Sidewinder running poorly

[BlueLightning52]

Had issues a while back starting my sidewinder, only starts when turning ignition and holding gas lever slightly in, will NOT idle by itself, dies out.

Filled it up with fresh gas and
Drove to work to try and get it inside the warmth, worked great after being in the heat for some hours. And worked for a couple weeks.

Now, today when it's been outside without being started for 3 days, it has the same issues again.

Any idea what it can be? I figure fouled plugs. But strange that it happens after standing still for a while.

It has 2000km, on what I presume is plugs from when it was new.

Sidewinder 153 mtx 2020 with 270hp maptune kit.

 

[STAIN]

Did you check throttle cable freeplay?

 

[MrSled]

Had issues a while back starting my sidewinder, only starts when turning ignition and holding gas lever slightly in, will NOT idle by itself, dies out.

Filled it up with fresh gas and
Drove to work to try and get it inside the warmth, worked great after being in the heat for some hours. And worked for a couple weeks.

Now, today when it's been outside without being started for 3 days, it has the same issues again.

Any idea what it can be? I figure fouled plugs. But strange that it happens after standing still for a while.

It has 2000km, on what I presume is plugs from when it was new.

Sidewinder 153 mtx 2020 with 270hp maptune kit.

I have had this happen on my wife’s sled. Make sure there is no moisture in the sensors in the vaccum lines that go into the nose area by fuse box. It’s could also be the sensor on the throttle body rack.

Allen Ulmer may know more. @Srxspec

 

[BlueLightning52]

Did you check throttle cable freeplay?

I checked just now, seems normal, about a credit cards thickness play in it. Forgot to mention, on full throttle it shoots/crackles etc

 

[BlueLightning52]

I have had this happen on my wife’s sled. Make sure there is no moisture in the sensors in the vaccum lines that go into the nose area by fuse box. It’s could also be the sensor on the throttle body rack.

Allen Ulmer may know more. @Srxspec

I'll make sure to check those vacum lines when I get off work!

 

[BlueLightning52]

I have had this happen on my wife’s sled. Make sure there is no moisture in the sensors in the vaccum lines that go into the nose area by fuse box. It’s could also be the sensor on the throttle body rack.

Allen Ulmer may know more. @Srxspec

Is these the vaccum lines and sensors you had in mind?

 

[MrSled]

Is these the vaccum lines and sensors you had in mind?

Yea. Also check the other sensors connections and one of them points down that it’s not plugged.

 

[sideshowBob]

Check this info out as well.

Plugging the wastegate solenoid vent?

Has anyone had there wastegate solenoid vent plugged by dealer? I have 2 winders here both with plugged vent lines both had codes and this was yamaha recommendation (both stock at the time) One is stock and runs fine The second one is tuned and is getting only 13lbs on 270 with both hurricane...

ty4stroke.com

 

[BlueLightning52]

Check this info out as well.

Plugging the wastegate solenoid vent?

Has anyone had there wastegate solenoid vent plugged by dealer? I have 2 winders here both with plugged vent lines both had codes and this was yamaha recommendation (both stock at the time) One is stock and runs fine The second one is tuned and is getting only 13lbs on 270 with both hurricane...

ty4stroke.com

Will check over everything mentioned after christmas, right now it's time to relax and enjoy christmas time!

And Thanks for all the tips on what to check!

 

[1nc 2000]

Make sure the rubber hose under throttle bodies going to the idle air circuit does not have a kink it it or a blockage from water and oil freeze.. That will plug off your idle air.