yamaha f225 cuts out after run

[fmmo]

since last year after rides, 1/3 of the time motor cuts out when shift gear to neutral, turn key starts right away. my normal RPM is 600. usually after short ride is fine but i would say after hard run it cuts out more often. water pump replaced last season, spark plugs, filters been changed during spring prep. what's wrong with it? oh! almost forgot it has 350hrs. thanks in advance!!!

 

[cousinabe]

Re: yamaha f225 cuts out after run

If your engine is NOT coughing/sneezing and stalling because of a low idle, your problem could be related to bad tstat, ISC valve or incorrect TPS voltage.

Here was Rodbolts advice on that thread...

here's what creates the 700 RPM or so idle.
mostly its by the temp sensor,TPS and ISC.
its possible the t-stat is stuck its possible the ISC is sticking or dirty and its possible the TPS voltage is incorrect.
the ECU will adjust air,via the ISC and ign timing based on signals from the ECT and TPS to try to maintain the ECU mapped idle speed for the throttle angle and engine temp inputs.
now ya just gotta find out whats not quite right.
remember the ECU is rather stupid.

 

[fmmo]

so is it something serious? or....

so is it something serious? or....

If your engine is NOT coughing/sneezing and stalling because of a low idle, your problem could be related to bad tstat, ISC valve or incorrect TPS voltage.

Here was Rodbolts advice on that thread...

here's what creates the 700 RPM or so idle.
mostly its by the temp sensor,TPS and ISC.
its possible the t-stat is stuck its possible the ISC is sticking or dirty and its possible the TPS voltage is incorrect.
the ECU will adjust air,via the ISC and ign timing based on signals from the ECT and TPS to try to maintain the ECU mapped idle speed for the throttle angle and engine temp inputs.
now ya just gotta find out whats not quite right.
remember the ECU is rather stupid.

thanks cousinabe!!! so do you think my motor needs immediate attention by a mechanic? to tell you the truth, ISC, TPS, ECT.... i don't even know what the heck they are

 

[cousinabe]

Re: yamaha f225 cuts out after run

I would get it serviced. make sure the tech has Yamaha fuel,electrical and 4 stroke certifications.

 

[gwseafarer]

Re: yamaha f225 cuts out after run

fmmo, I had the same problem with my 03 f225 my 1st season. Rodbolt suggested I get it looked at since the motor was acting sick. It turned out to be the tps(throttle position sensor) was not set properly. No problems since getting it adjusted. A quick fix if done by a certified tech. Good luck and let us know what the problem was.

 

[fmmo]

Re: yamaha f225 cuts out after run

fmmo, I had the same problem with my 03 f225 my 1st season. Rodbolt suggested I get it looked at since the motor was acting sick. It turned out to be the tps(throttle position sensor) was not set properly. No problems since getting it adjusted. A quick fix if done by a certified tech. Good luck and let us know what the problem was.

gwseafarer, thanks!!!!!!!! i'll definately have the TPS check by certified tech.