Thanks a lot!power-full wrote: ↑Sun Apr 10, 2022 6:43 am good..I'm so sorry about all this about the war... soon you can ride a motorcycle again.... I'm so far away and so scared,,..I don't know how you guys are so strong and put up with it....., ,..a lot of strength...![]()
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Pcx Yuminashi Chainsaw 164!
Moderator: Modsquad
Re: Pcx Yuminashi Chainsaw 164!
- power-full
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Re: Pcx Yuminashi Chainsaw 164!
Hello . why don't they mount the yuminashi turbine with more cooling blades?
until seeing me it has worked
until seeing me it has worked
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https://www.facebook.com/sergiofininho
Pcx powerfull kit yuminashi 168cc
93000km 23.03.2022 dont stop..
Pcx powerfull kit yuminashi 168cc
93000km 23.03.2022 dont stop..
Re: Pcx Yuminashi Chainsaw 164!
Blades are orientated counter to stock. Orginal fan pulls air in thru the radiator, what is that one going to do?power-full wrote: ↑Sun Apr 10, 2022 9:31 am Hello . why don't they mount the yuminashi turbine with more cooling blades?
until seeing me it has worked
I tried that one on mine few years back, and my temperature gauge went up...so, ive went back to stock fan. Works well.
Although, I have bought am electric fan, so I can ditch the power sapping mechanical one away. May gain extra 1hp..I hope...
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Re: Pcx Yuminashi Chainsaw 164!
Pcxdemon, you ever Dyno your set up?
2019 Honda Click 125i
Yuminashi 164cc bore kit w/150 head
32mm throttle body and intake
13.5° SpeedTuner variator
15gr Dr. Pulley sliders
100/80-14(F), 120/80-14(R) Pirelli Angel Scooters
YSS front fork kit, YSS G-Series rear shock
Yuminashi 164cc bore kit w/150 head
32mm throttle body and intake
13.5° SpeedTuner variator
15gr Dr. Pulley sliders
100/80-14(F), 120/80-14(R) Pirelli Angel Scooters
YSS front fork kit, YSS G-Series rear shock
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- Regular User
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- Joined: Tue Apr 26, 2022 12:26 am
- Year: 2019
- Color: Gunmetal
- Location: Philippines
Re: Pcx Yuminashi Chainsaw 164!
A question on throttle body and manifold size for the Yumanishi 150cc head. Which size would be best? I am seeing 30mm, 32mm, and 34mm throttle bodies and corresponding manifolds. I know the intake valve is 29mm and I do know that going too large can be a detriment.
Insites? Suggestions? I haven't made a decision yet but probably will need to do so soon.
Insites? Suggestions? I haven't made a decision yet but probably will need to do so soon.
2019 Honda Click 125i
Yuminashi 164cc bore kit w/150 head
32mm throttle body and intake
13.5° SpeedTuner variator
15gr Dr. Pulley sliders
100/80-14(F), 120/80-14(R) Pirelli Angel Scooters
YSS front fork kit, YSS G-Series rear shock
Yuminashi 164cc bore kit w/150 head
32mm throttle body and intake
13.5° SpeedTuner variator
15gr Dr. Pulley sliders
100/80-14(F), 120/80-14(R) Pirelli Angel Scooters
YSS front fork kit, YSS G-Series rear shock
- power-full
- Regular User
- Posts: 271
- Joined: Sat Jan 21, 2017 6:42 am
- Year: 2010
- Color: preta
- Location: paio pires seixal portugal
Re: Pcx Yuminashi Chainsaw 164!
32mm our best 35mm
https://www.facebook.com/sergiofininho
Pcx powerfull kit yuminashi 168cc
93000km 23.03.2022 dont stop..
Pcx powerfull kit yuminashi 168cc
93000km 23.03.2022 dont stop..
- power-full
- Regular User
- Posts: 271
- Joined: Sat Jan 21, 2017 6:42 am
- Year: 2010
- Color: preta
- Location: paio pires seixal portugal
Re: Pcx Yuminashi Chainsaw 164!
https://www.facebook.com/sergiofininho
Pcx powerfull kit yuminashi 168cc
93000km 23.03.2022 dont stop..
Pcx powerfull kit yuminashi 168cc
93000km 23.03.2022 dont stop..
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- Regular User
- Posts: 52
- Joined: Tue Apr 26, 2022 12:26 am
- Year: 2019
- Color: Gunmetal
- Location: Philippines
Re: Pcx Yuminashi Chainsaw 164!
Thanks for the feedback power-full. We have a brand here in the Philippines called Pitsbike which has 30, 32 and 34mm throttle body and manifold sets for about $60 US including local shipping. I don't know how good they are but might be worth trying.
