How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Louie Your Own Question
Louie
Louie, Technician
Category: Motorcycle
Satisfied Customers: 11428
Experience:  25+ yrs. experience
13948492
Type Your Motorcycle Question Here...
Louie is online now
A new question is answered every 9 seconds

2006 Trx 450r this bike fan does not turn off it's on all

Customer Question

2006 Trx 450r this bike fan does not turn off it's on all the time and the bike turns on but does not idle only with the choke pulled out
Submitted: 6 days ago.
Category: Motorcycle
Expert:  Louie replied 6 days ago.

Hi again and welcome back to the site, I’m Louie. Sorry you had to wait awhile but I’ll do my best to help.

Initially, let's try check/review the basics; have you checked and traced the yellow blue wire from the engine coolant temp sensor? ...cxheck fir nicks, rubbed raw insulation, or wire pinched?

And tested the continuity/resistance of the engine coolant temp sensor itself?

Customer: replied 6 days ago.
How much continuity resistance does it need to have ?
Expert:  Louie replied 6 days ago.

The simplest is it should not read 0 nor low and should be relatively high.

More particularly; a good ECT sensor would read 47.5 ~ 56.8 Ω @ 80°C / 80°C and 14.9 ~ 17.3 Ω @ 120°C / 248°C

Customer: replied 6 days ago.
this is with the key on correct ?
Expert:  Louie replied 6 days ago.

Negative. The sensor only by itself even with the wire to it temporarily disconnected.

Customer: replied 6 days ago.
Ok so sensor by itself unplugged correct ?
Expert:  Louie replied 6 days ago.

Yes, the sensor by itself. Its terminal (pin) resistance to body ground.

Customer: replied 5 days ago.
Ol
Expert:  Louie replied 5 days ago.

Other than the sensor, it is possible the yellow/blue wire as it may possibly be touching frame ground.

Another possibility if both the wire and sensor checks good would be a controller issue.