I fitted and rode with the new .144 tube STIC this weekend. Wow, power was linear and very strong on the top end. I felt comfortable riding a gear higher in many places. So much fun to ride. I have a little bit more tuning I want to try before deciding on the final settings, but very positive and a significant difference from the stock block. Look out for a review video soon.
from Mark at Toyko: fitted and rode with the new .144 tube STIC this weekend. Wow, power was linear and very strong on the top end. I felt comfortable riding a gear higher in many places. So much fun to ride. I have a little bit more tuning I want to try before deciding on the final settings, but very positive and a significant difference from the stock block. Look out for a review video soon.
STIC Tuners: A/S and Pilot: The pilot jet plays a significant role in the STIC power system as the pilot fuel and its related air circuits are connected to the main tube outlet. The larger adjustment on the A/S plays a significant role in making the large pilot run clean, and it siphon breaks the pilot when you come back to idle. As far as the power circuit is concerned one could go to an even larger pilot #52/54. In some of the units here, we run pilots #60's and larger. All jet sizes have a transition point where the flow rate at low-speed flow is diminished as the size increases beyond a certain point. This applies to main jets as well as the smaller pilot jets. In this analogy compare a ¼” inch straw to a 1.5” straw; even though the larger straw will flow more liquid it will take more suction [vacuum] to cause that to happen. Further, as the suction [vacuum] diminishes to a certain level, the flow through the larger straw will stop abruptly causing it to run clean. Further, the larger pilot passage requires greater suction. A # 50 [fifty] pilot is .018" in diameter; the STIC crossover passage is [.031"]. As I said; the larger the pilot beyond a certain threshold; will run cleaner due to having a larger cross-sectional area. In summation, I hope this gives you a different outlook on how the STIC system operates. George STIC Headquarters
I wonder how it all compares to Lectron high velocity 38mm carb. Coz all I do with Lectron to get perfect jetting is 1) entering the winter season I turn the metering rod 1/4 turn in, and power jet 1/8 turn out; 2) entering the summer season I turn the metering rod 1/4 turn out and power jet 1/8 turn in.
I haven't had the opportunity to try a Lectron on my bike. I have read a lot about them and it appears that some love them (like you) and others don't. Those that don't like the Lectron typically complain about the bottom end response/power. johnpaulstez just left the following comment on my STIC Ride Review Video: "Sounds like you got that 1/8ish throttle blubbery spot cleaned up pretty well. I just can’t seem to get it straight on my 2017. I have a lectron with like five different metering rods, and that critical low RPM spot is just a mess." th-cam.com/video/CpzQ_3A6Nn0/w-d-xo.html
I have a 05 Cr125r bored and ported 144 6 speed vforce reeds and all the nick nacks I’d love to test this out but for 350$ I can’t persuade myself to do so I could even possibly do a review on it but I don’t have the proper setup to do so yet maybe in the near future but I’d love to try this product out....
I couldn't be happier with the Keihin PWK 38mm Air Striker Short + STIC metering block combination. If you're looking for maximum power, crisp response and broad power band it's an excellent solution. Every time I ride with it I can't stop smiling: th-cam.com/video/P0_htoLhn5Y/w-d-xo.html But compared to other solutions it is a little more expensive (about $330 + $295). One route you could consider going is getting the Keihin first, see how you like it and it you want even better performance purchase the STIC later. Regarding the SmartCarb, I did a review video and found it to be plug and play. Power is smooth, resulting in good traction. th-cam.com/video/_UemW9bim_E/w-d-xo.html I have not ridden with a Lectron on my bike. I've read mixed reviews of Lectrons. Some people like them, others do not. Setting appears to be tricky for some.
I love Hard Enduro - it’s too early to comment yet as I haven’t got the settings dialed in yet. It’ll probably be a few more weeks before the tuning work is complete as I waiting for a different needle jet to test. When I think I’ve got it running well I’ll make a review video...
When you have it dialed in can you mention the jetting and altitude you rode at. Thanks I've burned up all my free time watching your videos.im looking to buying a 2017 km 250sx. Plan on doing the Keihin short body carb and rk tek head for the first mods, what do you think.
Thanks for watching the videos. Hope you're enjoying the channel. Yes, with the Keihin and RK head the bike should run well. I plan to perform further tuning using the STIC in the next week or so and will make an update/review video after that is finished.
