Post by peter32257 on Jul 23, 2021 13:33:27 GMT -5
This is my third XL I bought for parts, an XL AO. Had 50psi compression which improved after cleaning piston ring groove to 100 psi.
Since it was pretty complete I got in running. Carb kit, lines, plug.
Its piston is a little bigger in diameter than my first XL, but same carb. The HDC on this saw does not have the extra fuel circuit through the throttle rod that my other XL does.
There is no UT or SN label, has a plastic grip bar. Plastic case.
It runs hot, like 450F at the muffler so I’ll try to richen it up as much as possible from the low speed (only available) carb mixture screw. I disassembled crankcase completely to get a good look at the piston, seals looked good, but I have not pressure/vacuum tested the crankcase.
I guess I could swap carbs with my other XL to see if that extra fuel circuit helps.
Is there anything else I should check if crancase pressures are ok? Do these saws run this hot normally? Should I try to drill out the main jet a little? It is .027
Since it was pretty complete I got in running. Carb kit, lines, plug.
Its piston is a little bigger in diameter than my first XL, but same carb. The HDC on this saw does not have the extra fuel circuit through the throttle rod that my other XL does.
There is no UT or SN label, has a plastic grip bar. Plastic case.
It runs hot, like 450F at the muffler so I’ll try to richen it up as much as possible from the low speed (only available) carb mixture screw. I disassembled crankcase completely to get a good look at the piston, seals looked good, but I have not pressure/vacuum tested the crankcase.
I guess I could swap carbs with my other XL to see if that extra fuel circuit helps.
Is there anything else I should check if crancase pressures are ok? Do these saws run this hot normally? Should I try to drill out the main jet a little? It is .027