250 yamaha wont start

[gofastjoe]

I have a 91 250 outboard TXRP. Went to go out yesterday and it wont start, cranks fine, batteries are new, has spark, enrichment pump is running, use the manual valve and same, squirt a little brake cleaner in the carbs and it cranks right up and will for the rest of the day. All the grounds are clean, any help would be great. Thx

 

[multimech]

Re: 250 yamaha wont start

Sounds like a problem with enrichment circuit. Don't spray anymore brake cleaner into the engine, it will dry the oil off important points and cause engine damage. You are using the brake cleaner to bypass the enrichment problem.