Kawi2strokes.com Forum

Took my cylenders off my h2a 750 and I have bridge port cylenders on intake side after market or stock any body know. early h2a 750 1972.

Stock have no bridges on the intake or the exhaust.

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Using a poorly conceived idea along with bad mechanical practice is not an upgrade but rather a recipe for disaster.

You gotta put up pics!

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Twist the throttle, tilt the horizon, and have a great time. What triples are all about...........

the only H2 barrels coming from the factory with bridgeport were H2R barrels

On all street H2's, they used a small tab from the inlet port top, downward, to add to piston ring stability. H2A cylinders never had a full bridge from top to bottom of the inlet port, but, take a close look if there are full bridged inlets, on the sleeve below the base gasket surface, there might be some sort of ident for Los Angeles Sleeve Company. IF those sleeves have a full bridge, that means they most likely have been re-sleeved.

If those end up being h2r cylinders ya should give me a shout rich!! I have a set of h2r heads ya may want..

If they are original series H2R cylinders, they would have a few distinctive features over street bike barrels, full bridges in both the inlet and exhaust sleeves, and each of the inlet and exhaust flange areas would have 4 studs for the inlet manifolds and exhaust pipe flange adapters, shorter cooling fins, exhaust ports on outer cylinders aimed inwards, not outwards. They should also have a special stud pattern, along with special cases with altered stud pattern.

H2r inlet/exhaust

Thanks tone for the info every cylenders I have seen didn't have full bridge this is the only set I have seen so somebody in the 80;s was making new sleeves. I new about the sleeves in la but these are old. this bike hasent been run since the 80;s stock cylenders with repo sleeves with full bridge on both sides cylenders have stock bolt pattern on both sides thank you for the info rich.

any pictures of your barrels