Harv Posted November 3, 2007 Share Posted November 3, 2007 I have very small cracks in the intake manifolds on my XS360. It looks like a black coating on the manifolds that is cracked and continue out to the portion that is covered by the clamps.. Do the manifolds need replacing ??. Thanks again Link to comment Share on other sites More sharing options...
Moderator drewpy Posted November 4, 2007 Moderator Share Posted November 4, 2007 I have very small cracks in the intake manifolds on my XS360. It looks like a black coating on the manifolds that is cracked and continue out to the portion that is covered by the clamps.. Do the manifolds need replacing ??. Thanks again they do age and crack. they will need replacing soon, as they will suck in air. Link to comment Share on other sites More sharing options...
Harv Posted November 4, 2007 Author Share Posted November 4, 2007 they do age and crack. they will need replacing soon, as they will suck in air. Thanks drewpy. It sounded like a dumb question but It appeared like the metal portion of the manifolds are coated with some sort of black material. My thought was maybe it is only the black stuff that is cracking and the manifolds are ok. I'll take them of as soon as I get time and give them a good look see. I've had good luck getting new OEM parts from Yamaha Parts Direct. Link to comment Share on other sites More sharing options...
racerd Posted September 19, 2008 Share Posted September 19, 2008 if the manifold sucks in air this will cause lean running and holed piston crowns Link to comment Share on other sites More sharing options...
Recommended Posts