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Post by ricardoguitars on May 16, 2015 17:07:51 GMT -5
I put 10g sliders on my 125cc GY6 scoot and it made take off very hard, I'm trying to achieve better take off and hill climbing, it had 12g sliders before, it performed great on highways, but not so good on take off and terrible on hill climbing with the 12g sliders.
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Post by ramblinman on May 16, 2015 17:28:08 GMT -5
I put 10g sliders on my 125cc GY6 scoot and it made take off very hard, what do you mean by very hard? do you have a tach.? it makes tuning the cvt much easier. it's been awhile since i messed with weights so someone correct me if i'm wrong... every 1 gram will change rpms by about 600 (u may want to research that number, it's been awhile). you want your rpm's near 7,500 for max torque. so by reducing your weights by 2 grams you increased your rpm's by 1200. get a tach imo. |
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Post by ricardoguitars on May 16, 2015 18:14:24 GMT -5
I went back to 12g sliders, and now the belt is not climbing at all  |
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Post by ricardoguitars on May 16, 2015 18:25:51 GMT -5
I put 10g sliders on my 125cc GY6 scoot and it made take off very hard, what do you mean by very hard? do you have a tach.? it makes tuning the cvt much easier. it's been awhile since i messed with weights so someone correct me if i'm wrong... every 1 gram will change rpms by about 600 (u may want to research that number, it's been awhile). you want your rpm's near 7,500 for max torque. so by reducing your weights by 2 grams you increased your rpm's by 1200. get a tach imo. If I twist the throttle nothing happens, not sure if the clutch is not engaging or the variator is stuck  |
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Post by ramblinman on May 16, 2015 18:57:09 GMT -5
I went back to 12g sliders, and now the belt is not climbing at all i can remember how frustrating it was tuning my 50cc cvt. i made so many changes with poor results that i forgot the original set up. if you aren't already start writing down the changes and how it performs. writing down the rpms, weights and contra spring will come in handy if you are trying to tune the cvt. i would dbl check the sliders are seated right and while in there open clutch pulley by hand just to be certain something isn't jammed. |
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Post by ricardoguitars on May 17, 2015 16:59:07 GMT -5
I put a new belt, new clutch, new clutch bell, new variator and put the stock rollers back on; it improved a bit, but moves painfully slow even at WOT. I give up, I don't know what else to do, it makes no sense. |
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Post by geh3333 on May 17, 2015 18:06:06 GMT -5
I put a new belt, new clutch, new clutch bell, new variator and put the stock rollers back on; it improved a bit, but moves painfully slow even at WOT. I give up, I don't know what else to do, it makes no sense. So before going to the ten gram sliders , the scoot seemed to perform good, right ? Except you wanted better takeoff an hill climb. New variator , clutch and belt and still not performing right. Are you sure the variator and the clutch pulley are free of oil and grease ?, Does your engine rev up but not pick up speed or does it seem like the engine is sluggish and not wanting to pick up speed ? |
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Post by geh3333 on May 17, 2015 18:11:54 GMT -5
You just had the bad tranny gasket. Did you get the gears back in ok ? Maybe the gears are being held up . can you take a pick of the CVT and post it ?
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Post by geh3333 on May 17, 2015 18:14:18 GMT -5
You just had the bad tranny gasket. Did you get the gears back in ok ? Maybe the gears are being held up . can you take a pick of the CVT and post it ? Have you check belt climb while the scoot was on the center stand ? Meaning putting the scoot on the center stand with the back wheel off the ground and leave the cgt cover off and give the scoot throttle to see if the belt is rising . |
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Post by ramblinman on May 17, 2015 18:36:54 GMT -5
I put a new belt, new clutch, new clutch bell, new variator and put the stock rollers back on; it improved a bit, but moves painfully slow even at WOT. I give up, I don't know what else to do, it makes no sense. i would try rotating the clutch bell by hand, see if the tire moves and if you feel any resistance. as geh pointed out might be a problem with final gears. |
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Post by ricardoguitars on May 17, 2015 19:07:44 GMT -5
I put everything back as it was before putting the 10g sliders, but the scoot is still not working right, as geh mentioned, the engine is sluggish and not picking up, unless I go downhill or let the rear tire roll free on the center stand, but still not as many rpms as it was before, it hardly makes it to 6k downhill, when it use to go to 7k or 8k on that same hill.
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Post by ricardoguitars on May 17, 2015 19:15:16 GMT -5
Is there any difference on a 50cc clutch and a 125/150cc clutch? I noticed the clutch pads are smaller on the new clutch, the old ones where almost twice the size, the old clutch pads are almost flat, so I believe that might be the problem, the old one not working because it is worn out and the new one not working because of the smaller pads?  |
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Post by geh3333 on May 17, 2015 23:28:36 GMT -5
Is there any difference on a 50cc clutch and a 125/150cc clutch? I noticed the clutch pads are smaller on the new clutch, the old ones where almost twice the size, the old clutch pads are almost flat, so I believe that might be the problem, the old one not working because it is worn out and the new one not working because of the smaller pads? Does it sound like the rpms are high ? If the clutch is slipping , the engine will keep reving higher " rpms will be climbing" . some pads are shaped different . some are not as long but are wider and some are longer but not as wide. I've seen two different style 150cc clutch pads. The size do sent necessarily matter , as long as they are engaging without slipping. And like I said , if it is slipping , you will notice the rpms raising but you will not be going any or much faster. Def try what rambling said about putting the scoot on the center stand and turn the rear wheel to feel of it seems like it is hard to spin . if its hard to spin then something is holding it back . have you tighten the brakes recently ? |
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Post by ricardoguitars on May 18, 2015 10:18:31 GMT -5
Is there any difference on a 50cc clutch and a 125/150cc clutch? I noticed the clutch pads are smaller on the new clutch, the old ones where almost twice the size, the old clutch pads are almost flat, so I believe that might be the problem, the old one not working because it is worn out and the new one not working because of the smaller pads? Does it sound like the rpms are high ? If the clutch is slipping , the engine will keep reving higher " rpms will be climbing" . some pads are shaped different . some are not as long but are wider and some are longer but not as wide. I've seen two different style 150cc clutch pads. The size do sent necessarily matter , as long as they are engaging without slipping. And like I said , if it is slipping , you will notice the rpms raising but you will not be going any or much faster. Def try what rambling said about putting the scoot on the center stand and turn the rear wheel to feel of it seems like it is hard to spin . if its hard to spin then something is holding it back . have you tighten the brakes recently ? The RPMs are low, 4k to 5k. I took the scoot today to a local shop, the shop guy's first guess after I explained the situation is something wrong with the diaphragm, totally different issue, but it makes sense, maybe I just had bad luck and the carb diaphragm failed on the wrong time  |
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Post by ricardoguitars on May 18, 2015 18:18:41 GMT -5
I got a call from the shop, they said the carburetor is busted and had to replace it, it was a cheap fix, but I don't believe the whole carburetor is wrong, maybe it just needed adjustment and they couldn't bother to take the time to fix it, easier and faster to put a brand new one than adjusting the old one.
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