You'll love the STIC in your 125 SX. Torque, power and response are all improved. The STIC jet block is also less sensitive to temp and elevation changes than standard carbs.
Thanks for your interest. I am a STIC dealer and can ship to Germany no problem. You can purchase from here: www.tokyooffroad.com/product/stic-metering-block/
The STIC replaces the stock jet block in Keihin PWK carbs and holds the pilot and main jets and specially designed emulsification tube. Different size STIC emulsification tubes are available. 114A is recommended for 125s. Compared to a stock carb the STIC is far less sensitive to temp and elevation changes. I ride year round (-5C thorough +30C), elevation changes sea level to 2,000m with the same jetting and only find it necessary to fine tune the air screw setting.The STIC emulsification tube promotes very thorough mixing of gasoline and air due to it's special design.
No, specific problem with the Keihin. Having tried the Keihin + STIC it does work much better though. Power and torque are stronger, yet very linear and responsive. Also very consistent over weather and elevation.
I just received some smaller tubes (equivalent of smaller needle jet). I plan to test them next week and dial in the tuning. I’ll make an update/review video after this.
The STIC metering block holds the pilot, main and needle tube jets and replaces the stock Keihin block. It allows fuel to pass from the bowl to the venturi. The STIC accelerates fuel into a vortex, resulting in ultra fine fuel vapor in the venturi. The benefits over the stock block include increased power, improved throttle response, reduced sensitivity to elevation and temperature changes and more complete combustion.
Is this ok for a stock application? I have no mods other than planning a JD Jetting kit on my 2016 Husqvarna TE300 with a Keihin carb. And where did you get that fantastic idle screw? The plastic one on my carb has seen better days.
Yes, you can certainly add a STIC with the rest of the bike stock and experience a good increase in performance. I would recommend using a higher compression head too if budget allows. I recommend and RK Tek heads and they are excellent. The adjusters are made by Smokn: th-cam.com/video/JWyMjE9M2rw/w-d-xo.html
Race gas (higher octane fuel) only serves to prevent pre ignition and detonation caused by high compression and advanced timing. Nothing else. Race gas does not add horse power, it only allows some higher horse power engines to run properly. Carburation has nothing to do with the percentage of octane in a fuel.
Most people with Japanese bikes living in Japan tend to order OEM parts from their local dealer. Here are are a few online shops in Japan which sell motorcycle parts and accessories. Most pages are only in Japanese though... www.dirtfreak.co.jp auctions.yahoo.co.jp/list1/jp/26312-category.html (motorcycle parts, new and used) www.webike.net www.bikebros.co.jp
April 17, 2018. STIC jetting clarification: The STIC metering block comes pre-jetted to cover a full spectrum of applications from 125cc to 500cc. Yes, it is true the same main jet of 190 with a 48 pilot works on all of the applications; noticing this jetting is primarily designed for hot trial and motocross. This jetting applies to hot modified engines as well as stock; on average it will add five [5] hp to a stock engine. When the carburetors are bored to a larger size, it will make even more horsepower. There is no need to run a 36mm any longer as the 38 Keihin A/S will perform flawlessly. Contact me at this email STIC @ frontier .com [no spaces], and I will provide you with dyno reports that cover the entire spectrum. On applications [tracks, trails] requiring low-speed finesse such as Tokyo’s application; yes, it can be toned down to smaller passages. The STIC process is entirely new and cannot be compared to anything in the industry. Correctly jetted it has wicked acceleration and over-rev. Contact Inventor George
Plenty of people have gone Mikuni-> Lectron-> Keihin. Although I’ve never owned a Lectron I have ridden a friend’s bike fitted with one. I wasn’t that impressed with the bottom end. He’s thinking about fitting a Keihin now. Regarding the STIC, I haven’t finished tuning the settings yet (waiting for a smaller needle jet tube). I’ll make an update video when it’s dialed in and running well.
I should add that I'm still very pleased with the Keihin 38mm PWK Air Striker short with JD jetting kit. It runs great, with improved bottom end compared to the Mikuni and is far less sensitive to temperature and elevation changes. The STIK promises more power over the stock Keihin block so I'm keen to get it dialed in and test it.
