85 hp chrysler motor cuts out at high speeds?

Question

Alright just bought a new boat well its an old boat a 1975. The first day I had it out it was fine, but did quite a bit of killing it and starting it, but the next time I brought it out when I would be abouth three quarters to full speed it would start to cut out, to me it sounds like a fuel problem, fuel pump maybe. But any help would be nice and any help letting me know how to fix it would be great..thanks

Answer 1

Try cleaning the carb(s) and the spark plugs (or replace spark plugs), check your plug wires for damage, and check your fuel for water.

Answer 2

ok do you have a water sepperator on the fuel line if you do change it

check the vent make sure its open and venting properly  could be a carb problem but lets not go there yet check the fuel filters first

Answer 3

If you are planning to keep this engine for awhile, invest in a tuneup and repair manual. It will pay for itself many times over the life of the engine. Here is a site that sells them:

http://www.marineengine.com/manuals/selo...

Answer 4

I am not being a Smart A@@ but you really need a differnent brand of engine. You will be constantly working on this engine and it will breakdown on you on the water. Even a early 80's Evinrude will be many times more reliable.