Diagnosing Carb Issues On The XR400
ฝัง
- เผยแพร่เมื่อ 12 ก.ค. 2017
- Hermit goes over how he diagnosed and fixed a stutter on the XR400.
Follow Hermit DaVlog:
/ hermitdavlog
/ hermitdavlog
/ hermitdavlog
/ hermitdavlog
Bikes Hermit rides:
XR 400R (XR400)
XR 250R (XR250)
WR 250R (WR250R)
Gear:
Helmets:
Icon Variant - www.amazon.com/dp/B0079VKTN6?t...
Speed and Strength SS2500 - www.amazon.com/dp/B00EFMR3WM?t...
Camera:
GoPro Hero 3+ Silver - www.amazon.com/dp/B00F3F0EIU?t...
Mic:
Sony ECM PC60 - www.amazon.com/dp/B0058MJWJK?t...
-------------------------------------------------------
"Corncob" Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0
creativecommons.org/licenses/b...
![[ไฮไลต์] แบดมินตันชาย SHI Yu Qi (จีน) vs วิว กุลวุฒิ (ไทย) รอบ 8 คน | โอลิมปิก 2024](http://i.ytimg.com/vi/f7z7taforOM/mqdefault.jpg)
Reminds me of this one time me and my friends cleaned the carb on my DRZ: we put the tank on the grass without thinking and some dirt went inside the petcock which then went into the carb. Was quite distressing because we couldn't figure out what we did wrong, but then when we unplugged the fuel line I saw dirt coming out and the answer was immediately obvious. Cleaned the carb again, and its been fine since then.
P.S. Glad to see you're still alive!
Doesn't take much I guess.
Haha, funny how it ended up being the very first thing you said it wasn't. Glad the bike is running well now, looks like a lot of fun!
It is a fun bike. Really fun.
Check out the clearances of the float against the walls of the bowl. Sometimes the float lightly contacts the wall of the bowl and this can cause sticking. Check the clearance between the float and bowl and check the edges of the bowl carefully to see if there is any light marks on the floats from rubbing on the bowl.
Hadn't thought of that. Good one.
I always run a secondary/inline fuel filter the petcock mesh isn't fine enough to stop all the dirt. black sooty stuff is usually the fuel line braking down you may want to replace it if you haven't. Glad you finally got it worked out. Great vids by the way.
I did replace that line, but I may have used the old line for a bit after I installed that carb. Good call.
Sooo.... Hermit bans himself for saying to clean the carb?
Yep.
Well duh man, you probably should clean the brand new pumper carb first. MUAHAHA! ;D
lol wait I was right??! haha!!!
Even a broken clock...
@hermit DaVlog: I have the xr's only pumper carb too, I got it mainly because you did lol. Ive been experiencing a similar problem almost like the float is set to high. It was leaking when i turned the gas on after installing a 440 kit. I taped the carb a little, nothing.... So i just dumped the bike on its side in the grass. problem solved lol. but now it seams like the carb wants to leak even if its just beyond a kick stand angle. I might have to take it out again and clean it. Thanks for your vigilance on the 400. They really are awesome bikes bro! I got one the day they came out when I was 15! I didn't take care of it properly so it became a hot mess. but the one I have now is coming along nicely
Thanks. Keep watching this summer. I'm almost done with this bike and ready to do a cool reveal. I'm still getting crap in the carb when I drain it, but it hasn't been stuttering when I ride. I also have been turning off the petcock a block away from the house and letting it run dry when I put it away for the week.
that video was a big help! having the same trouble on the one I'm working on
How did you resolve your issue?
Thank you!
I wanted to also mention to also bench test your carb with a vacuum pump or gas before reinstalling it. I run an extra inline filter all the time. It’s cheap insurance.
Ahahahahah...Bro that very issue was going through my mind and Im like damn I just ran across the video and I don’t wanna be banned. I had a similar problem last season and I let the bike sit through COVID. I just cleaned the carb and damn same issue so I went back over the the tube where the float needle drops into and the metal seat area with a “G-TIP” from Bear Metal Gun Cleaning Supplies cut in half so I can secure it into a drill and really remove that ethanol residue with CARB cleaner. Anyhow I’m glad to see you got it sorted. Great video, great bike and enjoy the ride.
Hey Hermit, this is only sorta related but I have found that running something like seafoam or gas with detergents like chevrons techron helps. I make sure to run a tank with additives every now and then. just to keep things cleaned out.
Good tip. Thanks!
hey man got to your channel only because I saw it on everide's channel.
Good, you're in better hands now.
Dude I’m having this exact problem right now!! Did u end up figuring it out?
contamination under my float needle was causing incontinence on my CRF230F.
Adjust the valves if the carb is clean and tank is good
I finally lost my 15lbs on my "not having pizza for lunch every day" diet. So, it is now OK for you to ride your XR. I was having strange problems with a new Lectron carb I purchased - maybe I need to clean it too?
Those carbs are freakin' cool. I want to try one on something someday.
I've been having this issue. When I pulled the Petcock from the tank, it was fried. The screen wasn't even there anymore and the plastic was all broken and falling apart. Probably hadn't been changed for the life of the motorcycle 03. I first noticed pieces in the float bowl cap. So, now I know I need to clean the whole carb and start over. I might try just cleaning the float bowl and jets. I saw someone on YT do it with the carburetor still on the bike. Runs great when it's working right ...
Late comment.
