Question about Aermacchi Sprint 350 Motorcycles

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I have a 1978 ss175 I bought from someone that had bought it brand new and had never cranked it.I took it to a friend of mine who has a motorcycle mechanic shop.He cleaned carb. put new spark plug. He also changed outer crank seal because he noticed it was sucking air.The bike runs great but it can be very hard to start.Steve

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If the outer seal was replaced because it was defective, was the inner seal replaced too? The inner seal may be pulling air during start up. Compression is what psi and is it within specs?

Posted on Nov 07, 2010

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