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Compression

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I did find that both intake valves are leaking around the valve seats so now it's time for some head work as well

How did you find it was leaking there? What gauge attachment works best?

My post above has pic out of the manual.

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I found a cool way to do it and it's free you have to pull the head tho. I am pulling it down to re ring it but with the head complete you can pour water into the intake runner and the exhaust runner and look on the cylinder side of the head if it holds water your good if it's like mine the valves need lapping or new valve seats

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I 've checked scooter heads that way before.I've heard of a bit of air pressure applied also,but not really necessary (rubber boot over nozzle) if you see the leak.

Think ill order a motion pro gauge.

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