gas engine surging
#1
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Location: Rockford,
MI
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gas engine surging
I have a chainsaw conversion engine that surges on wide open throttle. Starts fine, idles great. Not sure of make or size exactly. Only markings are made in usa. Walbro carb. Ive cleaned it already. Thanks
#2
My Feedback: (5)
Could be a carb , or coil/spark issue.
You stated that you cleaned it so I assume that you opened the carb and inspected for dirt in the screen. Did you rebuild it ?
What color pump diaphragm is in it , blue,black, tan? Should pull the welch plug and clean as dirt can get in there too.
If the carb is good then look at the coil,spark plug,wire.
You stated that you cleaned it so I assume that you opened the carb and inspected for dirt in the screen. Did you rebuild it ?
What color pump diaphragm is in it , blue,black, tan? Should pull the welch plug and clean as dirt can get in there too.
If the carb is good then look at the coil,spark plug,wire.
#5
My Feedback: (2)
Geez, I hate to admit how long it took me to find it, but I had my fuel pick up tube crack inside the fuel tank making it nearly impossible to tune the engine. Surging was just a partial list of what I was chasing....
You need to run it with the cowl off to see if the servo isn't at the root of your evil as well.
You need to run it with the cowl off to see if the servo isn't at the root of your evil as well.