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Bayliner MesquitoForce 35 New to me

S

steve_in_kirkland

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"Need some expertise from thos

"Need some expertise from those with experience.
I just bought a 1975 Bayliner Mesquito with a Force 35 OB. Have only had it a week and took it to a reliable mech. for checkout and tune. He said the fuel mixture was all out of whack (too rich) and corrected it. Replaced plugs and compression check indicated that one cyl. was about 20 lbs. low. He suspects a carboned-up ring and put something in to break it loose. Said it idled fine and ran good in the tank. So, I've been reading the posts and picked up on the impeller and fuel pump diaphram replacement. I will ask him about that tomorrow. Anything else that should be checked/replaced before I launch for the first time ? I haven't checked the ser# or model # to determine the year. Have to assume that it is 1975, same as the boat. Is this a 2 stroke or a 4 stroke ? Also, what is the proper pitch prop to run ? Any help would be appreciated. Tks, SteveT"
 
"20 lbs comp is very low, Seaf

"20 lbs comp is very low, Seafoam for a decarb, get it at local auto parts store. If the decarb doesn't help compression, pull the head and check the head gasket and look down the cylinders for any damage. only turn the flywheel clockwise when you are looking at the pistons and bore"
 
"Steve, motor will be a bit &#

"Steve, motor will be a bit "newer" than 75 - the 35 Force didn't come out until 86, and the whole Force line was only started by Bayliner in about 84....

Being at least an 86 will mean that it is a "Mercury" built Force, and depending on the exact model, many parts may still be available at a Merc dealer...

They are a reasonably "ok" motor until you have a major problem with them - so keep your fingers crossed and be vigilant with your annual/routine maintenance...."
 
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