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Post by pgs on Jun 9, 2014 17:40:23 GMT -5
i am having a problem with my scooter bogging at take off it really struggles for for a quite few seconds before taking off it only happens after it has been driven 4 or 5 miles and it is warmed up, does not happen first few miles . when it bogs down it takes about 20 seconds before it kicks in and takes off and runs fine all the way to full throttle. i just recently replaced ring on the bbk kit i installed last year i also replaced the open air filter that was on with the stock air box, this was done before this started happening could it be the air box is to restrictive,but i thought that it would do it all the time when i replaced the ring i used all new gaskets and re-torqued everything after warming up doesn't seem like any leaks and compression seems fine, the variator is fairly new only around 400 miles the belt has less than that on it, the clutch is the original not sure what a clutch slipping on scooter would cause the same symptom
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Post by 90GTVert on Jun 10, 2014 5:41:38 GMT -5
I would check the clutch out first. Could be that the springs are worn out and fade too much once hot. If the clutch slipped it wouldn't sound like a bog, but would rev higher than usual.
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Post by pgs on Jun 10, 2014 16:04:59 GMT -5
I would check the clutch out first. Could be that the springs are worn out and fade too much once hot. If the clutch slipped it wouldn't sound like a bog, but would rev higher than usual. no it is like it looses all power for 20 seconds and then surges and will take off and runs like it should it only does it after coming to full stop not if i slow down, i can slow down to few miles an hour and it doesn't happen |
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Post by 90GTVert on Jun 10, 2014 17:26:50 GMT -5
If you just slow down you prob aren't even making the clutch work. Once you're moving a little the clutch is usually engaged and won't disengage till you're pretty much stopped. That makes it sound even more like a clutch issue. If it were a mixture/restriction issue it should perform poorly under more than just these specific conditions.
I think it's time to pull the CVT cover off and first see if the belt appears to be in a normal position. If so, I'd look at the clutch and probably plan on replacing the clutch springs. Since you've taken care of the belt and variator it wouldn't be a bad idea to clean and re-grease the torque driver as well.
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geo49
Scoot Member
Posts: 57
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Post by geo49 on Jun 12, 2014 10:08:22 GMT -5
Check the width of they old belt to the new belt.
Mite be the new belt is wider and when the variator heats up the belt mite not be going all the way back down.
You can try your old belt to see if it corrects the problem.
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Post by pgs on Jun 14, 2014 11:03:29 GMT -5
will check it out now that it has stopped raining here
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Post by pgs on Jun 14, 2014 12:01:30 GMT -5
Check the width of they old belt to the new belt. Mite be the new belt is wider and when the variator heats up the belt mite not be going all the way back down. You can try your old belt to see if it corrects the problem. i have had that issue in the past with the belt and stick with the brand that came with it, always runs good with those |
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geo49
Scoot Member
Posts: 57
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Post by geo49 on Jun 14, 2014 12:18:13 GMT -5
You still running that 792x16.6 belt?
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Post by pgs on Jun 18, 2014 20:14:02 GMT -5
You still running that 792x16.6 belt? yes i am mitsubishi from get them from John |
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Post by pgs on Jun 18, 2014 20:19:24 GMT -5
If you just slow down you prob aren't even making the clutch work. Once you're moving a little the clutch is usually engaged and won't disengage till you're pretty much stopped. That makes it sound even more like a clutch issue. If it were a mixture/restriction issue it should perform poorly under more than just these specific conditions. I think it's time to pull the CVT cover off and first see if the belt appears to be in a normal position. If so, I'd look at the clutch and probably plan on replacing the clutch springs. Since you've taken care of the belt and variator it wouldn't be a bad idea to clean and re-grease the torque driver as well. checked the clutch and seems ok but the primary drive shaft seems very loud if i spin the tire also a lot of play if i ride it with out my helmet i can hear it not sure if that would cause the issue but definitely need to replace that or the bearing |
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Post by 90GTVert on Jun 19, 2014 7:13:31 GMT -5
My PDS bearing got quite loud and it never really did anything to performance. It should be replaced, but if it's doesn't feel like there's additional drag then it's probably not the cause.
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Post by pgs on Jun 20, 2014 16:12:06 GMT -5
My PDS bearing got quite loud and it never really did anything to performance. It should be replaced, but if it's doesn't feel like there's additional drag then it's probably not the cause. where can i get a replacement bearing for it couldn't find any on the searches i did for it |
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Post by 90GTVert on Jun 21, 2014 11:56:14 GMT -5
Long case should use a 6203 bearing. If you search the bearing number instead of looking for it by description etc... you should see plenty of options. I would suggest going with a non-Chinese brand... SKF, NTN, Nachi, FAG, and so on.
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Post by pgs on Jun 22, 2014 10:42:03 GMT -5
Long case should use a 6203 bearing. If you search the bearing number instead of looking for it by description etc... you should see plenty of options. I would suggest going with a non-Chinese brand... SKF, NTN, Nachi, FAG, and so on. thanks for the info made things much easier to find |
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rexxk
Scoot Member
Posts: 65 
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Post by rexxk on Jun 22, 2014 17:01:26 GMT -5
did it happen after you changed the air filter?
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