1998 Suzuki Dt150 help with temp overheat

[dhanson]

Please help 1998 Dt150 efi

My temp alarm buzzing at WOT and shuts down power . I have replaced water pump and found a small piece of impeller blade was missing (size of a pea triangular shaped). found piece in older t-stat retrieved , I also replaced both t-stats and checked and cleaned poppet valve. My water-pressure is reading 10-15 idling and 25-30 psi running WOT with nice tell tell stream.While idling and running about 5mph alarms does not buzz and also on the muffs it will not alarm and psi is 5 . i had a point and shoot thermometer and starboard side head is 125-130 degrees and port is 180 degrees on muffs idling . Im needing guidance on what to check or any imput that may help thanks to all

 

[99yam40]

Re: 1998 Suzuki Dt150 help with temp overheat

One side is usually warmer than the other
I would put it in the water and take temps again.
Maybe the muffs are not giving enough water to cool properly

 

[dhanson]

Re: 1998 Suzuki Dt150 help with temp overheat

also i ran at lake today ran great at ramp. istarted going down lake on plane ran aprrox 1/4 mile and temp alarms went off and motor went into retard mode i turned switch off and on and i can run 5 mph and does not set alarms off as soon as i pull on plane alarms set off again not sure what else it can be < ran great until last year i had impellar replaced and now running hot also replaced impellar again to see if new impeller was bad still same results im at wits end on this thanks

 

[N2Boating]

I know this is an old thread but did you ever resolve this issue?

 

[GA_Boater]

I know this is an old thread but did you ever resolve this issue?

He left after his post on 2/26/2014 and never returned.

Closed.