I tried it out and omg, it's like a brand new bike. So much smoother at low rpm and shifts smoother too. I love it! I didn't do the snorkel though, I figure it probably helps keep water out and I get caught in the rain sometimes when I go long distance.
Rain water can't get in, pressure washing can, so beware people, also vermin love to make a nests/food stores in air-boxes ... waste of time pulling the snorkel, it does nothing for power or economy on any Honda, probly even all bikes, junk the Flappers system, did nothing anyway only quieten the motors induction down to pass stupid noise test at low rpm's.
Install chicken coup wire mesh or similar small grid wire mesh over snorkel end & over flapper inlet, it keeps mice out, we rarely see this mice issue here in the UK, but it's been documented on many bikes.
If you store your bike outside under a cover/lean too or an unsealed shed/garage, you defo need to chicken wire the air intakes, can't do much about mice/rats chewing thru wiring, but they do love to munch on electrical cables for some weird reason.
@@mickeymouse4897 great info, thanks
Just completed all the of these mods today on my 2008 and I’m glad I did. Really helps the low end out! Thank you for the great videos!
This is the one thing I love about my pc800, you can lug the engine and still get really smooth power, I was going through stop and go traffic earlier today and the engine was running at around 1000 to 2000 RPM and I was able to keep it up right
Thanks for the tips and tutorial I just did this to my 09 VFR and big improvements. Most noticeable smoother idle, previously between 2k and 3k it was unusable now its much improved, and makes a much better intake sound :).
Mine is currently unusable from 2-4k RPM. I'll be trying this out. Thanks.
You should also block the vaccum line you took off the flapper actuator as it will be a vacuum leak and let in unfiltered air.
+maxiboyfm3a oh really? I didn't know that. I will put a screw on it. Thanks
@@HeroRR
Please do an edit in the video to explain the blocking to as it is many people using this as reference.
Pro tip: the chain adjusting wrench is also used to keep the tank lifted 😉
thank u! love tips like that
honestly ive owned mine 3 years and have completely neglected the air filter, runs great. After seeing this vid im definitely gonna check mine for all that junk to clean out,.
I made the mods after watching your video.
Amazing difference when ridind at low speed, and when the Vtec transition kicks, is really, really smooth!
Thanks again for this video. I've gave this info on my vfr group in Portugal, and a few were really interested. For a good reason.
No nests in my filter, though! ahaha
I appreciate all the time and trouble you went through to make this video but I try to imagine what those brilliant engineers at Honda would say if they saw your video. Gotta give 'em respect, my friend. They're using those big brains of theirs to create the best motorcycle they can. I own all kinds of bikes from Harleys to Hondas (and yes, BMWs and Ducatis, too) and I've spent thousands on flowed heads, ported and polished heads, larger valves with special 3-angle cuts, tiny little side-thrust bearings on rocker arm shafts, swiss-cheese flywheels, Delorto pumper carbs, dual plug heads, blueprinting, balancing, not to mention carbs, air cleaner mods and exhaust mods and the only thing I succeeded with was making the bike louder, not better! Leave 'em stock and let 'em rock.
You do realize that every single race bike that honda makes doesn't have a flapper, pair, or snorkel. You want to know why? Because the reason why they have them is to pass emissions and noise regulations... that's it. If a honda engineer saw my video then he would agree that what i'm doing is a good thing for the bike. I even talked to my dyno tuner when I got my bike tuned and he recommended that I do that.
Not buyin' it, HeroRR. You said "every single race bike that Honda makes doesn't have a flapper, pair or snorkel" but there are so many differences between a race bike that Honda makes and the street bikes they make that you are comparing apples with kumquats. Leave it stock and let it rock.
I did an air box modification on my 86 VFR 750 with a 2 inch hole saw, re jetted the carbs, and pinched a 4 into 1 Kerker pipe on it. It was loud and ran great. Lol. I wish I still had that bike.
Thanks for uploading! Disabled the flapper only and I am much happier with the performance on my 08VFR
"noise regulations and emissions regulations and all that other bullshit"
got a like from me!