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- Screenshot_2022-05-27-19-34-20-79_2abacf34316c15a12c3cebabd203d65f.jpg (92.69 KiB) Viewed 913651 times
2019 Honda Click 125i
Yuminashi 164cc bore kit w/150 head
32mm throttle body and intake
13.5° SpeedTuner variator
15gr Dr. Pulley sliders
100/80-14(F), 120/80-14(R) Pirelli Angel Scooters
YSS front fork kit, YSS G-Series rear shock
Yuminashi 164cc bore kit w/150 head
32mm throttle body and intake
13.5° SpeedTuner variator
15gr Dr. Pulley sliders
100/80-14(F), 120/80-14(R) Pirelli Angel Scooters
YSS front fork kit, YSS G-Series rear shock
Re: Pcx Yuminashi Chainsaw 164!
I did while ago. It had 31mm throttle body and ok transmition set up. Then again, had no base, stock pcx to test and compare first so I guess dyno calibration may have been incorrect. Anyway, it put out 15 something HP at the wheel. Once I installed 34mm Forza throttle body and dialed in transmition better, it became much more...but never went back for retest..
Re: Pcx Yuminashi Chainsaw 164!
34mm TB all the way...even better if you could install 31mm intake valve...I haven't done the valve,would love to. That's my restriction now, and I can feel it...Hobbit112 wrote: ↑Fri May 27, 2022 4:23 am A question on throttle body and manifold size for the Yumanishi 150cc head. Which size would be best? I am seeing 30mm, 32mm, and 34mm throttle bodies and corresponding manifolds. I know the intake valve is 29mm and I do know that going too large can be a detriment.
Insites? Suggestions? I haven't made a decision yet but probably will need to do so soon.
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- Joined: Tue Apr 26, 2022 12:26 am
- Year: 2019
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Re: Pcx Yuminashi Chainsaw 164!
Went with the 32mm Pitsbike set up for now which should be plenty with the 29mm valve in the 150 head.
Have received all parts now so install should be next week. Mechanic is going to modify my exhaust for the bore kit (don't know what will be done yet) and install a plug for an AFR probe. Mechanic asked if I want it tuned but don't know how much can be done with stock ecu other than a reset. Will run it on the Dyno so have my fingers crossed.
Have received all parts now so install should be next week. Mechanic is going to modify my exhaust for the bore kit (don't know what will be done yet) and install a plug for an AFR probe. Mechanic asked if I want it tuned but don't know how much can be done with stock ecu other than a reset. Will run it on the Dyno so have my fingers crossed.
2019 Honda Click 125i
Yuminashi 164cc bore kit w/150 head
32mm throttle body and intake
13.5° SpeedTuner variator
15gr Dr. Pulley sliders
100/80-14(F), 120/80-14(R) Pirelli Angel Scooters
YSS front fork kit, YSS G-Series rear shock
Yuminashi 164cc bore kit w/150 head
32mm throttle body and intake
13.5° SpeedTuner variator
15gr Dr. Pulley sliders
100/80-14(F), 120/80-14(R) Pirelli Angel Scooters
YSS front fork kit, YSS G-Series rear shock
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- Regular User
- Posts: 52
- Joined: Tue Apr 26, 2022 12:26 am
- Year: 2019
- Color: Gunmetal
- Location: Philippines
Re: Pcx Yuminashi Chainsaw 164!
Installation complete, now time for break-in. Having an issue with cold starting. Could turn motor over once, then nothing. And with new LiFePO battery with 180cca. Turned crank over manually a few times with a wrench and then would start. Hoping for better tomorrow.
2019 Honda Click 125i
Yuminashi 164cc bore kit w/150 head
32mm throttle body and intake
13.5° SpeedTuner variator
15gr Dr. Pulley sliders
100/80-14(F), 120/80-14(R) Pirelli Angel Scooters
YSS front fork kit, YSS G-Series rear shock
Yuminashi 164cc bore kit w/150 head
32mm throttle body and intake
13.5° SpeedTuner variator
15gr Dr. Pulley sliders
100/80-14(F), 120/80-14(R) Pirelli Angel Scooters
YSS front fork kit, YSS G-Series rear shock
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- Regular User
- Posts: 52
- Joined: Tue Apr 26, 2022 12:26 am
- Year: 2019
- Color: Gunmetal
- Location: Philippines
Re: Pcx Yuminashi Chainsaw 164!
Cold start issue has resolved itself, rings just needed to seat. Also had an overheating/coolant leak problem which we tracked down to the bore deck not being even. A slight sanding and now good.
Back to breaking it in. Have about 100km run AFTER fixing the deck, about 250km total. Oil change today.