Im in the 2k 7k riding area on a 19/300XC. Its Mikuni'ed now.... I have a NEW in-box PKW Keihen 38mm Short carb.😉I don't have the Stic-Metering-Block yet... What do you suggest for PJ, MJ, Needle/clip placement when I do buy a STIC from you? Thank you in advance for the excellent work you show us in advance! Servus!
The standard baseline setting for a 300 with a 38mm Keihin AS and STIC is: STIC tube=113A, pilot=50, main=190, needle=JD/STIC White on 3rd, airscrew 3.5 turns out from full in, Slide=#6.5, float height=7mm
Why full synthetic oil in a 2 stroke ? When I rebuild my topend years ago I applied Motul 710 on the piston and it drips off like water ( cold piston and cold oil) it don't stick on the piston ! What I must say it was a graffite coated one !
I like synthetic 2-stroke premix oil because it mixes with gasoline easily, is stable over time, minimal smoking and carbon deposits and typically has higher film strength than mineral oil (lubricates better).
Ummm... there are literally thousands of trail riders in the US running Amsoil Sabre at 80:1 or even 100:1. Including Jeff Slavens. Reasons being: longer time between rebuilds. You’re getting great piston/ring wear and very minimal carbon in the engine and especially the power valves.
Tokyo Offroad in the manual of my motorcycle (husky 300 2016) also indicates me proportion 60: 1, recommended brand "belray". I have always used motorex crossPower but it turns out that if it was done in that 60: 1 ratio, I would grease the spark plugs too much, and could fail. As the MOTOREX manufacturer recommends using it at 1%, I do it but adding a little more 1'1 1'2% and the results were much better, I do not miss any more spark plugs and when I open the engine you can see that everything is perfect . That's why I was surprised that you did not give any problem, a greeting from Spain, your channel is amazing! Congratulations and thanks for teaching us in this way the necessary mechanics to have our irons ready 😉✊🏽
Thanks for the positive feedback regarding the channel. I've run my 2017 KTM 250EXC at 60:1 for over 180H now and haven't fouled a plug due to the oil ratio. I have fouled plugs when dialing in the carb jetting though (when the setting is too rich). When I overhauled the top end at 140H the piston top and power valve were relatively clean. As such I don't see an issue in running 60:1.
If there was no change in power what you’re saying would be true. But there is a significant increase in power and over-rev with the STIC. Regarding fuel economy, I haven’t noticed a significant change, so that’s not an issue for the day rides I do either.
I fitted and rode with the new .144 tube STIC this weekend. Wow, power was linear and very strong on the top end. I felt comfortable riding a gear higher in many places. So much fun to ride. I have a little bit more tuning I want to try before deciding on the final settings, but very positive and a significant difference from the stock block. Look out for a review video soon.
from Mark at Toyko: fitted and rode with the new .144 tube STIC this weekend. Wow, power was linear and very strong on the top end. I felt comfortable riding a gear higher in many places. So much fun to ride. I have a little bit more tuning I want to try before deciding on the final settings, but very positive and a significant difference from the stock block. Look out for a review video soon.
George Boswell can u run pump gas 93 with this set up ?
STIC Tuners: A/S and Pilot: The pilot jet plays a significant role in the STIC power system as the pilot fuel and its related air circuits are connected to the main tube outlet. The larger adjustment on the A/S plays a significant role in making the large pilot run clean, and it siphon breaks the pilot when you come back to idle. As far as the power circuit is concerned one could go to an even larger pilot #52/54. In some of the units here, we run pilots #60's and larger. All jet sizes have a transition point where the flow rate at low-speed flow is diminished as the size increases beyond a certain point. This applies to main jets as well as the smaller pilot jets. In this analogy compare a ¼” inch straw to a 1.5” straw; even though the larger straw will flow more liquid it will take more suction [vacuum] to cause that to happen. Further, as the suction [vacuum] diminishes to a certain level, the flow through the larger straw will stop abruptly causing it to run clean. Further, the larger pilot passage requires greater suction. A # 50 [fifty] pilot is .018" in diameter; the STIC crossover passage is [.031"]. As I said; the larger the pilot beyond a certain threshold; will run cleaner due to having a larger cross-sectional area. In summation, I hope this gives you a different outlook on how the STIC system operates. George STIC Headquarters
Thinking about using the STIC on a CR500 Snowbike. How do you think it would do in the cold? Thanks
Looking forward to the full review!
