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Post by lain on Apr 10, 2015 19:44:56 GMT -5
So The other day I removed and replaced the variator slides because they had broke. Now it seems the clutch may have been the culprit all along.
When I am trying to rev up it feels like I am not getting any power until I have gotten some speed up or I am going downhill. I also hear a whining noise come from the CVT area when slowing down and stopping and it feels like I am being slowed down when I hear the whine noise and as soon as the whine noise stops the resistance I feel that feels like it is slowing down the scoot goes away and my wheels move freely. I am thinking something obviously isn't working like it SHOULD.
The clutch seems to spin when moving the back wheel and it is hard to remove from the shaft, I have to pry it off with a screwdriver. Bad clutch bearings?
I have another clutch in my parts bin, practically new. The one I am currently using is the clutch that came with the scoot from the factory way back in 2011. It has 1.5k yellow springs I installed, so I am thinking I will just take the good springs out and put them in my spare clutch.
What do you guys think, bad clutch? I am going to take a look at the cvt again tomorrow, see if there's any other issues, I think the slides broke again because the vibration issue came back when the power issue arose, and I can hear screeching come from the CVT when I accelerate from stop, though that could be the clutch bell because it is smooth.
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Post by scooter on Apr 10, 2015 20:45:07 GMT -5
So The other day I removed and replaced the variator slides because they had broke. Now it seems the clutch may have been the culprit all along. When I am trying to rev up it feels like I am not getting any power until I have gotten some speed up or I am going downhill. I also hear a whining noise come from the CVT area when slowing down and stopping and it feels like I am being slowed down when I hear the whine noise and as soon as the whine noise stops the resistance I feel that feels like it is slowing down the scoot goes away and my wheels move freely. I am thinking something obviously isn't working like it SHOULD. The clutch seems to spin when moving the back wheel and it is hard to remove from the shaft, I have to pry it off with a screwdriver. Bad clutch bearings? I have another clutch in my parts bin, practically new. The one I am currently using is the clutch that came with the scoot from the factory way back in 2011. It has 1.5k yellow springs I installed, so I am thinking I will just take the good springs out and put them in my spare clutch. What do you guys think, bad clutch? I am going to take a look at the cvt again tomorrow, see if there's any other issues, I think the slides broke again because the vibration issue came back when the power issue arose, and I can hear screeching come from the CVT when I accelerate from stop, though that could be the clutch bell because it is smooth. I had bad vibration from a clutch with pieces of one of the inner pads broken off. You could really feel it when you got up around 60mph. It was out of balance of course, and a new clutch did the trick. |
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Post by lain on Apr 10, 2015 22:00:00 GMT -5
So The other day I removed and replaced the variator slides because they had broke. Now it seems the clutch may have been the culprit all along. When I am trying to rev up it feels like I am not getting any power until I have gotten some speed up or I am going downhill. I also hear a whining noise come from the CVT area when slowing down and stopping and it feels like I am being slowed down when I hear the whine noise and as soon as the whine noise stops the resistance I feel that feels like it is slowing down the scoot goes away and my wheels move freely. I am thinking something obviously isn't working like it SHOULD. The clutch seems to spin when moving the back wheel and it is hard to remove from the shaft, I have to pry it off with a screwdriver. Bad clutch bearings? I have another clutch in my parts bin, practically new. The one I am currently using is the clutch that came with the scoot from the factory way back in 2011. It has 1.5k yellow springs I installed, so I am thinking I will just take the good springs out and put them in my spare clutch. What do you guys think, bad clutch? I am going to take a look at the cvt again tomorrow, see if there's any other issues, I think the slides broke again because the vibration issue came back when the power issue arose, and I can hear screeching come from the CVT when I accelerate from stop, though that could be the clutch bell because it is smooth. I had bad vibration from a clutch with pieces of one of the inner pads broken off. You could really feel it when you got up around 60mph. It was out of balance of course, and a new clutch did the trick. Well I feel the vibration at all ranges, but when maintaining a speed for longer than a few seconds it stops vibrating and picks up leaving me to believe that it does work, just not properly. But maintaining any speed for longer than a few seconds is hard in the city, mostly stop and go with some stretches of pavement here and there. |
