1973 chrysler 85 hp cuts out at wide open throttel

[d absher]

i have rebuilt the fuel pump and cleaned the carbs and replaced the fuel line the boat sat for two years i have not hade this problem prior to this its not overheating im lost as to what the problem is any ideas ???

 

[jerryjerry05]

Re: 1973 chrysler 85 hp cuts out at wide open throttel

Built in tank?Possible vent line clogged.Portable tank too.
Water in fuel.
Gas line on motor,ethanol eats the rubber and it can cause it to collapse.

 

[Frank Acampora]

Re: 1973 chrysler 85 hp cuts out at wide open throttel

Need to know a little more. Does it start right up again or do you need to wait a couple of minutes? If you need to wait, then the wires passing under the flywheel are touching it and shorting. The circuit breaker pops and it will self reset when it cools. Then the engine will restart.

In later year Force engines, Mercury placed a thin metal shield under the flywheel to prevent this.

 

[d absher]

Re: 1973 chrysler 85 hp cuts out at wide open throttel

it started right up againit runs great at any other throttle position had it out yesterday will check fuel lines and tankprobly need carb rebuild also thanks for help guys