300 Bayou won't rev up
#21
#22
#24
Well, the detents in the piston may indicate this is an "interference"
engine, so the valves will likely hit the piston if the timing chain breaks
or one of the sprockets free-wheels.
Anyway, here is my 86, complete with SS gas tank, LED lights, new
piston, and lots of new electrical parts.
engine, so the valves will likely hit the piston if the timing chain breaks
or one of the sprockets free-wheels.
Anyway, here is my 86, complete with SS gas tank, LED lights, new
piston, and lots of new electrical parts.
#26
I just got done tearing it down and here's the carnage. The piston is ruined and the head took quite a beating from the piece from the carburetor being hammered into it. The compression loss was from a piece of the head being damaged and holding the exhaust valve open. The valves and cylinder look fine though and I have a spare piston and head from my parts bike. Unfortunately the parts bike got water in the top end somehow (likely before I bought it since it's been under cover the whole time I've had it) and the valves and seats are rusty. A valve job is likely in order.
I see why it was burning oil since I bought it too. The oil rings were stuck.
The damage. In the first pic you can still a piece of the carburetor slide jammed into the head.
After cleaning the old head up.
Rusty valve seats in the parts bike.
Does this look ok?
I see why it was burning oil since I bought it too. The oil rings were stuck.
The damage. In the first pic you can still a piece of the carburetor slide jammed into the head.
After cleaning the old head up.
Rusty valve seats in the parts bike.
Does this look ok?
#28