I have an oil-cooled 1990 Suzuki ‘90 GSX750F that I can’t convince to stop leaking where the exhaust faces the head on cylinder #2.
I’ve been trying two sets of new gaskets (aftermarket, admittedly), have had a good look at the pipe’s sealing surface and as good a look as I could get at the cylinder head port surface, couldn’t find any obvious problems, and am starting to get slightly annoyed with the situation. I could live with upset neighbours, but it runs bad around town, undoubtedly due to inhaling her own fumes at lower engine speeds. Since I’m fairly certain that if I torque those bolts down any tighter I’ll be dealing with an even bigger problem, I’d love to know what to try next. Christian Demmler, PS Facebook Group
Gary Hurd says: You’ve got the collets the wrong way round. The thin edges should be bearing down on the gaskets and the thick edges behind the clamps. They are a little tricky as of course they keep trying to fall out as you attempt to fit the exhaust. The factory suggestion is to use rubber bands to hold the collet halves together until they’re in then snip the bands off. Or you could use cable ties.