QUESTION:. At certain rpms runs rich. Using stock ECU and a 180cc 10 hole injector. Will the ECU learn to decrease fuel at those rpms? As I said, only have about 100km on the final fix.
Back to breaking it in. Have about 100km run AFTER fixing the deck, about 250km total. Oil change today.
QUESTION:. At certain rpms runs rich. Using stock ECU and a 180cc 10 hole injector. Will the ECU learn to decrease fuel at those rpms? As I said, only have about 100km on the final fix.
2019 Honda Click 125i
Yuminashi 164cc bore kit w/150 head
32mm throttle body and intake
13.5° SpeedTuner variator
15gr Dr. Pulley sliders
100/80-14(F), 120/80-14(R) Pirelli Angel Scooters
YSS front fork kit, YSS G-Series rear shock
Yuminashi 164cc bore kit w/150 head
32mm throttle body and intake
13.5° SpeedTuner variator
15gr Dr. Pulley sliders
100/80-14(F), 120/80-14(R) Pirelli Angel Scooters
YSS front fork kit, YSS G-Series rear shock
Re: Pcx Yuminashi Chainsaw 164!
It will run rich on low throttle, half to 3/4 throttle should be around 14.7 and full throttle is at 13.2afr.
But that's on mine with takegawa fuel corrector.
Im not sure regarding your question on self correction. You need an afr meter and just watch what's it doing...
But that's on mine with takegawa fuel corrector.
Im not sure regarding your question on self correction. You need an afr meter and just watch what's it doing...
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Re: Pcx Yuminashi Chainsaw 164!
Have installed a 170cc injector with improvements notes. At least it idles now, lol. Still experiencing surging/sudden richness at various rpms. Mechanic adjusted something and I did notice some improvement there also but more is needed.
2019 Honda Click 125i
Yuminashi 164cc bore kit w/150 head
32mm throttle body and intake
13.5° SpeedTuner variator
15gr Dr. Pulley sliders
100/80-14(F), 120/80-14(R) Pirelli Angel Scooters
YSS front fork kit, YSS G-Series rear shock
Yuminashi 164cc bore kit w/150 head
32mm throttle body and intake
13.5° SpeedTuner variator
15gr Dr. Pulley sliders
100/80-14(F), 120/80-14(R) Pirelli Angel Scooters
YSS front fork kit, YSS G-Series rear shock
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- Regular User
- Posts: 52
- Joined: Tue Apr 26, 2022 12:26 am
- Year: 2019
- Color: Gunmetal
- Location: Philippines
Re: Pcx Yuminashi Chainsaw 164!
UPDATE:. 2000 km refresh. No longer idles, keeps searching to lower rpms until it dies, this is when fully warmed up. Tries to search down to 750-800 rpm, stock is about 1500. @ 1000 it will keep ticking over. Have also developed an oil leak, looks to be coming from the head at the bottom slot of the timing chain. Coolant leak at the head seems fixed, no overheat issues. Going to install a slightly hotter sparkplug, the 9 series.
FYI my mileage is running around 36 kilometers per liter, when stock was around 52.
FYI my mileage is running around 36 kilometers per liter, when stock was around 52.
2019 Honda Click 125i
Yuminashi 164cc bore kit w/150 head
32mm throttle body and intake
13.5° SpeedTuner variator
15gr Dr. Pulley sliders
100/80-14(F), 120/80-14(R) Pirelli Angel Scooters
YSS front fork kit, YSS G-Series rear shock
Yuminashi 164cc bore kit w/150 head
32mm throttle body and intake
13.5° SpeedTuner variator
15gr Dr. Pulley sliders
100/80-14(F), 120/80-14(R) Pirelli Angel Scooters
YSS front fork kit, YSS G-Series rear shock
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- Regular User
- Posts: 52
- Joined: Tue Apr 26, 2022 12:26 am
- Year: 2019
- Color: Gunmetal
- Location: Philippines
Re: Pcx Yuminashi Chainsaw 164!
If the joint is gone then is a new radiator needed?power-full wrote: ↑Wed Jan 19, 2022 3:10 pmValeriy7 wrote: ↑Wed Jan 19, 2022 8:06 am Installed Yuminashi full set of 164cc. I put a long gear 15/45. Started driving. In a few days I drove 180 km. Then the scooter started overheating. The red light came on. I pumped the water system many times, the result is deplorable. The steam is collected, the pressure in the radiator, the liquid is sent to the expansion tank. It does not return when the engine is cold. I changed the thermostat, checked the pipes, hoses, pump seal. No air leaks found. Could it be the head gasket?
by the symptoms the joint must be gone !!