When changing the pilot jet be sure to place a few drops of oil on the threads to ensure that it fully seats.
I wonder how it all compares to Lectron high velocity 38mm carb. Coz all I do with Lectron to get perfect jetting is 1) entering the winter season I turn the metering rod 1/4 turn in, and power jet 1/8 turn out; 2) entering the summer season I turn the metering rod 1/4 turn out and power jet 1/8 turn in.
I haven't had the opportunity to try a Lectron on my bike. I have read a lot about them and it appears that some love them (like you) and others don't. Those that don't like the Lectron typically complain about the bottom end response/power. johnpaulstez just left the following comment on my STIC Ride Review Video: "Sounds like you got that 1/8ish throttle blubbery spot cleaned up pretty well. I just can’t seem to get it straight on my 2017. I have a lectron with like five different metering rods, and that critical low RPM spot is just a mess."
th-cam.com/video/CpzQ_3A6Nn0/w-d-xo.html
I wonder if this would fit Keihin PWK38S ?
Good information can’t wait to see the results.
witch keihin carb do you have the short body, 38mm E type or M type.
My Keihin Air Striker 38mm Short is non-screw too so I needed the E type STIC.
I have a kx500 with a keihin 38mm pwk carb will this fit ? and will it provide better running right through the rev range??? cheers form Newzealand.
I have a 05 Cr125r bored and ported 144 6 speed vforce reeds and all the nick nacks I’d love to test this out but for 350$ I can’t persuade myself to do so I could even possibly do a review on it but I don’t have the proper setup to do so yet maybe in the near future but I’d love to try this product out....
Good review!, i was interested in purchase or go with lectron, any thoughts on lectron carb vs smart carb or modified like yours?
I couldn't be happier with the Keihin PWK 38mm Air Striker Short + STIC metering block combination. If you're looking for maximum power, crisp response and broad power band it's an excellent solution. Every time I ride with it I can't stop smiling:
th-cam.com/video/P0_htoLhn5Y/w-d-xo.html
But compared to other solutions it is a little more expensive (about $330 + $295). One route you could consider going is getting the Keihin first, see how you like it and it you want even better performance purchase the STIC later.
Regarding the SmartCarb, I did a review video and found it to be plug and play. Power is smooth, resulting in good traction.
th-cam.com/video/_UemW9bim_E/w-d-xo.html
I have not ridden with a Lectron on my bike. I've read mixed reviews of Lectrons. Some people like them, others do not. Setting appears to be tricky for some.
Where did you pick up the knurled air screw and idle adjustment screws?
damon jones - The adjusters are made by SMOKN in the UK and available on eBay, or directly from the SMOKN web shop.
This is a video which I previously made about the adjusters: th-cam.com/video/JWyMjE9M2rw/w-d-xo.html
Tokyo did you see much improvement ? I swapped my much for a 38mm airstyker and it’s crisp I don’t see how it could get any better just more power?
I love Hard Enduro - it’s too early to comment yet as I haven’t got the settings dialed in yet. It’ll probably be a few more weeks before the tuning work is complete as I waiting for a different needle jet to test. When I think I’ve got it running well I’ll make a review video...
Do you have an updated video of you carb chart settings.
Yes, this video has my latest settings (Keihin + STIC). See the description for details: th-cam.com/video/CpzQ_3A6Nn0/w-d-xo.html
When you have it dialed in can you mention the jetting and altitude you rode at. Thanks I've burned up all my free time watching your videos.im looking to buying a 2017 km 250sx. Plan on doing the Keihin short body carb and rk tek head for the first mods, what do you think.
Thanks for watching the videos. Hope you're enjoying the channel. Yes, with the Keihin and RK head the bike should run well. I plan to perform further tuning using the STIC in the next week or so and will make an update/review video after that is finished.
Be sure to buy the STIC metering block for your Keihin short body
George Boswell does it help
Dear Jesica , it will shock you how good the STIC is. What type of riding and the size and make of the bike. George
George Boswell looking to get 2017 ktm 250sx with keihin 38mm carb.
Looking forward to the ride report on this
Can u give me the web, who sale stic metering
I have a 2015 125 sx and iam looking for a good option for more power!
