Hi, I have a 701 61x with a o'ringed head and I keep having trouble with the o'rings so I was wondering if I can use gasket with the o'rings installed or do I just need to get a new head?
On the Yamaha like yours its typically the cylinder not the head that is the issue. The sleeves can settle into the aluminum casting thus preventing the head from sealing. Any machine shop should be able to take off just a small amount to get your sealing surface flat.
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