But when you replaced the Petcock Feul Valve. Did it fix the problem?
@@Zen_U-Tube hell ya I had no more problems after that fix.
@@RideWithTheWolf alright thanks. I've had this problem for 1 year and had to tried to fix it more that 50 times.
@@Zen_U-Tube on the XR, get the needle and jetting right for your altitude. It's not starting?
the flowst in the carb may be binding up inside
What size jets are you running? I've got a xr400 with the mikuni tm36 carb and live across 70 from you at 9k. I'm going to rebuild the carb and am looking for a starting point for jets to order.
Take your petcock apart and you will see why this is happening. The fuel filter is keeping the stuff out of the carb because it is down steam of your petcock.Every time you turn your gas on and off little pieces of the petcock go into the carb.So your bike has a band aid on it until you replace your petcock.Sooner or later your filter will get plugged up again and cause you to have problems.
That's a good theory. I did take the pedic out and pulled the filters off and cleaned it, but I wasn't really paying attention to the seals in the pedic itself. I'll replace it if the problem pops up again.
@@HermitDaVlog lol u mean the fuel petcock not pedic
Make sure your air filter cleaned and oiled and sealing properly
Will do.
Upside down floats? Air leaks? Needle and seat?
I was wondering if you were on vacation.
it looks like its coming from the float drain hose, the seal on the screw for it might be bad. my brothers xr70 has the same issue
I'll look at that too. Thanks.
I was thinking a seal as well. They don't make things like they used too that's for sure :(
glad you got some results...
I had my theories but seems you have had some luck on your own. but I would like to say 1 did you blow outvyour breather hose? if not you may be sucking crud back in. as the slide gose down it will form a low presume vecume on the breather, and if there is crud or perished rubber there in may suck it in. 2, is the breather perished and in need of replacement? 3, how dose your breather run? generally from factory they drop toward the ground and out near the swing arm. but this is some times a cause of issues (generally a blocked and pressure build up at breather, obviously not in your case) so like the jeep and other 4wders do, many people believe it's best to rout these up along the frame and the put a U bend down. up so that it doesn't get blocked from mud, dirt and so on blocking it and the U bend so that dust and so on doesn't fall into it. 4, are any of the other rubber lines perished, perished rubber will break down into small black dusty crud and block jets and needle and seats causing simptums like you have described..
just a few ideas to future proof you XR-lant bike...
Excellent suggestions. In this case all new hoses came with the carb, but this is something I'll pay attention to on all my bikes in the future.
my friend wants a dual sport, do you recommend drz400e or xr400? he wants to use it as a lightweight adventure bike. i have a drz400e but don't know anything about the xr400, except people say it has good low end torque. i recommended him these 2 because he wants cheap and low maintenance, not to mention reliable.
Mana Dengsoth personally I own a slightly modded dr200 and the Dr's in general are pretty reliable plus decent gas mileage
Mana,I think it comes down to this.The xr is better off road, the drz is better on pavement.My xr seemed to have less problems.DRZs have a bunch problems that XRs don't have.I still ride a drze because the 10 extra horses,but if they made a 40 horse power xr400 I would be in heaven.
king troll Can you explain what problems the Drz can have? Suzuki definitely didnt make the dr/drz light compared to others lol
drz 400 problems that I have had.All the locktight mods need to be done.stator burned out.water pump leaks.shift shaft seal.Freepower mod so wire doesn't melt.ckeck that front sprocket bolt alot.The only problem xr400s have is the wheels and the kick starter spine shaft breaks off.
ouch, hopefully mine doesnt junk out
what tires are you running?
Replace the fuel line? Your going to sent that carb back and getting a new one. That's how I see this story ending.
I did replace that line. Like I said in the video a more thorough cleaning fixed it.
Hermit DaVlog glad you didn’t have dual carbs like my 85 XL600R with the same issue -_- lol
What are all those holes on the side of the road?
What holes? You're freaking me out, man.
Hermit DaVlog on the switchback I think. They looked like a backhoe dug them.
Hermit DaVlog 6:36
Where the hell are you riding that there's wild elk running around?
Foothills just west of Denver.
Just last week I drove around that area between Bailey and Evergreen. So beautiful.
Personally , if I may..... I think your rotary cuff is out of line ...... this usually happens to bikes that have owners with a weird sense of humor... My suggestion is to remove the back tire and bounce it a few times and reinstall.... Then and only then rub your petcock , Should be ok after that boss man 👀😳👀cheers and safe riding
Thanks! I'll try that tonight!
or may be a defective carb
Hey I just bought an xr 400 and the guy just had it serviced, he sais he's rarely ridden it in the last 10 years, we'll after I got it home and rode it around for a while it started heating up and smelling really bad, anyone have any ideas what this could be, did I get scammed and the motor is shot? Anything helps thanks.
Did you figure out what it was . Probably burned gas
well you done told on yourself, you're a rich man. Carb float sticking so you purchased a new fuel tank haha. Sorry it had to be said. Stay safe
Well I ordered the tank before I realized the bike wasn't house broken, otherwise I wouldn't have made it where it could just hold more to put on the floor.
I think my story sounds better haha. Stay safe
It's petcock, unless what you're saying is petcock hermitized.
Weee!
Weee!
Pedic,and most of us are morons?I'll bet it happens again.Replace your petcock next time.I had the same exact issue on my xr650r.
Brand new doesn't mean clean...clean the carb