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Post by xx5150x on May 16, 2014 23:00:15 GMT -5
Got this scooter in trade (non running and not knowing any of its history) anyways got it running (changed plug,carb,fuel filter,gas,oil) but it has no power at all.with the rear wheel off the ground it runs fine till redline,but as soon as the wheels on the ground and you try to go it just bogs and shakes(almost like its stuck in high gear) with the cvt cover off first I noticed the clutch bell gets extremely hot after running for only a minute.From what I can see on YouTube videos,there's a gap that closes under throttle where the clutch bell is(I assume this is for the clutch opening) on mine there's no gap at all?havent got a chance to get an impact to take the clutch apart heres a link to the video and pic (if I didn't add it right) s254.photobucket.com/user/laura9479/media/Mobile%20Uploads/image.jpg.html?filters[user]=62349270&filters[recent]=1&sort=1&o=0![]() |
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Post by wilds on May 17, 2014 1:55:56 GMT -5
I don't think the clutch is wrong. It's the variator!
The belt is riding too high on the variator, it's not opening and closing as it should. You need to take it apart and check the weights
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CVT problem?
by: geh3333 - May 17, 2014 6:36:31 GMT -5
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Post by geh3333 on May 17, 2014 6:36:31 GMT -5
Wow, the belt should be down in the variator and the clutch should be closed with the belt riding at the top of the pulley while at idle .i agree that there is probably something wrong with the variator , like an out of place weight .
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Post by tvnacman on May 17, 2014 7:40:45 GMT -5
I agree the problem is in the variator .
John
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Sophomore Rider
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Post by phssthpok on May 17, 2014 10:20:14 GMT -5
I'll agree that the primary issue is probably with the variator*, I'm willing to bet that, based on the heat discoloration on the clutch bell, the clutch pads (and possibly the bell itself) are now glazed beyond serviceability.
*I'm noting however, that with the wheel in contact with the ground, the clutch is unable to spin preventing us from seeing whether or not the clutch/variator even attempt to open/close. Perhaps you could film another short clip with the scoot up on the center stand for better analysis.
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New Rider
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CVT problem?
by: xx5150x - May 17, 2014 12:34:36 GMT -5
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Post by xx5150x on May 17, 2014 12:34:36 GMT -5
Thanks all for the replies. I'll try to get another video up a little later
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Post by alleyoop on May 17, 2014 12:58:47 GMT -5
You need to take the Variator off and check the Weights and Plastic Guides and when you do take the Variator off the Clutch Pulley should close and the belt should be near the top edge in the Clutch Pulley. So motor not running it should look something like this: Alleyoop  |
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New Rider
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Joined: May 16, 2014 11:24:48 GMT -5
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CVT problem?
by: xx5150x - May 19, 2014 0:00:03 GMT -5
via mobile
Post by xx5150x on May 19, 2014 0:00:03 GMT -5
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Post by alleyoop on May 19, 2014 0:15:03 GMT -5
Yep it is either the Variator and or the Clutch But I would bet it is the Variator that is stuck in the closed position and not retracting to let the belt drop down in the variator. Take the Variator off and as soon as you do that hopefulley the clutch will close and the belt will be near the edge of the pulley like my picture.
So do not bother with any more videos we already see the problem now it is up to you to see what is wrong with the Variator and or Clutch. You can take pictures of the Variator in case it is trashed.
Alleyoop
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CVT problem?
by: urbanmadness - May 19, 2014 12:11:34 GMT -5
Post by urbanmadness on May 19, 2014 12:11:34 GMT -5
I'm betting a roller wieght has fallen out of position. Provided it hasn't run like that for two long, the variator faces aren't scored up, or the clutch isn't glazed and the wieghs are seviceable, it may be a simple as pulling it apart and putting it back together correctly.
Believe it or not, it would cuase what's he's describing too. With the varitor, closed up like that, it's going to spin the clutch faster, and that's going to at least partially engage it. When trying to ride it, it will act like a car trying to take off in 4th gear...
The question is of course, why did it happen in the first place... either the bike was dumped and it jarred the weights, a new belt was installed, and the variator was allowed to "relax" letting a wieght fall out, or the weights are worn.
inspect the weights, make sure there are not excessive flat spots.... if there are, replace 'em.
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Post by JerryScript on May 19, 2014 14:03:21 GMT -5
Kinda looks like the contra spring isn't working at all in that video. The clutch pulley doesn't appear have any side to side movement even when there is apparent slack in the belt, but the variator did seem to have some movement of the belt up and down.
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..BAD TO THE BONE..
