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Post by mself52 on Sept 14, 2012 13:06:24 GMT -5
K so I got a 115mm variator and checked both my stock face plate and new variator my problem seems to be with my 105mm variator and stock rollers I was doing 52 on flats at about 8k rpm now with the new variator and 14g sliders I'm barely pulling 50 on flats and rpms barely 6k even on a steep downhill I only got to 58mph with less then 7500rpm stock I was able to get 64mph downhill with 9400rpm so I also have some 12g rollers but I'm lost is that what I should do or get something different
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Post by richardthescooter1 on Sept 14, 2012 18:40:32 GMT -5
I have a 250cc roketa scooter, a friend told me I could go with 12g sliders or 14g rollers. what is your cc's?
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Post by mself52 on Sept 14, 2012 18:56:59 GMT -5
150cc and I have 14g sliders in there on flats I cruise at 55mph but only 6k rpm and that's wot
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Post by orphansoul on Sept 14, 2012 21:01:52 GMT -5
It sounds like the 14g weights you put in are too heavy. If you are topping out at 6k right now, you need to go down about 3gs. (each gram down will raise the rpms by about 500) until youre closer to 7500 rpms and see how it drives. The motor makes max power at 7500 so thats what you should shoot for.
Once you find the right roller weight you can try a gram heavier in sliders, and it should run a bit better than with the rollers.
Also worth mentioning, you should not rev your engine above 8000 for any length of time if you want it to last you any amount of time.
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Post by mself52 on Sept 14, 2012 22:11:31 GMT -5
Thanks for help I also noticed when swapping the 14g sliders to 12g rollers that my new gates power link Kevlar belt which is 842 isn't going to the edge of the variator I still have 7.58mm of variator left
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Post by greywolf187 on Sept 15, 2012 8:46:46 GMT -5
OK on a new belt it won't got to the top, so your going to lose some top end. nothing you can do about that. the belt need to wear in to go any higher.  I had the same problem that you do. this is what I did. I went with 12g slider and 15g rollers. 3 of each. the 12g slider for the take off and the 15g rollers for top end. now I've got a real nice quick take off and I still keep the top end RPM. ;D as it was explained to me.  the lighter you go on the weights is for the take off. so if you use 12g's or lower you will get the fast belt engagement. that means you twist the throttle and you go NOW. BUT you lose top end. the more weight you have in it the better your top end. I would say start at about 14g or 15g for a start point and try that out for your top end/RPM. when messing with the variator and the rollers/slider it become a balancing act. if I take this away do I add here. and the answer is??? try it and find out. the reason that I can say this is that as soon as I got my shiny new variator I tossed the old one in the trash with all the parts in it. so then I had to figure out how to get back to were I was. now after messing with it for weeks this is what I found out. MOST GY6 150cc motors come with either 14g or 15g rollers. it's what they have in the bin at the moment. now you have to start splitting the difference to get the best take off and keep the top end. also all the other guys that have posted here are right in what they say too and I won't repeat them. so take all this info in and think it through. the variator are one of the easiest thing to mess up and to fix. just take your time and test drive it after every change for about 1 mile at least, (some people say 5 to 10 miles) I think one will give you a good Idea if you hit your mark. |
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Post by orphansoul on Sept 15, 2012 13:13:04 GMT -5
Thanks for help I also noticed when swapping the 14g sliders to 12g rollers that my new gates power link Kevlar belt which is 842 isn't going to the edge of the variator I still have 7.58mm of variator left I just realized you said 14g sliders. Thats equivalent to putting in 13g rollers. Going from 12 to 13 should not have slowed you down that much. (where the 12gs the stock weight?) It could be the ramps in your variator are not agreeing with the sliders. I have heard of that before in some of the "racing" variators out there. It could also be that the 115mm variator you put in is for some reason heavier than the stock one was. A stock motor should be hitting around 7500 rpms, at least, with 12g or 13g sliders. You may want to compare your new variators weight to the old one. |
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Post by mself52 on Sept 15, 2012 16:09:54 GMT -5
well now i have a new problem.... i took the sliders out and put in the 12g rollers it was awesome i was hitting 57mph in very short flat distance went less then 2 miles and had to slow down for a red light.... after the light turned green i turn the throttle to go and the scooter dies like it ran out of gas....it cranked right back up and when i rev'd it died again...tried 10 times same result seems like as soon as it should start rolling the engine dies... i took off the cvt cover and the clutch isnt engaging... ever had this happen or know whats up? im at work after pushing my scooter for 2.6miles back home and stressing out on whats wrong with it to fix tonight need any ideas....
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Post by tvnacman on Sept 15, 2012 20:08:37 GMT -5
Have you adjusted the valves yet ? I would adjust the valves for piece of mind . Then check for vacuume leaks then move on to the internals of the carb .
John
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Post by mself52 on Sept 15, 2012 20:37:00 GMT -5
yeah i did the valve 2 weeks ago when we talked set for .003 intake and .004 exhaust that was my cranking problem before now it always cranks first try just when i give throttle soon as it his 2400rpm it dies
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Post by mself52 on Sept 15, 2012 20:38:11 GMT -5
and I've taken the carb of about 6 days ago and it was spotless but I'll check for debris like you said
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Post by tvnacman on Sept 15, 2012 21:02:09 GMT -5
sometimes the valve adjustment goes out , I would recheck them just to rule that out . Its one of the easer things to check .
John
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Post by mself52 on Sept 16, 2012 8:04:35 GMT -5
Video was taken with right hand while I throttle left hand so I apologize in advance....the start is idle around 1800rpm and it cuts off at around 2400rpm
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Post by mself52 on Sept 16, 2012 14:40:08 GMT -5
should work now
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Post by greywolf187 on Sept 16, 2012 20:55:25 GMT -5
seem to be in gauged all the time
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Post by mself52 on Sept 16, 2012 21:36:03 GMT -5
The clutch ?
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Post by mself52 on Sept 18, 2012 0:02:41 GMT -5
Thanks john it was the vaccum hoses!
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Post by tvnacman on Sept 18, 2012 4:54:58 GMT -5
Thanks john it was the vaccum hoses! so everything is running good again GREAT!!!!!!!!!!! John |
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