849tiger gave you all the info you need.the 4 girdle bolts get tightened last,otherwise the head bolts on just like the oem.
contact tbm for further info.
the crank case cleanup referred to by wiseco is a boring cut of the top 1/2 case for the piston skirts to clear when at bottom dead center. it has nothing to do with the crankshaft.
550 cranks and seals are not bulletproof .the front bearing takes a beating so at least replace it along with seal...
both cooling lines from pump go to exhaust manifold.all cooling water comes out of the top of head on carb side.one line goes to exhaust,one line goes to pisser.if still too much pressure you can add a 3rd outlet on head for a second pisser.
looks like the front piston is a left over from when they ran a goki reed adapter on the cylinder.the holes will also work with the case induction setup but both pistons should be the same.
the fingers cut in the cylinder on the intake side feed from the 2 holes almost like a boost port,
it...
went back to check it closer.seems the edge (1/8" or so)near or immersed in water is slightly different color due to possible water migration.gonna call rep and find out.
was at a norandex branch and noticed a display that demonstrates the OSI pro-foam.
it's a one part closed cell foam that seems a bit springy once dry,low expansion pressure and holds back water. the display was using this foam to form a cork on top of a small container filled with water.shook it...
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