I appreciate you taking the time to upload this video. I don't know about anyone else, but on my 07, this turned it into a totally different bike. Idles way smoother, and first gear is actually usable and isn't all jerky like it was before. It sounds better too. I feel my MPG is going to go down, because I'm going to draw out thosee gears longer to hear that growl!
Isn't it 36psi front and 42 rear?
Yip! ^..^
yes m8 42 psi in back 36 in front as per manual
Yessir
Rat nest removal gives you the free horsepower!
I totally had the exact same issue with a rodent of some sort making a nest in my intake...lol....teeth marks on everything
For smooth ride don't forget to adjust throttle cable. It will take few minutes and make big difference.
Good video mate... I did the flapper and snorkel and enjoyed the sound improvement and it was definitely smoother.. I also blocked the pair but didn’t pull the plug and it idled rough and needed the idle adjusted
Brother, I just did all these mods to my 2004 VFR800 earlier today and found the exact same thing in my airbox 😂😂
I bought me a VFR from 2002 (my first bike😅) and although i am a beginner i just felt something's off on the low end but i couldn't say what it was.
I will do these things this week and i'll come back with some feedback.
Until then,thanks! 😁
Did you end up doing them?
Curious to see if it does anything
Did you end up doing them?
Curious to see if it does anything
@rocknexus5749 yeah,but only had to remove the snorkel,the last owner(i guess) did the flapper mod and deleted the pair valve.
To be honest,i think that the "power boost" sits in the stupid snorkel and the flapper. I love those pops on deceleration and i connected the pair valve back on(i noticed a pretty decent difference in fuel consumption with the pair valve connected since i still have the cat. convert on the bike,she drinks less 😅).
About that power gap that you feel around 4500 rpm,it's mostly gone,bike pulls better down low,but i still feel it every now and then,not big of a deal.
Overall,i am very pleased with it.
Go for a ride with it stock,get back home,remove the flapper and the snorkel and go back on the road and you'll see it for yourself 😁.
Ride safe,man! 🫡
It’s satisfying because you discovered a problem and easily corrected it .
You saved my life! I love my "new" vfr. Sooooo much better than before. Thanks bro🙌🏼
K, so I just did the flapper on my bike. That is what made it sooooo much smoother.
Lol, that "2 finger" line was priceless 🤪😁
Big difference, no more snorkel or flapper. Awesome
Great video! I have a rat's nests under my seat after every winter. Next time I'll store my bike in one of those big sealable plastic bags... that should do the trick
Back from my test ride.
Wow much smoother ride and a nicer deep roarrrr.
great mod . i also completely tore out the flapper and removed the metal vacuum mechanism on the top of the air box . it twists out .
New plugs and air filter made more of a difference to mine.
5th Gen 1998-2000 Flapper removal "Yes" ... Pair valve system removal "Yes" ... Snorkel removal "No" it'll do nothing but increase induction roar, it'll actually increase fuel consumption a little, engines don't like warm air, cold air snorkel inlet is there for a reason, all engines run better on cold air.
Late 5th Gen 2000-2001 & all 6th Gen variants (V-tech) motor, won't benefit from "Pair system removal" unless you flash the ECU with a modified map, fit an after market exhaust or slip on can & you'll that re-mapping with dyno runs, or you'l get turn a great bike into a jerko-matic badly.
Personally i've found the early 5th Gen to be far more responsive to "Flapper removal" & exhaust changes, they do run better with the decibel killer removed & noticeably smoother with starter valves set correctly.
Personally, I don't like the V-tech motor WTF were Honda thinking? massive re-engineering for little to no gain over the glorious 5th Gen gear driven motor, cost saving exercise is my guess, the 5th Gen motor was over engineered from the start, RC45 derived motor, yes "RC45" crankcases were used too, less exotic materials used on internal motor components, but basically a detuned RC45 motor is what we got... (Thankyou mother Honda).
Badass! You are a life saver man. I am about a week behind on your mods. Yes I WOT my VFR and she does NOT scare me like my GSXR 1000. THe VFR is real tame...I need just a bit more HP. This might help! Thanks! ROFL...WTF nest!
