tomdcoker
Addicted to ArboristSite
I am rebuilding a walbro wt or wa 038 carb. on a dolmar ps 401 chainsaw and I have run into a problem. The diaphragm was bad and the only way it would crank was pour gas in the carb. throat. I rebuilt the carb, choked it and after the third pull it cranked and I adjusted it to where it was running good. Set the carb. while cutting wood. It would open up good and idle fair, but when I killed it and tried to restart it the saw went down hill from there one time after I had it running fair I checked where the needle settings were and the high speed jet was open about a half turn. I put a new stihl fuel filter on it, it is getting fuel, I blew through the impulse tube and air came out the carb. I also raised the arm on the metering needle a small amount. It has a blue white spark on the plug and I tried a different plug. Now the only way it will crank is when I pour gas in the carb. Any Help would be very much appreciated. Tom