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#1
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What would be good compression for a 1989 yamaha 250 efi?
owner says he has about 500 hours on it Is there anything else I should look for? |
#2
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I would say 120-125lbs per cylinder. Anything lower than 115lbs is going to be pretty beat. And make sure all six cylinders are all fairly close, say no more than 5% of each other.
BTW, I don't think they made a efi in '89. ![]() Quote:
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#3
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Thanks
for the info |
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