These mods smooth out the power and make it a little better, but don't think it will completely turn the bike around, the VFR800 will never have the pull of a 1000, no matter what kind of mods you do.
No, they dont free up or give you more power. Many say that it does nothing to help. I did mine and am glad I did so since it was a lot of garbage under the tank. But, my bike does not act like your erratic description. Then again. I dont have nor dont want VTEC. I am happier to have no oxygen sensor and no gimmick Vtec. By the way the pair valve is not stupid, its emissions. lol
@@GTARockman gimmick? Research the thing ffs
Nice vid! Probably a good idea to plug the vac line.
great vid - I look forward to the test ride as I am really close to deciding on trying these mods on my vfr vtec 😊
Thanks! Spoiler alert: Try them! It's super easy to do and completely reversible. Also I think you'll be pleased with the results :)
HEROrr hi, so I did one at the time. took it for a ride, did another, and so forth.
first thing was the pair valve, I disconnected it and wow, the bike became sooo smooth. cornering and slow speed is now much easier.
next was the flapper, not so much difference, but it pulls smoothly up till vtec and the kick is not so abrupt anymore.
last came the snorkel, I think its mostly snarl and growl that was raised a bit, but I like it. not super noisy, just a bit more low end to it 😊
what a lovely new bike I got from doing this 😊
cheers
Mods done thanks to this 😀 fortunately no leaves in my air box! Thanks!
I understand flapper and snorkel issues but why do you plug and disconnect the pair valve system? what's the advantage? thanks
@5:40 the previous owner was clearly an animal lover keeping those gerbils in his air box..
tedtheturbot 😂😂😂
Just did the mods. Now going for the test ride!
And, what effect is?
@@vavig3749 Smoother ride. and a way better sound.
Ok Finally got around to do the mods ..and if the mods did not make a sizable difference i would have gone back because i like my shit stock BUT the difference was very noticeable especially going onto a highway where you want that smooth immediate roll on power also, city slow riding is also much better !!! The mods are staying !! THX ... :)
I put a golf tee in mine.
Hi, thanks, although I have my doubts, in flapper I think you should cover it, the metal hose that the sale of round metal cap, plug with a plug and the cuff that goes in it too
2 hours is definitely not enough time fro the K&N filter to dry, you just sealed the water in with the oil, so you have extended the drying time exponentially. That bike has been well looked after.
good vfr video I would add some more air to the tires though 36`38 for the street
When a vacuum line is removed, shouldn’t it be capped if so that a vacuum leak isn’t created that could throw off the fuel,mixture?
I've Tried all 3 mods on my 2002. Love the Intake sound, she really growls... but / Shrug... not sure if it really changed much... Got rid of the dead spot at about 5k rpms... But Not sure if there was any HP or Torque gain... Put it all back to stock until I sell it, or decide to keep it and sink another thousand into it with a delkevic Full exhaust and Power Commander V.
I've heard it adds like 1-2 HP on the bottom end, the main thing is really did for me was just smooth everything out, Power is nice, but smoothness is why I bought the bike in the first place.
I just did these mods and put a Delkevic system on, fucking awesome!
Forgot to do the Pair mod tho..
But the snorkel, I just took the hose and folded it double and put a ziptie on it - the hose is still on the snorkel, works like a charm!
Your tips are amazing dude. Any mirror mods soon? Thinking about putting Bar-ends on mine.. Got horrible mirrors right now.
I did these.... After I undid them again my bike had way more torque and mid range. If anything - I would say all this does is change the fuel air mixture and leans out the bike.
You can also just pop the leg out of the flap and leave the vacuum connected, saves having to block it off
So overall is the pair, snorkel and flapper mod a good idea.. after riding the bike like this for awhile or what do you think after awhile? Thanks guys
Hero, about to do this, FYI you can "spin out" the flapper valve. I'm going to do that to remove about a pound from the bike :).
I love my bike again! Thanks.
Holy FUCK!!!!!!!!!!! at 4.30m my balls shrunk to the size of two raisons and i sprayed my Nescafe all over the lounge. _ SUBSCRIBED!!!!!!!
I did all 3 mods. But reverted PAIR mod, here is my experience with all mods.
