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Post by lastchip on Oct 8, 2006 19:36:40 GMT
There is a Sukida 50QT in my family that has a history of bad running and general poor performance. Searching through the threads here, many of the symptoms already explained on other threads, apply to this machine as well. Specifically, poor running - miss-firing, flat spots and also a continuing problem with the charging system failing to work. This is bog standard, ex-factory, so one can't blame de-restricting.
You will all be aware I'm sure, this machine uses the 139QMB engine and I have found the Boatian PDF's invaluable in helping me try to get to the bottom of the problems. Sukida's documentation appears to be non-existent!
At last, I've taken the scooter apart and tested many of the components using information from the manuals, but have come to a stop, as I need to pull the flywheel.
Can anyone please point me toward a suitable flywheel puller for that engine, or know what thread it uses in it's centre boss?
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Post by Macrofeet on Oct 8, 2006 20:09:15 GMT
i paid out £25 for a uni Draper flywheel puller from halfords i think it was
looks like a grabber from an arcade machine but just with 2 arms and a bolt in the middle the arms fit behind the fly wheel and then you tigten the bolt with a spanner or rachet, very easy
a free way would be to drill 2 holes out of some strong metal
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Post by px166bajaj on Oct 8, 2006 20:40:58 GMT
This is a flywheel puller designed to fit Honda 50s and Puch Maxis. The silver bit screws into the central boss on your flywheel and the bolt tightens up onto the end of the shaft, pushing the flywheel off. Simple! I bought this ages ago, but they must still be available, I cant believe the threads would have been changed. Most of these chinese scoots probably use the same thread as a Honda 50.
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Post by px166bajaj on Oct 8, 2006 20:42:27 GMT
Blimey! I really must wipe my microwave! Thats sweet and sour sauce from today's tea!
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Post by lastchip on Oct 8, 2006 21:04:10 GMT
Thanks for the quick responses.
I looked at the universal type pullers and certainly they would probably do the job, although the flywheel (rotor) doesn't look all that substantial, but a puller similar (or perhaps the same) as the Honda 50 above would be ideal.
It seems the 139QBM is a GY6 rip-off, so perhaps that would be a good place to start, but if anyone else has actual experience of pulling a flywheel on a 139QMB, I'd be grateful for your input.
It's just, I didn't want to go and buy something that turned out to be unusable.
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Post by Simar on Oct 9, 2006 17:37:53 GMT
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