18 hp fastwin

[kaashlock]

Just got an Evinrude 1968 18 hp fastwin Ser# 18802. She starts on second or third pull but wont run long. What should I do to her . Pumps water like a new one, great compression and sounds good. should I tear into the carb and rebuild it first or start with the coils maybe . Just wanted some advice.
Thanks,
Kenny

 

[david_r]

Re: 18 hp fastwin

check and see if you get a good blue spark at 3/8"-7/16" and check condition of the plugs.

if spark is good i would clean/rebuild the carb.

there is an thread on cleaning and a thread on adjustments in the frequently askede questions.

i have a '68 18hp evinrude and you can almost point at it sand it will start.

 

[jbjennings]

Re: 18 hp fastwin

I'd also try taking the fuel line off the carb and seeing if the fuel pump is pulsing fuel when you try to crank it. Definitely check spark with a tester and if good, rebuild your carb and set your idle jet properly.
JBJ

 

[Bob_VT]

Re: 18 hp fastwin

Fastwin Carbs are easy to rebuild. I would first check the gasket under the carb ....... make sure its tight...... you could have a leak.

If not I would rebuild the carbs AND do the electronics.

I am running a 1967 Fastwin 18 great motor