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Yoshimura Camshaft [ST-1M] for GROM (with bore up kit.).
After fitting a 181cc bore up kit the power was all low and middle in the rev range with nothing but slow rising revs up high. I fitted the Yoshimura Camshaft [ST-1M] to help keep the power building in the high range. After fitting the Yoshimura Camshaft [ST-1M] my GROM felt like it could rev more quickly towards the rev limit. Gone was the (rev) wall that my GROM hit just when you needed to rev out quickly to the limiter. The power still flattens out after 7500rpm but it doesn't just stop like with the standard camshaft. Fitting requires some special tools along with basic skills. Standard GROM camshaft has a engine decompression mechanism attached, the Yoshimura camshaft does not, I have found no difference in engine starting without the engine decompression mechanism. The Yoshimura Camshaft [ST-1M] comes with recommended valve clearances and fuelling settings for std. 125cc engines, I have a piggyback fuel injection controller with AFR sensor. From my experience a reputable high lift cam is a must for bore up kits, the Yoshimura Camshaft [ST-1M] suits my riding style while improving my GROMs starting and smoothing it's idle.
As I use it daily up hill and lots of stop and go traffic, I chose the ST-1M. It is easy to install but this cam definitely needs tuning and the stock fuelling is not right. After tuning rides smooth, torque curve is also good. There is no sudden power surge.Only mods chimera short ram intake and TSR slip on pipe. Sprocket ratio 15/33.View Detail
I replaced Camshaft for me for the first time. I decided to install it arbitrarily by reading the Instruction Manual and ordered it. But there is no particular installation Instruction Manual etc. (Numbers of Setup and Data etc are enclosed) Net found another Instruction Manual of Manufacturer and installed it. Especially it was attached in about 2 hours including adjustment without adjustment. I ran enclosed value for enemag and tried running. The impression is Torque, feeling of acceleration is fleshed after a while. But after all it is 125cc of GROM, there is not a feeling of acceleration that the body brings, but the feeling of running is gone as the dull feeling before it gets lost. In this Parts, I felt fun to play and I felt that the pleasures flew up steadily. Afterward, I can not see it, but the degree of self-satisfaction that YOSHIMURACam is included is very high.View Detail
i'm rebuilding my GSX1100E with a lot of yoshimura performance parts and this camshaft is a must have in the engine! very well built and high quality product from YoshimuraView Detail
This cam came well packaged and shipped quickly. It makes noticeable power gains over my old bbr cam, installed on a 2004 crf100f with 120 bbr kit.View Detail
I added this camshaft to my modified 2000 XR100. Big gain!!! Noticible power increse!! Also it revs higher!! The cam fit perfect. Fits stock cam journal, and it fit my aftermarket journal. Engine mods as follows: FmF pipe, ATC200 Carb, 120CC piston, Shift up Head, Shift up oil shower journal,Yoshi cam. I like riding this Modified XR100 more than large cc bikes. Pure fun. It came in a box and a sticker was included. SweetView Detail
As I use it daily up hill and lots of stop and go traffic, I chose the ST-1M. It is easy to install but this cam definitely needs tuning and the stock fuelling is not right. After tuning rides smooth, torque curve is also good. There is no sudden power surge.Only mods chimera short ram intake and TSR slip on pipe. Sprocket ratio 15/33.View Detail
Honda Genuine Part 42601-121-690 fits all my Honda CT110 1996 standard wheel parts (110mm brake). NO modification required, everything fits. My original OEM rear hub was unservicale. So I choose the 42601-121-690 over the 42601-153-600ZA because it is Silver. As a genuine part made in Japan it is of high standard.I like the contrast of the silver hub in the black rim with rays of shiny stainless spokes, thank you Webike Japan.View Detail
The SP Takegawa TC20 fixes all the carburation problems caused by cheap Chinese replacement carburettors. The TC20 appears to be a PC20 with the idle and air mixture screws on the left side of the carburettor body. There is no need for adjustment when fitted to a standard tune CT110, the TC20 is set perfect from the workshop. I tried adjusting it "richer" via mixture (1/2turn) and/or needle position (2nd position) and this gave slight hesitation.The TC20 makes my standard (72xxxkm) CT110 carburate cleanly with all the power available everywhere.Fitting is a easy swap using a pod air filter and basic tools. The standard fairing still fits if one trims the choke lever as depicted. Only drag is the need (must have) for a 2 into 1 fuel cock that can be had from (Kitaco) Webike Japan, of course.I recon this TC20 is the first tuning part one should install even before a performance exhaust, the responce it gives between 50-70kmh is better than the OEM carburettor and removes that mystery roughness from any inferior Chinese OEM copy. Best investment for my CT110!View Detail
My first Aluminum Wide Wheel Rim Kit, I chose SP Takegawa with Takasago EXCEL 17" rims because they look so cool. I used stainless spokes to highlight and contrast the difference between old hub and new rim, OEM(110mm)hub). The SP Takegawa Aluminum Wide Wheel Rim Kit is my only custom ~3000km to photo. Had the SP Takegawa 17" rims professionally laced to my OEM hub. Takasago EXCEL specs say their rims are heaver than OEM steel, you can't feel the difference of the Aluminum Wide Wheel Rim Kit they just feel nice and solid/stiff. My SP Takegawa EXCEL kit with a wider footprint both ends, makes it so much more fun to ride my Honda. Thank you SP Takegawa and Webike Japan.View Detail
The Kitaco SERVICE MANUAL for CRANKCASE is worth it's weight in Gold. The information in it is transferable to ANY horizontal Honda style engine. Printed in Japanese with more than enough English captions, no information is lost. And the information it contains will turn you into a professional if you peruse it enough. Nothing is lost in translation and as usual a picture says a thousand words. I recon this manual should be brought before you waste money on a non-genuine service manual for you horizontal Honda motor. In fact the price of the Kitaco Crankcase and it's other half the Cylinder Head, Cylinder & Piston manual together along with shipping (from WEBIKE JAPAN, of course) will probably be less than a non-genuine manual for your specific engine. I think these manuals will eventually become collectors items. A must have if you "dig" the horizontal engine and it will save you money in the end. Invest now!View Detail
The Hurricane HB0038B handle bar gives my GROM a very road sport style ride position. They allows me to quickly crouch and easily tuck in my elbows when needed. The HB0038's bring the hands to a lower position while moving the body forward and stop my body catching the wind and being buffeted. This position must also move more weight onto the front wheel I recon. Fitment required basic tools and about an hour, get new hand-grips (Webike Japan, when you purchase the bars) don't bother trying to refit the standard GROM hand grips. I use a Honda CB750 clutch cable (from Webike Japan) which is a bit longer and allows smoother bends and gives better clutch pull/feel I recon. You CAN use the standard GROM clutch cable. The Hurricane HB0038 handle bar bend re positions the standard mirrors to give a better field of view for more safe riding in my opinion. These HB0038's replaced HB0039's on my GROM and will be staying on as they are the most comfortable of the two Hurricane "Foward" style bars.View Detail
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