You'll love the STIC in your 125 SX. Torque, power and response are all improved. The STIC jet block is also less sensitive to temp and elevation changes than standard carbs.
Hello there is it possible to get a adress from a dealer of this STIC meterin Block ? I am from Germany and i am interrested.
Thanks for your interest. I am a STIC dealer and can ship to Germany no problem. You can purchase from here: www.tokyooffroad.com/product/stic-metering-block/
So what does this do? Does it self adjust? Or what
The STIC replaces the stock jet block in Keihin PWK carbs and holds the pilot and main jets and specially designed emulsification tube. Different size STIC emulsification tubes are available. 114A is recommended for 125s. Compared to a stock carb the STIC is far less sensitive to temp and elevation changes. I ride year round (-5C thorough +30C), elevation changes sea level to 2,000m with the same jetting and only find it necessary to fine tune the air screw setting.The STIC emulsification tube promotes very thorough mixing of gasoline and air due to it's special design.
Tokyo Offroad thank you i live in utah and elevation change is bad i think this really might help
Were you having a problem before this or just wanted to try it?
No, specific problem with the Keihin. Having tried the Keihin + STIC it does work much better though. Power and torque are stronger, yet very linear and responsive. Also very consistent over weather and elevation.
Been a couple months....any update on this thing? Did it work out?
I just received some smaller tubes (equivalent of smaller needle jet). I plan to test them next week and dial in the tuning. I’ll make an update/review video after this.
So it's safe to say...as it came, it didn't work out to well then? Definitely interested in how it worked out after the modifications.
@@Shecki603 Wow, no reply after a year lol
What's the purpose of this metering block?
The STIC metering block holds the pilot, main and needle tube jets and replaces the stock Keihin block. It allows fuel to pass from the bowl to the venturi. The STIC accelerates fuel into a vortex, resulting in ultra fine fuel vapor in the venturi. The benefits over the stock block include increased power, improved throttle response, reduced sensitivity to elevation and temperature changes and more complete combustion.
....empty wallet...
Is this ok for a stock application? I have no mods other than planning a JD Jetting kit on my 2016 Husqvarna TE300 with a Keihin carb. And where did you get that fantastic idle screw? The plastic one on my carb has seen better days.
Yes, you can certainly add a STIC with the rest of the bike stock and experience a good increase in performance. I would recommend using a higher compression head too if budget allows. I recommend and RK Tek heads and they are excellent. The adjusters are made by Smokn: th-cam.com/video/JWyMjE9M2rw/w-d-xo.html
You have the run race fuel for this to be worth while? Highest pump gas in Canada is 94.
Jessica Hegion not true
Race gas (higher octane fuel) only serves to prevent pre ignition and detonation caused by high compression and advanced timing. Nothing else. Race gas does not add horse power, it only allows some higher horse power engines to run properly. Carburation has nothing to do with the percentage of octane in a fuel.
This can be quickly verified with the use of your search engine.
Hi can I ask you for something, can you give me some links with Japan parts to dirt bike, I'm from Poland Thanks !
Most people with Japanese bikes living in Japan tend to order OEM parts from their local dealer. Here are are a few online shops in Japan which sell motorcycle parts and accessories. Most pages are only in Japanese though...
www.dirtfreak.co.jp
auctions.yahoo.co.jp/list1/jp/26312-category.html (motorcycle parts, new and used)
www.webike.net
www.bikebros.co.jp
April 17, 2018. STIC jetting clarification: The STIC metering block comes pre-jetted to cover a full spectrum of applications from 125cc to 500cc. Yes, it is true the same main jet of 190 with a 48 pilot works on all of the applications; noticing this jetting is primarily designed for hot trial and motocross. This jetting applies to hot modified engines as well as stock; on average it will add five [5] hp to a stock engine. When the carburetors are bored to a larger size, it will make even more horsepower. There is no need to run a 36mm any longer as the 38 Keihin A/S will perform flawlessly. Contact me at this email STIC @ frontier .com [no spaces], and I will provide you with dyno reports that cover the entire spectrum. On applications [tracks, trails] requiring low-speed finesse such as Tokyo’s application; yes, it can be toned down to smaller passages. The STIC process is entirely new and cannot be compared to anything in the industry. Correctly jetted it has wicked acceleration and over-rev. Contact Inventor George
WHAT STEROLIZED WIPLET FOSS COULD I USE FOR MY 7000cc MERCEDE PWIN COVERTABLE? I WAS THINKING A J1-Q79 MACHOLET VERSES A XXX-55 FLANNELL
Wouldnt it just be better, just to buy a Lectron ??
