how to check the compression on outboard?

[birdgod]

Hi, i see that alot of people mention about checking the compression. How do i check mine? do i need to get a special equipment? I have a 89' 85hp force outbord.

 

[Barnacle_Bill]

Re: how to check the compression on outboard?

All you need is a compression gauge. Available right here on iBoats or your local auto parts store.

 

[birdgod]

Re: how to check the compression on outboard?

All you need is a compression gauge. Available right here on iBoats or your local auto parts store.

Cool, how do i hook it up also, for my motor what is the compression suppose to be?

 

[john from md]

Re: how to check the compression on outboard?

You need to disconnect and ground the plugs, jumper the neutral start switch and place the trottle in WOT position. Compression should be @150#. It is detailed in the Clymer Force Outboard Shop Manual that you need to buy.

John