Force 85

[medic2508]

I have a 85 hp force outboard. It barely cranks with the spark plugs in but cranks fine when the spark plugs are out any idea why this is or how to fix it?

 

[jerryjerry05]

Re: Force 85

Make sure the battery is hot.Then do a compression test.Comp should be close.Any more than 10-15# difference will cause hard starting.If that is ok,then check the starter for dirty contacts.J

 

[chitownborn]

Re: Force 85

if your battery is fully charged,all cable connections good, then your starter is probably in need of brushes, or replacement. with the plugs out there is no load and will spin like crazy, but with plugs in the load in spinning the flywheel is greatly increased with the engine compression, so a weak battery, bad connects or bad starter will cause the problem good luck don

 

[Tech-9]

Re: Force 85

I agree with chitown. Check your battery voltage and connections. If all is good it's probably your starter

 

[medic2508]

Re: Force 85

Thanks for the replies i'm not mechanically inclined and I was worried it was a much bigger problem. I feel much better now thank you all.