force 125hp hard to keep running when shifting

[rappidsman]

Just bought boat & 125 hp force. I am having a hard time keeping the motor running when shifting into gear. Changed the spark plugs with no improvement. Once I am out in the lake and go to full throttle seems to run great. "but the last time I was moving down the lake at full speed it quite which I thought may of been a shut down from the temp. sensor but not sure of that. It restarted and ran ok.

 

[jerryjerry05]

Re: force 125hp hard to keep running when shifting

Do you have a tach? What"s are the RPMs at idle? Jerry

 

[rappidsman]

Re: force 125hp hard to keep running when shifting

There is a tach but it doesn't work. I increased the idle speed and it helps.

 

[05FireCat600sp]

Re: force 125hp hard to keep running when shifting

What are you running for compression in each cylinder? Sounds somewhat familiar to the same problem I originally had with a Chrysler 125 and it ended up having a blown head gasket. It started out simply as it wouldnt shift without throwing it into gear and then when I finally figured it out was when there wasnt any power there and the gasket was gone.