First day - I did Snorkel and Flapper mods, VFR was louder than before and smoother.
Second day - I did PAIR valve mod also, VFR became less louder than first day, still same smoothness as first day. But I got cold start issue, felt like engine was not getting enough fuel and air when cold. Ran fine after warm-up. Then while doing r&d over PAIR valve, I watched this video th-cam.com/video/_xMykbzJWiQ/w-d-xo.html. Video says PAIR valve is connected with exhaust, but it's connected with all cylinders also, and helps in exhaust stroke in expelling spent air-fuel mixture through the exhaust valve. And PAIR valve is involved in lower RPMs.
Third day - I reconnected PAIR valve system, VFR became louder as first day. As per me I liked snorkel and flapper mod. As bike feels more louder hence feels more powerful and enjoyable.
You're a bit of a clown aren't ya? Pair valve does nothing to performance / cold start or fuel consumption
Would be good on the 2009 one as well?
great video. i will try these mods soon on my 2003 VFR, because of the on off effect it has on low rpm
Or, you could get a pre-VTEC vfr, I had a 99 model a good while back and it was nice and smooth, after i got it i kept bouncing it off the rev limiter for the first couple of weeks because it was so quiet and the power delivery was so linear.
Well it's 0-100 in first gear so you were speeding then
..........did all this and now I’ve got a smoother idle.....1, do your maint. 2, fill up with 92+ octane......and don’t piss and moan because it’s 40cents more.....I get 36+mpg on this bike stock.
Really good video I love it
You should certainly check your air filter more than once a year. lol
You should do other maintenance videos. I need to change my spark plugs in my VFR
+skyeric875 this winter I'm going to do my vfr's plugs. Luckily they are very easy. Just make sure you hand thread them in before tightening them down with the ratchet and be very careful not to over tighten!
HEROrr What Ive heard the fron 2 are easy but the back 2 are a bitch, thats what Im concerned about
The front spark plugs are under the oil cooler in front. Remove that and you have access to it. Rear plugs are just under the tank. Prop up the tank on the front while leaving bolts in hinged rear. Then just pull them out. Simple job.
@@HeroRR do u happen to know the torque spec for the plugs?
HEROrr have you done the fuel evap canister delete. I think I'm going to on my 07 vfr800 but was just wondering if anybody has done it or had a video of it being done. I have read it saves close to 4 pounds of weight off of it.
Does this cause any long term damadge?
Before making any mods, ask yourself - "am I smarter than a Honda Engineer"."am I smarter than Honda's entire engineering department"? I think not. Unless you're competitively racing the bike, keep it stock and only use OEM. I say this with 45+ years motorcycling experience, both street and racing.
If Honda's engineers didn't have to abide by noise regulations then there would be no flapper, 100%. There's a reason why their GP bikes don't have PAIR systems or snorkels..
I do feel I'm smarter than the EPA
What the hell is the pair wire, what are you disconnecting?
It feels like I never have to adjust the chain on mine. Should the bottom of the chain touch the rubber runner as when I tightened up it felt too tight. Its hard to gauge the 1 inch mark as the chain touches the runner. Any advice would be great. Thanks
If you're doing all these mods would a power commander be beneficial?
@HeroRR. Hello. In process of buying a 2002 VFR and the jerky throttle was one of the things that put me off the first (and only) one i looked at so far. Still getting one tho but that`s to be expected and this is the fix? Great. Other was "ticking"/rattling when cold. I assumed it was the valves as it`s approaching 30.000 miles. To be expected or walk away? Or not to worry but expect a valve adjustment summer 2020?
Hey man! Thanks for doing these vids, they're hella helpful! :)
Quick question: When lifting up the tank, where exactly is the pivot-point? Is it okay if the tank is still almost full, or could the pivot-point be too weak to hold the weight?
Thanks in advance, and ride safe, man!
Usually you want it as close to empty, even if you go to a service. Its much easier to work with it that way. Otherwise drain it a bit.
I just traded my 05 z750 for a 02 vfr800, the chap that owned it before me hasn't done any of these to it, are they really needed, necessary, or make a difference?
