smithll
XS650 Member
Hey, I am new at posting so please be patient.
So last time I rode my xs650 the engine was making a clacking noise, I figured it was the timing chain and tore down the engine today to look and see what is wrong?
I took the head off and the timing chain and adjuster look OK to me, so I and looked at the head.
The left side looks oily with lots of carbon build-up and the cylinder bore and piston look pretty good.
The right side valves look better, not oily and not much carbon build-up but the cylinder bore and the piston look scuffed to me, no big gouges, but there is some marks in the cylinder bore and the piston skirt does have some wear. I do expect some wear after all it's 30 years old.
OK I"m trying to get to the point! What I really want to know is should I replace the pistons and rings? or do I just need new rings and a cylinder hone? How to access how much wear requires new rings and a hone job or new pistons and rings? Thanks to all of you who respond!
LARS
So last time I rode my xs650 the engine was making a clacking noise, I figured it was the timing chain and tore down the engine today to look and see what is wrong?
I took the head off and the timing chain and adjuster look OK to me, so I and looked at the head.
The left side looks oily with lots of carbon build-up and the cylinder bore and piston look pretty good.
The right side valves look better, not oily and not much carbon build-up but the cylinder bore and the piston look scuffed to me, no big gouges, but there is some marks in the cylinder bore and the piston skirt does have some wear. I do expect some wear after all it's 30 years old.
OK I"m trying to get to the point! What I really want to know is should I replace the pistons and rings? or do I just need new rings and a cylinder hone? How to access how much wear requires new rings and a hone job or new pistons and rings? Thanks to all of you who respond!
LARS
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