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Post by scoot08 on Apr 16, 2015 15:07:31 GMT -5
Hi every body,got a little problem I've been experimenting with roller whts. I was having what I thought was clutch chatter but discovered it was flat spots on the rollers.so I replaced the 12 grm. rollers with new ones and the problem went away,for about a week but they too developed flat spots.so I went to new 13 grm. rollers as I said I'm experimenting with the whts. as I inspected the 12's I took out they too had flat spots.so I went ahead and replaced them with the new 13 grm. rollers ,and again the 13's worked just fine but now they too are chattering .now I'm running a Dr pulley variator with out any of the spacers that come with the kit. I've ran it both ways with and without the spacer doesn't seem to make much difference .and I've been using rollers instead of sliders to dial in the variator just because their cheaper but once I get the right combo I'll order the correct sliders .I'm beginning to think it may be the Dr pulley variator maybe it just doesn't like rollers and sliders may be the answer .I seem to remember a thread a few weeks ago that mentioned having some of the same problems, I.E. wearing out the rollers. I maybe wrong about that I just can't remember (old age) I've heard of guys adding just a tiny bit of graphite to the variator ramps when using slider (any views on that idea?)I don't think it would be a good idea on the rollers as you want them to roll not slide, any way that's what I'm dealing with any suggestions ? thanks in advance. and remember ride shinny side up and rubber side down.(lol)
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Post by scooter on Apr 16, 2015 17:05:15 GMT -5
Hi every body,got a little problem I've been experimenting with roller whts. I was having what I thought was clutch chatter but discovered it was flat spots on the rollers.so I replaced the 12 grm. rollers with new ones and the problem went away,for about a week but they too developed flat spots.so I went to new 13 grm. rollers as I said I'm experimenting with the whts. as I inspected the 12's I took out they too had flat spots.so I went ahead and replaced them with the new 13 grm. rollers ,and again the 13's worked just fine but now they too are chattering .now I'm running a Dr pulley variator with out any of the spacers that come with the kit. I've ran it both ways with and without the spacer doesn't seem to make much difference .and I've been using rollers instead of sliders to dial in the variator just because their cheaper but once I get the right combo I'll order the correct sliders .I'm beginning to think it may be the Dr pulley variator maybe it just doesn't like rollers and sliders may be the answer .I seem to remember a thread a few weeks ago that mentioned having some of the same problems, I.E. wearing out the rollers. I maybe wrong about that I just can't remember (old age) I've heard of guys adding just a tiny bit of graphite to the variator ramps when using slider (any views on that idea?)I don't think it would be a good idea on the rollers as you want them to roll not slide, any way that's what I'm dealing with any suggestions ? thanks in advance. and remember ride shinny side up and rubber side down.(lol) I don't know what makes the rollers wear out fast like that, but it may be because the boss is loose in the variator hub. Have you checked to see if the variator parts sit tight on the boss, or if they have room to wobble around? |
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Post by geh3333 on Apr 16, 2015 18:11:44 GMT -5
Our pal , rcq had issues with his Dr pulley recently. The Dr pulley if I recall correctly even tore his sliders up. I know he switched out the back plate with a stock back plate, and I think that solved that problem.
I'm curious , what are your top rpms with the Dr pulley ?
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Freshman Rider
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Post by scoot08 on Apr 17, 2015 12:03:18 GMT -5
I haven't checked for the wobble you asked about but the whole varitor isn't that old.it seemed to be right the last time I had it off but I'll check it out.thanks for the suggestion
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Post by scoot08 on Apr 17, 2015 12:43:05 GMT -5
I just finished installing a new instrument cluster with a tack.my scooter didn't come with one from the factory so I haven't really had time to see the rpms. at the top end. I've been more focust on the roller wear than any thing else.but when I get time I'll check it out and let you know. ?tion doesn't the wht. of the rollers determine the top end speed with heaver rollers making it faster off the line but lowering the top end?or do I have it backwards that lighter rollers determine the top end? just want to be going in the right direction what I want is fast take off.I'm not so concerned with high top end as I do most of my riding between 25 and 40 mph. later
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Post by scooter on Apr 17, 2015 16:33:41 GMT -5
I just finished installing a new instrument cluster with a tack.my scooter didn't come with one from the factory so I haven't really had time to see the rpms. at the top end. I've been more focust on the roller wear than any thing else.but when I get time I'll check it out and let you know. ?tion doesn't the wht. of the rollers determine the top end speed with heaver rollers making it faster off the line but lowering the top end?or do I have it backwards that lighter rollers determine the top end? just want to be going in the right direction what I want is fast take off.I'm not so concerned with high top end as I do most of my riding between 25 and 40 mph. later As long as they close your variator pulleys all the way, the weight won't matter much to top speed, but they may make the bike rev higher at whatever speed you are going. Lighter weights will give you faster acceleration. You can buy a cheap tach on ebay for about $15, that wraps around the spark plug wire, for tuning purposes. I like to hit top speed at about 7,500 RPM on a 150cc gy6 engine. It's nice to have at least a couple of sets to try them out and see what you like. They can give you an idea of the extreme ends of the spectrum. You can have, for instance, a set of nines and a set of fourteens, and mixing them, by using three 9s and 3 14s will give you a set of eleven point fives as well. Then you can see where to go from there. I have a half a dozen sets for all kinds of variations. |
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Post by geh3333 on Apr 17, 2015 17:45:42 GMT -5
Just be careful mixing weights that are too far apart. For instance the furthest apart I will mix is let's say 9's and 11's to make 10 grams. 2 grams apart is the limit for me, Anymore than that and I really don't think the variator will run as smooth.
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