Plenty of people have gone Mikuni-> Lectron-> Keihin. Although I’ve never owned a Lectron I have ridden a friend’s bike fitted with one. I wasn’t that impressed with the bottom end. He’s thinking about fitting a Keihin now. Regarding the STIC, I haven’t finished tuning the settings yet (waiting for a smaller needle jet tube). I’ll make an update video when it’s dialed in and running well.
I should add that I'm still very pleased with the Keihin 38mm PWK Air Striker short with JD jetting kit. It runs great, with improved bottom end compared to the Mikuni and is far less sensitive to temperature and elevation changes. The STIK promises more power over the stock Keihin block so I'm keen to get it dialed in and test it.
NO! buy the STIC metering block you won't be sorry. This is completely new technology, this is way better than Smart Carb and the Lectron .
Im in the 2k 7k riding area on a 19/300XC. Its Mikuni'ed now....
I have a NEW in-box PKW Keihen 38mm Short carb.😉I don't have the Stic-Metering-Block yet...
What do you suggest for PJ, MJ, Needle/clip placement when I do buy a STIC from you? Thank you in advance for the excellent work you show us in advance! Servus!
The standard baseline setting for a 300 with a 38mm Keihin AS and STIC is: STIC tube=113A, pilot=50, main=190, needle=JD/STIC White on 3rd, airscrew 3.5 turns out from full in, Slide=#6.5, float height=7mm
Ok. Thank you. Ill be stic'en soon ok.
How much do they retail for?
thermos O'Flask - $295
Good video ! But 60/1 ?
Massimo Broccoli - Yes, 60:1 is the KTM recommended ratio with Motorex Cross Power 2T.
Why full synthetic oil in a 2 stroke ? When I rebuild my topend years ago I applied Motul 710 on the piston and it drips off like water ( cold piston and cold oil) it don't stick on the piston ! What I must say it was a graffite coated one !
I like synthetic 2-stroke premix oil because it mixes with gasoline easily, is stable over time, minimal smoking and carbon deposits and typically has higher film strength than mineral oil (lubricates better).
Ummm... there are literally thousands of trail riders in the US running Amsoil Sabre at 80:1 or even 100:1. Including Jeff Slavens. Reasons being: longer time between rebuilds. You’re getting great piston/ring wear and very minimal carbon in the engine and especially the power valves.
Motorex cross power 60:1?! 🤔is not too much?
medaloko333 - 60:1 (i.e. 60L Gasoline: 1L Cross Power 2T Oil) is the premix ratio recommended by KTM. It’s listed in the manual.
Tokyo Offroad in the manual of my motorcycle (husky 300 2016) also indicates me proportion 60: 1, recommended brand "belray". I have always used motorex crossPower but it turns out that if it was done in that 60: 1 ratio, I would grease the spark plugs too much, and could fail. As the MOTOREX manufacturer recommends using it at 1%, I do it but adding a little more 1'1 1'2% and the results were much better, I do not miss any more spark plugs and when I open the engine you can see that everything is perfect . That's why I was surprised that you did not give any problem,
a greeting from Spain, your channel is amazing!
Congratulations and thanks for teaching us in this way the necessary mechanics to have our irons ready 😉✊🏽
Thanks for the positive feedback regarding the channel. I've run my 2017 KTM 250EXC at 60:1 for over 180H now and haven't fouled a plug due to the oil ratio. I have fouled plugs when dialing in the carb jetting though (when the setting is too rich). When I overhauled the top end at 140H the piston top and power valve were relatively clean. As such I don't see an issue in running 60:1.
Perfect! in that case I think the following will be a readjustment of carburetion, thank you so much for your time ✊🏽👍🏼
It cant be a good signal if you have to go up on the main.thats running less efficient than stock .
If there was no change in power what you’re saying would be true. But there is a significant increase in power and over-rev with the STIC. Regarding fuel economy, I haven’t noticed a significant change, so that’s not an issue for the day rides I do either.
Nice ratchet
top brazil...
Very expensive. Mod for small gain
$420? LOL