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Post by scooter on Oct 13, 2014 6:51:25 GMT -5
I had such good results with the Hoca with the 115 mm drive face and 12 gram rollers on my Lance Vintage that I stopped there. Jay Leno is the self declared President of the "More Money than Brains Club" and there comes a point where you are just throwing good money after bad so I will just sit back and watch as others turn their rides into money pits. Remember I got a scoot to save money not spend more. What ever I do has to show a return on the investment and not just a growing loss with a bunch of zeros adding up to the right. Good thinking, Rocky. I must say I'm infatuated with my CVT. I have been reading about them for decades and now I own one! I had no idea they were all around me. Now I've made a hobby out of understanding this particular one and tweaking on it. It's fun knowing that can have extensive modifications done to it for less than I paid for a tank of gas in my truck. |
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Post by xyshannen on Oct 13, 2014 11:32:14 GMT -5
rockynv I have to agree and you were the reason I purchased the Hoca vs the KOSO. It works awesome! The drive belt went right to the top right out of the box with no tweaking needed. Ony mods I'm doing is going to be playing with some roller weights because as you know my engine if far from stock and I want to see how changing the rollers effects it's performance. The ultimate goal tho is to find that sweet spot with the rollers, then upgrade to sliders. One thing that I did notice about the HOCA was after only 20 or so miles, the teflon had completely worn off and a couple of the sliders already had flat spots. I didn't b*tch about it causes seriously I couldn't tell any ill effects in it's performance.
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Post by rockynv on Oct 13, 2014 12:05:07 GMT -5
I just literally threw it in and never looked back. I was at the point that I really didn't want to take it apart again unless it was time for the next belt change. It was shortly after that last repair (it was not just for the sake of more performance the old one had been badly grooved by a cheap kevlar belt) that I traded it in on the Aprilia.
The Piaggio design overcomes one of the greatest deficiencies of the GY6 design in the CVT area in that it has a bearing in the CVT cover to support the outside end of the clutch shaft. With the spacing of the two clutch shaft bearings inside the gear box being so close I truly do not feel that the GY6 supports much over stock horsepower. I am surprised that no one has come out with an extended clutch shaft and CVT machined to hold a bearing to better support the clutch and eliminate wobble at the end of the shaft.
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Post by scooter on Oct 13, 2014 14:58:43 GMT -5
One thing that I did notice about the HOCA was after only 20 or so miles, the teflon had completely worn off and a couple of the sliders already had flat spots. I didn't b*tch about it causes seriously I couldn't tell any ill effects in it's performance. I'd keep an eye on it. My KOSO did the same thing and after a short time the belt shredded and three of the rollers were chewed up down to the metal. Also the bushing was wallowed out in back. |
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Post by alleyoop on Oct 13, 2014 15:23:06 GMT -5
Wow!! Rollers chewed up down to the metal I would think you would have noticed the problem long before that happened no top end whatsoever no weight left to push the variator out to squeeze the belt up the pulley.  It is no wonder the belt got shredded, got to be a little more tentative to checking and inspecting things out. Its a scooter with a motor that can get you killed if not working right.  Alleyoop |
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Post by scooter on Oct 13, 2014 20:07:16 GMT -5
Wow!! Rollers chewed up down to the metal I would think you would have noticed the problem long before that happened no top end whatsoever no weight left to push the variator out to squeeze the belt up the pulley. It is no wonder the belt got shredded, got to be a little more tentative to checking and inspecting things out. Its a scooter with a motor that can get you killed if not working right. Alleyoop It seemed okay. As I mentioned on another thread, the KOSO 115mm variator ran low rpms, which is why I was using 8g rollers, and it vibrated at takeoff, but then had super nice acceleration above 5-10 mph with WOT RPM on acceleration at 5600. I was doing 60mph when the belt fried without warning. (Notes say my top rpm with that setup was 7500ish itistheride.boards.net/post/75114/thread )This all happened in a matter of a few weeks of installing the new variator. Later I noticed the bushing in the variator was wallowed out on the side facing the engine. That may or may not have been the cause of the vibration at start off, or it may have been the result of the vibration at start off. Whatever the case, the motor was struggling to get the bike moving off the line. I had sent off for shims, to widen the variator a little so my belt would start a little lower, easing the strain on the engine and raising my WOT RPM as well, but this happened first:   |
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..BAD TO THE BONE..