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  1. J

    replacing vacuum switch

    I wrote in about a problem with starting my 1988 9.9Yamaha 4-stroke in August. It would start if I held the plunger down on the carburetor, but not very reliably. Anyway I never could figure it out and my mechanic tells me I need to replace the vacuum switch. Anyone have any experience with...
  2. J

    plunger on carburetor - starting

    I can't seem to start my 1988 yamaha 4-stroke 9.9 unless I push down on the plunger on the carburetor. I found this out after taking the carb off three times, cleaning out a bunch of gunk and soaking it with cleaner. Can someone tell me what the plunger does and what I might need to fix so I...
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