I have a 1987 Suzuki DT65 that I overhauled last year, doing away with the oil injection and now manually mixing 50:1<br /><br />Been using it plenty for the last year, runs great! Just don't idle for long periods to avoid smoking and don't want any carbon build up in the rings.<br /><br />Recently the water temperature light flashed on and off a couple of times but the water stream was still strong at the tell-tale and was just warm to the touch, also warmer (than the water)to the touch at the engine block.<br /><br />Used the boat a few times since and the light would occasionally flash on and off at 1/2 and greater throttle.<br /><br />I put in a new water pump kit (the old was not worn that bad, it was just a year old and the housing has no noticeable scratches or scars)(I did not change the housing)<br />First time out the light still occasionally flashes at 1/2 and greater throttle.<br /><br />I was wondering if I need to replace the housing and or the tube and grommets? Another question, is does the tell-tale pissing a strong stream indicate that water is filling the block completely and properly cooling the engine?<br /><br />3 months ago I put this motor on an aluminum boat that has trim tabs and set the cavitation plate level with bottom of boat. Trim tabs cause a rooster tale spray and cavitation plate rides top of water. The water intake is under water. Perhaps I'm getting air bubbles with the water causing the light to come on? Perhaps I need to lower the motor one more hole?<br /><br />Thanks for any suggestions and answers to the questions.