I almost bet you are using the original 1.1 bar radiator cap!!! if this is one of the problems, another cause could be injection.. lack of gasoline causes overheating / engine clogging
2019 Honda Click 125i
Yuminashi 164cc bore kit w/150 head
32mm throttle body and intake
13.5° SpeedTuner variator
15gr Dr. Pulley sliders
100/80-14(F), 120/80-14(R) Pirelli Angel Scooters
YSS front fork kit, YSS G-Series rear shock
Yuminashi 164cc bore kit w/150 head
32mm throttle body and intake
13.5° SpeedTuner variator
15gr Dr. Pulley sliders
100/80-14(F), 120/80-14(R) Pirelli Angel Scooters
YSS front fork kit, YSS G-Series rear shock
Re: Pcx Yuminashi Chainsaw 164!
Problem solved. The cylinder head and cylinder were not flat. Aligned. I went back to the TAKEGAWA 170cc because it had a new gasket. I put a three-layer gasket, I did not dare to use a single-layer one. The flight is normal, but more than 104 km / h on GPS does not edit. True, at a temperature of +8 on the street. Cut-off at 127 km / h. In the kit I still have a 1.6 bar radiator cap. Injector 170ss. Throttle 31 mm. Manifold, air filter hose from Yuminashi, camshaft and rocker arms with double springs from Yuminashi, FI CON2 Takekawa. NGK9 spark plug, Yuminashi CVT and 15/45 long gear. The question is, can Yuminashi's copper head gasket be reused if made soft?Valeriy7 wrote: ↑Wed Jan 19, 2022 8:06 am Installed Yuminashi full set of 164cc. I put a long gear 15/45. Started driving. In a few days I drove 180 km. Then the scooter started overheating. The red light came on. I pumped the water system many times, the result is deplorable. The steam is collected, the pressure in the radiator, the liquid is sent to the expansion tank. It does not return when the engine is cold. I changed the thermostat, checked the pipes, hoses, pump seal. No air leaks found. Could it be the head gasket?
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Re: Pcx Yuminashi Chainsaw 164!
Aha! I had a similar experience! Continued to lose coolant (even more than before!) so went to another mechanic. Several new gaskets (oil seals), a new water pump and reset the cylinder head with new stock 150 head gasket and problem corrected.Valeriy7 wrote: ↑Sun Mar 12, 2023 5:23 amProblem solved. The cylinder head and cylinder were not flat. Aligned. I went back to the TAKEGAWA 170cc because it had a new gasket. I put a three-layer gasket, I did not dare to use a single-layer one. The flight is normal, but more than 104 km / h on GPS does not edit. True, at a temperature of +8 on the street. Cut-off at 127 km / h. In the kit I still have a 1.6 bar radiator cap. Injector 170ss. Throttle 31 mm. Manifold, air filter hose from Yuminashi, camshaft and rocker arms with double springs from Yuminashi, FI CON2 Takekawa. NGK9 spark plug, Yuminashi CVT and 15/45 long gear. The question is, can Yuminashi's copper head gasket be reused if made soft?Valeriy7 wrote: ↑Wed Jan 19, 2022 8:06 am Installed Yuminashi full set of 164cc. I put a long gear 15/45. Started driving. In a few days I drove 180 km. Then the scooter started overheating. The red light came on. I pumped the water system many times, the result is deplorable. The steam is collected, the pressure in the radiator, the liquid is sent to the expansion tank. It does not return when the engine is cold. I changed the thermostat, checked the pipes, hoses, pump seal. No air leaks found. Could it be the head gasket?
2019 Honda Click 125i
Yuminashi 164cc bore kit w/150 head
32mm throttle body and intake
13.5° SpeedTuner variator
15gr Dr. Pulley sliders
100/80-14(F), 120/80-14(R) Pirelli Angel Scooters
YSS front fork kit, YSS G-Series rear shock
Yuminashi 164cc bore kit w/150 head
32mm throttle body and intake
13.5° SpeedTuner variator
15gr Dr. Pulley sliders
100/80-14(F), 120/80-14(R) Pirelli Angel Scooters
YSS front fork kit, YSS G-Series rear shock
- power-full
- Regular User
- Posts: 271
- Joined: Sat Jan 21, 2017 6:42 am
- Year: 2010
- Color: preta
- Location: paio pires seixal portugal
Re: Pcx Yuminashi Chainsaw 164!
I have a new kit at home... because my kit already has more than 59 thousand km on it... but before assembling it I'm going to have it rectified as I can already see that Yuminashi fails a lot in this part
https://www.facebook.com/sergiofininho
Pcx powerfull kit yuminashi 168cc
93000km 23.03.2022 dont stop..
Pcx powerfull kit yuminashi 168cc
93000km 23.03.2022 dont stop..