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Post by rowenj on Jun 25, 2013 16:57:26 GMT -5
i bought a used zip r31 couple days ago and its leaving a trail of white smoke form the exhaust and the engine or cvt is making a really loud noise Attachments:
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Post by sailracer on Jun 25, 2013 17:57:00 GMT -5
Is that a 4 stroke QJ-QMB139? If it is, theres a bearing in the back of the cvt cover. chances are, that's the noise. The smoke? is it burning oil?
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Post by rowenj on Jun 25, 2013 17:59:20 GMT -5
Is that a 4 stroke QJ-QMB139? 2 stroke |
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Post by sailracer on Jun 25, 2013 18:02:43 GMT -5
[replyingto=rowenj]rowenj[/replyingto]I would still check for that bearing. vento used those quinggjang motors The bearing was actually outside the clutch, and the cvt cover is the housing.
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Post by rowenj on Jun 25, 2013 18:26:26 GMT -5
iphone video:
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Post by sailracer on Jun 25, 2013 18:42:55 GMT -5
sounds almost like starter clutch remove the cover and inspect.
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Post by rowenj on Jun 25, 2013 18:57:15 GMT -5
i don't see anything broken Attachments:
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Post by rowenj on Jun 25, 2013 18:59:11 GMT -5
cvt Attachments:
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Post by sailracer on Jun 25, 2013 19:07:14 GMT -5
Ok first, wiggle that little starter gear under the cover with two screws, or remove the cover and look in the little protrusion for a bronze bushing.. a tiny one.
second.you see that little shaft comming off the clutch? on mine, a bearing went on there. see if the cover has a bearing or a place for one. If its missing, that shaft dances around in the cover and makes noise.
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Post by sailracer on Jun 25, 2013 19:10:03 GMT -5
you can also start it with the cover off, and watch and listen. you may see what's jumping around.
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Post by sailracer on Jun 25, 2013 19:16:31 GMT -5
Are you positive it's a 2 stroke? The word cam on the scoot puzzles me. 2 strokes have no cam
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Post by rowenj on Jun 25, 2013 19:31:49 GMT -5
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Post by rowenj on Jun 25, 2013 19:34:54 GMT -5
theres no battery so only kickstart
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Post by sailracer on Jun 25, 2013 19:41:55 GMT -5
Wow, i had the same scooter- baja sc50 4 stroke though.but check for that bearing in the cover
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Post by rowenj on Jun 25, 2013 20:07:28 GMT -5
so is the engine fine? it's leaving a trail of white smoke from the exhaust and it's really slow
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jet
