sgkent
Lawn Addict
- Joined
- Sep 27, 2017
- Threads
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- 1,679
have a mid 90's Craftsman edger that has a 3.8 hp Tecumseh engine. The primer bulb is a 36045 primer bulb. I think in maybe 15 years I have replaced it twice - the last one came from maybe Jacks or Tulsa Engine - just a red bulb held in by a ring. This engine has been really hard to prime and if I hold the ring in with a small screwdriver and pull and pump the bulb the engine will get enough fuel to start. But if I just pump the bulb there just isn't enough fuel to get it going easily. I ordered a new bulb today, a new old stock packaged one. I am thinking that maybe the bulb leaks air around where it seats. Is there anything I can put on it when the new one goes in that will help seal it? Are there any other parts that might be at fault? I have gone thru the carb and it runs well once it starts. I don't see any check valves for the bulb. I was thinking maybe some HD yellow 3m weatherstrip glue might help but I suspect some of you have run into this before.