[surfcreatr]

Hello, My 1994 Yamaha Waverunner 3 will idle but wont take throttle. It overheated when I pulled sand into exhaust. After cleaning exhaust out I took it out and it ran fine for 2 hours, now it will run but will not take throttle. I have changed fuel lines, filter, rebuilt carb, rechecked rebuild, and still no change. Question: can the thermo switch have gone bad from overheat and be sending bad reading causing limiter to kick in. If so how can I check thermo unit to see if that is problem, It is an expensive part to change without being sure. Thanks, Don

 

[GCwaverunner]

What do you mean wont take throttle. Does the engine die upon acceleration. Check the carbs again and comp test it.

 

[surfcreatr]

Thanks for reply, I got it worked out. Turns out my temp sensor was bad, I cut it out of system and it runs fine. At $120.00 it may be awhile before I get a new one. I already have a temp gauge installed so I will be OK.