Nice job!
Great video 😁 thanks
holy shit, that nest lol
herorr is it better to drive now or u dont see the diffrence ?
Hi HERRO RR
Can you tell me what I have to by, for having the same mobile holder you have. On your Honda VFR 800
RAM Mounts X-Grip Kit
Thanks 😊
Does this work with the FI models? 1998-2001 if I recall...
I'd like to know too
Nice video
PAIR adds clean air at complete closed throttle to burn hydrocarbons that aren't being consumed through active open throttle temperatures. PAIR has nothing to do with active drive performance. Removing snorkel and disabling flapper merely robs you of mid-range torque by reducing air pressure in the air intake and flattens out (diminishes) the power curve. You have a more linear power but you are effectively reducing power to make it less responsive. I've never met anyone who wanted less power and less responsiveness in a bike like this. Trust Honda engineers who have been building this thing for DECADES, not internet idealogues.
If it removes the jerkyness at low revs then im willing to lose some torque. It makes driving in cities really awful and I happen to live in one. If I cant find a way to fix it, the bike isnt worth having to me and im gonna sell it.
....and wrong. reduces the vtec transition, removes a flat spot after VTEC kicks in. PC5 results showed increased power after mods. With a custom tune..much more power and better power curve. Add K&N filter and gutted exhasut and good to go. 1st gen & 6th gen owner-
Any experience with fuel consumption after doing this?
Sinbad Eatin' A McRib Agreed 110% my dude
Turned off PAIR on my Ninja 650 and i think there was a slight improvement in torque and she was a little more settled around idle (I've gotta have a clean throttle response at low revs)..slight improvement, easy to turnoff, no noticable change in fuel consumption. I do question the motivation for PAIRS more for immisions than rider satisfaction..wouldnt be surprised if other makes/models fair better but onky a little i'd say.
Can I buy the snorkel off of you?
36/42 tyre pressures iirc
he bumped them up to 31 + 35. 36 + 40 is good. The manual calls for 43 on R but thats too much
My vrf 800.. 2002.. Has a bad low end specially when it's hot but if I'm doing like. 30 mph in say 3rd gear it kind of chudders like it needs more revs for a smother ride is this common..
I have the same problem. As designed, this bike does not like running under 3K rpm
Thanks for the video, does anyone know if this mod also applies to the 5th gen vfr800?
Good mods. Thanks..Lol, just about having a forest on your airfilter. Some owners do not take care of their bikes.
do you put a battery tender on your bike when she's back in your garage?
I take this change. But the cold idle rpm is 1000. The warm rpm is 1200-1500. What ia the problem? Normally cold rpm higher than warm.
do the earlier 5th gen vfrs have this pair valve/flapper set up too?
Is this only specific to the californiUSSR variant?
Beautiful machine. Is it carburetor or EFI? Thanks. Ride well and be happy.
Matt Brown EFI and VTEC YOOO
Thanks Linkin, but what is YOOO? Lol.
Is that a GIVI or factory windshield?
Puig
This happened to my vfr I open it up with 100 acorns and a rats nest. Feel your pain
I believe you should have taken the top off the air box from the start.
31-35 psi? Why when the correct pressures are 36-42? Dino figures before and after would be useful.
Out of curiosity, why not force the flapper open? More air=more power and without the flapper doing its thing it'll still be smooth?
Its forced to be open when you remove the hose
The throttle hand grip is yamaha's stock grip. .
Nice.
what is the best version of this VFR 800 F OR VFR 800
2015 MODEL VFR 800F OR 2010 VFR 800 LİKE THAT WHŞCH ONE İSTE BEST HİGH HP EN LOW WEİGHT
Would the flapper and snorkel mod work for a 98?
I don't think the '98 has either a flapper nor a snorkel
why do you keep the tire pressure so low? Basically all bike now run 36F 42R.
Yeah 42max, not whats best. If you wanna push the courners hard u need low pressure 28f 35r. Its low tyre pressure in racing not high. High only helps excelleration tiny bit but greatly reduces tyre/road contact so cant courner as fast or break as short
Were u riding the bike with that trash in the air box?