what should my temp guage read?

[1989force]

Im finishing up a rebuild project on a 1989 85hp force... (now around 100HP) To save myself from ruining this engine i would like to install a temperature gauge for my boat. my mechanic said that you need a gauge that reads up to 130. However i can't find any like that.. Could someone please tell me where i could find one and if that is the truth.. Also what is a good operating temp for an outboard. I heard that they blow up and overheat at around 180.. Whats the maximum temperature that they can endure?

 

[scotiany]

Re: what should my temp guage read?

For my Chrysler, it's around 143 deg.

 

[CoachHolland]

Re: what should my temp guage read?

What kind of modifications are you doing to get the increased horses out of your outboard. Please share.

 

[1989force]

Re: what should my temp guage read?

I bored the 3 pistons .004 put wiseco racing pistons in there made specially for 2 strokes because they have grooves to retain oil and get better compression.. Bored out the intake and exhaust to get more fuel through... After doing all this work i dont want to fry it so i need to know a good operating temp for it and what temp is too hot