The float does not drop in this carb. My Dad has a Craftsman (MTD) 10hp wood chipper that does not start. I took the carb off and it was all gunked up. I cleaned it pretty well and when I put it back together. Thats when I noticed that the needle sticks in the seat of of the valve after the float is raised with my finger. When I let go of the float it tries to drop back down but needle does not free itself from the seat.
Did I do a lousy job cleaning the carb or does the seat need to be replaced? I have heard of a needle/seat not closing a valve (and overflowing the bowl) but I am not familiar with this sticking issue. What would be the best course of action? There are several rebuild kits for HM100 carbs. Could I just put in a new seat? Or maybe clean the seat better? What would cause a needle to stick to the seat? Maybe the seat is made of rubber and all the carb cleaner I used dissolved the rubber enough to make it sticky/gummy? This Tecumseh engine's numbers are:
HM100
159287P
STP358U1G2RB
8117D
I could not find the exact match for my engine number when looking for a rebuild kit. The two kits I did find were :
TEC632760B or 632347
The kits come with needles and I don't see any needles on my carb. Very odd.
This message was modified Aug 15, 2011 by Underdog
