can you run on 1 cylinder ?

[Leinenkugel#1]

1987 force 85hp. I want to make sure the 2nd cylinder is working (middle one) can I pull the top and bottom plugs while the motor is running? or pull them before I start the motor? or NOT AT ALL? :redface: I plan on going to get a compression tester today but I live out town (40 miles) Like I mentioned before in a earlier post, the middle plug looks way to shinny on the firing side.

thanks

 

[yohuallin]

Re: can you run on 1 cylinder ?

mine is also a 87 85hp, and yes it does run on 1 cyl it doesnt last more than a minute but it does run..

 

[JB]

Re: can you run on 1 cylinder ?

Yes. Start her up on muffs and, at idle, disable (CAREFULLY!!) each spark plug in turn.

Doing that to a dead cylinder will cause no change. Doing it to a cylinder making power will cause the idle speed to drop or stall the engine.

Standard way to detect a dead cylinder.

 

[Leinenkugel#1]

Re: can you run on 1 cylinder ?

ok number 2 is not firing now what ?