I’m working on an old 025 that has sat for years. It was stored dry, and had one of those non adjustable H carbs. Rather than try to rebuild it, I installed a new genuine walboro wt215 carb.
the carb will not hold a tune at all. It starts and idles ok. I tried adjusting the rpms to 12.5. Sometimes it will hold them, other times it will shoot up to 15k. Sometimes it will go full lean in the middle of a cut and instantly shut off! But it always restarts. Sometimes it runs perfectly fine. The piston and cylinder are in great shape. No scoring
the saw is old and I figured it might have an air leak.. I tore the whole saw down and installed new crank seals, impulse line, fuel line and fuel filter. Resealed the pan with dirko sealant. I double and triple checked the intake boot and found no tears. Let the saw sit overnight and fired it up and…. It runs EXACTLY the same.
I would really like to try and fix it, but I have no idea what direction to go now.
the carb will not hold a tune at all. It starts and idles ok. I tried adjusting the rpms to 12.5. Sometimes it will hold them, other times it will shoot up to 15k. Sometimes it will go full lean in the middle of a cut and instantly shut off! But it always restarts. Sometimes it runs perfectly fine. The piston and cylinder are in great shape. No scoring
the saw is old and I figured it might have an air leak.. I tore the whole saw down and installed new crank seals, impulse line, fuel line and fuel filter. Resealed the pan with dirko sealant. I double and triple checked the intake boot and found no tears. Let the saw sit overnight and fired it up and…. It runs EXACTLY the same.
I would really like to try and fix it, but I have no idea what direction to go now.