canucklehead
ArboristSite Lurker
Howdy everyone!! Great site. Whenever I google search small engine problems i always seem to find a thread on this site so i thought I should join.
I have a Stihl FS 36, good compression at 120 PSI. Replaced fuel lines, fuel filter and plug. Overhauled Walbro WT 160B carb with Walbro KAT20 kit. Never replaced welch plug, just the diaphragms and needle assembly. Also gave it a 5 minute hot bath in my ultrasonic machine. It seems to flood out once running. Took it to my smarter repairman pal and he says it floods after sitting.
Almost the same scenario with FS 66. It has a Walbro WT-45a carb, same kit, same overhaul as above on the FS 36. It seemed to start and run initially, but then crapped out and hasn't run properly since. Buddy says that one is also flooding while sitting. My expert friend says sometimes carbs just won't take a rebuild.
So now I look for replacement carbs. They are both way over-priced relative to the value of these units. The WT-160 is almost impossible to find and cheapest carb is around $60. The Wt-45 is about $40. I just bought carbs for a FS120 and 250 and they were $10-15 each!!
Can some other Walbro or Zama carb fit on these and work? Any other repair suggestions? These were home use and have great compression so it seems a shame to toss them. Also frustrated what I've wasted on them and don't want to give up.
THANKS!!
I have a Stihl FS 36, good compression at 120 PSI. Replaced fuel lines, fuel filter and plug. Overhauled Walbro WT 160B carb with Walbro KAT20 kit. Never replaced welch plug, just the diaphragms and needle assembly. Also gave it a 5 minute hot bath in my ultrasonic machine. It seems to flood out once running. Took it to my smarter repairman pal and he says it floods after sitting.
Almost the same scenario with FS 66. It has a Walbro WT-45a carb, same kit, same overhaul as above on the FS 36. It seemed to start and run initially, but then crapped out and hasn't run properly since. Buddy says that one is also flooding while sitting. My expert friend says sometimes carbs just won't take a rebuild.
So now I look for replacement carbs. They are both way over-priced relative to the value of these units. The WT-160 is almost impossible to find and cheapest carb is around $60. The Wt-45 is about $40. I just bought carbs for a FS120 and 250 and they were $10-15 each!!
Can some other Walbro or Zama carb fit on these and work? Any other repair suggestions? These were home use and have great compression so it seems a shame to toss them. Also frustrated what I've wasted on them and don't want to give up.
THANKS!!