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Post by brokescoot on May 30, 2014 12:34:57 GMT -5
Smoke is coming out of the breather tube looks white smoke, its good amount of smoke too enough to fill the under seat area and seep out from under the seat when closed!
Is this the piston rings?oil level is not too full.many of miles are on rings like 8500 miles
I seen blowby past both rings when I last had engine apart 1 week ago to clean piston grooves.
It runs fine despite the smoke coming out t he breather tube!~
My question is what makes smoke pour out of the valve cover breather tube
Thanks
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Post by brokescoot on May 12, 2014 13:04:31 GMT -5
OK so... I put brand new clutch on the bike 4 stroke chinese 50cc scooter. Rode one time so far with it on the bike... Clutch locked up and made grinding sound metal on metal noise still rolled but barely... The clutch Nut is tight. I disassembled the clutch today and, seemed the inner pulley bar rollers bearing is broken or something metal fragment noises when I spin bearings bars !!!!! I cleaned out best as possible and put grease on it and is making a broken (inner-clutch pulley rod bearing) sound still, but the rear wheel is rotating now at least... My question is... Do these clutches come with that bearing already greased, and does that bearing even require grease?? Also is it even possible to change that bearing or no www.monsterscooterparts.com/qmb139-clutch.html ? Thanks ^the bottom bearing where pulleys are^ |
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Post by brokescoot on Apr 27, 2014 19:38:53 GMT -5
ok so what about the gasket maker? can I RTV blue gasket maker on the valve cover and in place of the head gasket also what about the base gasket??
What do these engine run @ fahrenheit wise?
compression seems decent guess I need psi tester to know for sure
cool
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Post by brokescoot on Apr 27, 2014 18:56:18 GMT -5
139qmb 50cc scooter handlebars are snapped at left side weld what is this frame made of cheap trimoly? or hi-tensile? where can i buy new handlebars I cant find any online that match the pair on it maybe some jbweld or quick steel  Or maybe build a chromoly main frame handlebars forks shocks bolts... and all Where are chromoly frames @ .] |
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Post by brokescoot on Apr 27, 2014 18:00:17 GMT -5
139qmb handlebar are snapped weld what is this frame made of cheap trimoly? or hi-tensile?
where can I buy new handlebars I cant find any online that match the pair on it
maybe some jbweld or quick steel ???LOOLOLOLLOO
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Post by brokescoot on Apr 25, 2014 23:28:41 GMT -5
Are there ways to check for compression without test kit? minus kick starter test compression just sounds weak! \ I installed new oil seals new intake manifold new exhaust gasket, sounds like less compression than before I changed leaking! oil seals...  Also is it OK to use silicone gasket maker in place of the metal head gasket? And gasket maker on the valve cover ? (RTV blue) NO OIL LEAKS anywhere so I'm dumbfounded Thanks much |
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Post by brokescoot on Apr 23, 2014 22:27:15 GMT -5
HA .. like a 50cc 2 stroke is polluting more than a V8 8Dpwned
What a pity that areox is nice
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Post by brokescoot on Apr 23, 2014 21:04:33 GMT -5
Why can none be found in america? Or is there
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Post by brokescoot on Apr 22, 2014 12:17:04 GMT -5
Should metal side of new exhaust gasket go towards the pipe or towards the engine block;/ ? Or does it matter? Thanks I installed it with metal side towards engine..  |
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Post by brokescoot on Apr 21, 2014 15:26:45 GMT -5
Where can i purchase a single 19.8 30 5 oil seal? for not too much cost...
also will a 19.8 30 6 work?
I put new seal on today and I think I got a defective NEW seal because compression is weak but no oil is leaking out of new seal....
I wonder if a worn clutch can affect compression ratio .. compression just sounds weak.
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Post by brokescoot on Apr 16, 2014 22:31:45 GMT -5
Thanks so much
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Post by brokescoot on Apr 16, 2014 22:19:26 GMT -5
What is the left (variator) side oil seal #? For a 139qmb 50cc
17 30 5? or is it 19.8 30 5??
I did not look at the number before I ripped the old one to pieces 
Thanks
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