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Post by strtjoints on Dec 11, 2017 18:10:19 GMT -5
This XL 2 HAS a walbro HDC with just one mixing screw. It starts up but will only run full throttle & then rough & at low speed. can turn mixing screw in or out it makes no difference in the way saw performs. the carb was cleaned with new kit installed. the diaphragm pump doesn't look exactly the same as most kits I see on E bay, Any suggestions? also fuel tank duck valve was replaced with a stub of tygon hose not by me. don't think a new valve will now fit as hole looks to have been reamed out.
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Post by undee70ss on Dec 11, 2017 20:11:17 GMT -5
With only one mix screw, the carb has a fixed high and the screw is for the low mix, which effects idle mixture and somewhat acceleration only. If it’s not flooding, diaphragm set to low, or check valve in main nozzle is bad. Did you clean carb with high pressure air? ( which is s no no)!
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Post by strtjoints on Dec 11, 2017 20:43:33 GMT -5
Well it smells gassy & smokey when running . no didn't use high pressure air just cleaner.
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Post by undee70ss on Dec 11, 2017 20:56:55 GMT -5
Well it smells gassy & smokey when running . no didn't use high pressure air just cleaner. You may be sucking bar oil in crankcase if getting lots of smoke. Disconnect oil lines from crankcase and plug openings. Get engine running correctly first, then we can work on the oiler. |
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