1989 suzuki 40 DT 2 stroke

[spring fever]

No dealers where I live in Baja. Motor runs well But after a 4 hr fishing trip-flushed it- tell tale is running cold water. Out of the exhaust is pretty hot-little white steam maybe-so thinking maybe stuck thermostat -after 2 hrs managed to get the thermostat out without breaking the bolts. Dropped it in boiling water and it opened. My Mexican mechanic says run it without the thermostat-water temp is 72 F. Is what I'm seeing normal-corrosion in the jacket looks pretty good. Is it okay to run it without the thermostat -permanently??.

 

[spring fever]

C'mon guys-want to button this up-I know there is lots of 2 stroke expertise out there-throw me a bone-please!

 

[abl]

spring fever,
suggest that you check that the thermostat opens at the correct (engine spec) temperature, just because it opens in a pot of boiling water doesn't mean that it is functioning correct. you could cycle it a few times in boiling water and cool water then re-install and try it out. this will sometimes help to correct it until you can obtain a new one. good luck and hope you are enjoying your time in paradise

bruce

 

[Fish Assassin]

Do you want one mailed to you?

 

[spring fever]

spring fever,
suggest that you check that the thermostat opens at the correct (engine spec) temperature, just because it opens in a pot of boiling water doesn't mean that it is functioning correct. you could cycle it a few times in boiling water and cool water then re-install and try it out. this will sometimes help to correct it until you can obtain a new one. good luck and hope you are enjoying your time in paradise

bruce

Thanks for the thought-yes boiling water is not the spec for the thermostat-I'll give that a go. I love it here but fixing things is a little frustrating-lot of stuff turns into doing next season and limping by with duct tape and the really inventive Mexican mechnicos!!

 

[spring fever]

Do you want one mailed to you?

Thanks for the thought Owen-mail she no work here. Think I'll do what abl suggested and I can always run without at a pinch.

 

[spring fever]

spring fever,
suggest that you check that the thermostat opens at the correct (engine spec) temperature, just because it opens in a pot of boiling water doesn't mean that it is functioning correct. you could cycle it a few times in boiling water and cool water then re-install and try it out. .
bruce

Abl is right the thermostat opens in boiling water but the second you introduce a little cool water-it closes tight as a clam and will not open till the water is well past 200f. Good lesson. Thanks

 

[Barnacle Bill]

Mike you should be able to run it without the thermostat. Had on older 9.9 merc
that I did just that for a month in Alaska. Good offer by Owen, just maybe a member
or two may be traveling down there shortly? Good luck,...........BB