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Author Topic:   loosing rps and power
johnnywhaler posted 08-05-2002 05:59 PM ET (US)   Profile for johnnywhaler   Send Email to johnnywhaler  
Took my boat out today to get some gas and shortly after I filled it up, while giving it full throttle, she started to shut down and loose rpm's, I bring back to idle give full throttle and everything is fine for a second then boom start loosing rpms again. It's a 93, 100 hp Johnson. Any thoughts? Could I have gotten bad gas?
johnnywhaler posted 08-05-2002 06:18 PM ET (US)     Profile for johnnywhaler  Send Email to johnnywhaler     
Excuse my spelling. I'm very upset. First my wife won't let me name our first son Montauk, and now this.
bwmenemsha posted 08-05-2002 08:19 PM ET (US)     Profile for bwmenemsha    
hi johny....i had a similar problem last weekend (similar motor also btw) i thought it was gas line and i atually found a little leak at the clamp on motor gas line intake but that did not alter the problem very much....just before i took it to the mech i looked at it close one more time and saw this ss rod maybe 1/8 dia about 2-3" long that was hanging just below the flywheel...i found out that it is the timing advance and where it was "supposed to be " attached but broken off from actually moves as motor revs up...basically i was running on two cylinders....i fixed temporarily and permanent fix costs about $6....hope that helps
Bigshot posted 08-06-2002 11:12 AM ET (US)     Profile for Bigshot  Send Email to Bigshot     
Bad gas is common on the water. Do you have a fuel water separator? If so replace or at least drain it. Disconnect fuel line and squirt in a glass jar and see if water is getting in it. Dump some dry-gas in the tank.
Bigshot posted 08-06-2002 03:49 PM ET (US)     Profile for Bigshot  Send Email to Bigshot     
Look at the other post on "last try before I call dealer" or whatever.

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