Post by scootn4fun2010 on Mar 11, 2013 21:08:43 GMT -5
I too am running with the Kozo performance variator and 4g sliders, but now thinking I need a little more weight to get back some top end speed. Acceleration is great, but now can get only about 45mph at WOT. I was getting a bit more with the stock variator and rollers, but acceleration was sssllloooowww. Any suggestions? Would a belt and clutch upgrade help too? I'm still new to these small engines. Lol
20mm Carburetor, Amsoil 10w40, upgraded fuel line and filter, Stainless Performance Exhaust, Performance ( orange) CDI and coil, Performance Variator w/ 4g sliders, custom lighting.
Variators do vary in weight. My stock variator weighed more than my current racing variator 115mm from partsforscooters.
I also found that my rpms went DOWN when I upgraded to the 115mm on mine. I got a postage scale and it weighed less too. The overall affect was lower rpms with the same rollers/sliders.
A lower weight variator will have lower rpms.
From the old forum I posted:
Note: I was still breaking in my engine so I was going for heavier rollers/sliders to go faster at lower rpms. I didn't go above a certain rpm then for the break in.
Re: roller/slider weights......post your results h « Reply #212 on May 23, 2012, 5:30pm » -------------------------------------------------------------------------------- I spent some time and wrote down weights of variator parts along with their rollers.
Rollers weighed 12.1 grams Variator main weighed 238.8 grams roller cover weighed 128.7 grams bearing cylinder weighed 108.3 grams Total 547.5 grams The drive plate I didn't think to weigh but its stock.
I had it on with the 10.8 gram rollers and RPM's were way too high 4,000 to move at a stop. I only tested with the cover off. RPM's just seemed too high to me to be reasonable. At 106 miles so 25mph is as fast as I go right now
Had stock variator with 11.8 gram rollers, it was noticeably slower acceleration but cruising 25 even 30mph RPM's stay around 4500 to 5,000 rpm's. So I ran at a little higher speeds due to the lower rpms.
Put on the Racing variator today the variator and 10.8 gram rollers with the bearing weighed 540 grams. Result = WAY TOO HIGH RPM's. I was going 25 mph and RPM's were 6,000 to 6500 RPM's!
So, I weighed my stock set up with the original rollers 10.8 grams. It was 589 grams total. So I kept the Racing variator, put on the heavier variator star cover with 12.8 gram rollers. TOTAL = 560 grams
Result = better acceleration than original set up. Also was going at around 4,500 to 5000 rpm's going 35mph. For my break in I'm concerned with RPM's and not exactly speed.