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Post by scooter on Apr 11, 2015 4:57:05 GMT -5
I had bad vibration from a clutch with pieces of one of the inner pads broken off. You could really feel it when you got up around 60mph. It was out of balance of course, and a new clutch did the trick. Well I feel the vibration at all ranges, but when maintaining a speed for longer than a few seconds it stops vibrating and picks up leaving me to believe that it does work, just not properly. But maintaining any speed for longer than a few seconds is hard in the city, mostly stop and go with some stretches of pavement here and there. As I recall my bike also went through a vibration at low speed then smoothed out until I got to high speed. It's definitely worth pulling the clutch apart for a look. |
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Post by geh3333 on Apr 11, 2015 6:27:02 GMT -5
I def think bad clutch bearings . you should not have to pry it off the shaft , and the only thing that is in contact with the shaft are the bearings. That's probably why the v-slides broke also. If you have broken v-slides , its usually always caused by something in he cvt not working properly.
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Post by lain on Apr 11, 2015 8:26:12 GMT -5
I def think bad clutch bearings . you should not have to pry it off the shaft , and the only thing that is in contact with the shaft are the bearings. That's probably why the v-slides broke also. If you have broken v-slides , its usually always caused by something in he cvt not working properly. Yeah, that's what I was thinking too. I'm just going to pull the old clutch, and take my springs off it and put them on the other clutch. My other clutch has perfectly new looking bearings, I never ended up using this clutch way back because I could not get the nut off haha. But I ended up removing the nut last night after banging on a vice grip that was holding the nut for an hour(perserverance lol)! I'm going to compare all the pieces of the broken one next to all the pieces of the working one and see if I can figure out what went wrong before I put them back together. |
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Post by jerseyboy on Apr 11, 2015 9:05:16 GMT -5
Thats why the roller bearing need to be greased every 2k miles or so,,to prevent this,,the clutch will last a long time if you clean and grease that area once in a while.
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Post by lain on Apr 11, 2015 9:47:22 GMT -5
Thats why the roller bearing need to be greased every 2k miles or so,,to prevent this,,the clutch will last a long time if you clean and grease that area once in a while. Which parts should I grease? I thought everything in the CVT ran dry? Like just put grease on the part of the bearings that make contact with the shaft, or try to work it into the bearings themselves? How do I remove bearings from the clutch? EDIT: Reading a gy6 manual I just found that has more about the clutch I see I need to grease between the bearings and the clutch, but I do not have a bearing puller. Any way to do this without the tool and without damaging the parts? |
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Post by jerseyboy on Apr 11, 2015 11:28:29 GMT -5
I just pull the whole clutch assembly off the shaft it should slide off real easy if it still has any grease left...then just clean the roller bearings real good with brake cleaner and a rag,there is also two pins between the pulleys that slide as the pulleys close and open,,hit those with a light dab of grease too...the roller bearing should feel smooth when you roll it with your fingers,,no need to remove the bearing from the clutch housing,,just hammer it real good with cleaner,dry with a rag and re grease with good red tacky high temp grease like Lucas,,even a good blue marine grease will suffice.You will be surprised how much smoother the CVT will feel after this.I went 2K km after I greased mine last time and it still had some grease left in it,,so I recommend doing this every 2K miles or so...also good idea to deglaze the inside of the bell with some 180g sand paper.
Hope that helps...
EDIT-Also the little brass or steel bushing that rides inside the variator face should be cleaned and very lightly greased at this time to(dont put much at all just enough to coat the bushing)..mine looks brand new and been doing this for 3 years now..its also nice and tight!
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