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#1
03-16-2008
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old yamaha scooter
Picked up an old scooter for riding around my hood and possible customization later. Its a yamaha, i dont know much about it except its got oil injection. I got it running after finding out the float needle was stuck. Is there anyway to know the injection pump is actually working or should i just plug all the lines and mix the oil and gas myself? years ago i had a dt100 that had oil injection and piston siezed, was told the oil injection was most likely the problem.
scooter looks like this: 
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#2
03-16-2008
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That is just like the one I learned to ride on when I was 6 or 7. I would plug the lines to the injector and mix it my self if I was you.
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#3
03-16-2008
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Quote:
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#4
03-16-2008
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we had a premixer on our outboard moter and decided to disconnect it becasue we would rather know for sure that moter was geting oil.
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#5
03-16-2008
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On some motors the crank bearings are lubed by the pump. My Can-Am was like that.
You might want to check on that first. If possible, and if the oil line is clear or transparent, pull it off where it comes out of the pump just enough to get a small air bubble in the line. Re-attach the line and start the bike. Watch to see if the air bubble moves. If it does, the pump is working.
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When my ol' lady said she was gonna blow this town, I thought she meant she was leaving
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#6
03-17-2008
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Quote:
also, the engine does have oil in it, little fill plug. im guessing for the trans
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#7
03-19-2008
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the pump was froze open on an old kawasaki i fixed up for my son and it would foul plugs while he was puttin around so i routed the line from the pump back to the oil tank instead of the carb and mixed the gas. that way the pump was still oiling the lower end
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