New Ecu flash for Yamaha Viper/Arctic cats 7000 w/POLL

[Allan]

Mine now takes 2 to 3 times on cold start.

What is your cold RPM?

 

[allyammies]

Thought it was 1580.

 

[Yamasledder]

Well we know the vipers not going anywhere soon

Yup. -43 in Brandon this morning.

 

[InRBigness]

On the plus side we can now all "jump in our trucks and head off to the Rodeo"

 

[RAMSOMAIR]

Mine did at -36C after the flash!!!!

 

[TILAM1]

Had mine done this morning. Haven't had a cold start yet but did notice the RPM seems to be slower to return to idle. Almost seems like the engine drops to idle and the tach is slow to return to 1500. If it solves the other problems it doesn't really matter I guess.

 

[grizztracks]

Had mine done this morning. Haven't had a cold start yet but did notice the RPM seems to be slower to return to idle. Almost seems like the engine drops to idle and the tach is slow to return to 1500. If it solves the other problems it doesn't really matter I guess.

Been out several times on mine since having it flashed and noticed the same thing.

 

[Carla 123]

Mine did at -36C after the flash!!!!

Mine wont go at -25c.not impressed

 

[Yamasledder]

Mine wont go at -25c.not impressed

I didn't even try mine. Too damn cold for anything to start without some sort of preheat.

 

[Cfpdscott]

-50 here today so I just had to go outside and see if the sleds would start. Two 16 vipers with the new flash both haven't been started in about a week and have been sitting outside. Both cranked over for about 7-10 seconds and fired right up. I was very surprised

 

[Allan]

Been out several times on mine since having it flashed and noticed the same thing.

Is your warm up RPM lower than before? My sled warm up rpm is much lower with the new flash in the 1500 range.
Have not took it for much of a ride yet

 

[grizztracks]

No noticeable change in RPM when cold or after warmup. It idles within Yamaha specifications but takes a little longer to drop back to idle RPM. I'm also not seeing any significant performance upgrade like some suggest. It might have picked up a little top end speed but trail conditions tend to dictate a sleds performance to the point that small improvements can often be difficult to actually feel or realize.

 

[Allan]

No noticeable change in RPM when cold or after warmup. It idles within Yamaha specifications but takes a little longer to drop back to idle RPM. I'm also not seeing any significant performance upgrade like some suggest. It might have picked up a little top end speed but trail conditions tend to dictate a sleds performance to the point that small improvements can often be difficult to actually feel or realize.

So urs still idle around 1800 RPM when cold?

 

[TILAM1]

The hot RPM is the same as before at 1500. Haven't had a chance to see cold RPM yet. Seems a bit smoother midrange but again might be the fact we have about 2" powder on the trails.

 

[grizztracks]

So urs still idle around 1800 RPM when cold?

I never bothered checking the rpm during warm up. I guess I went more by sound and it sounded like it had a normal warm up idle rpm so it didn't concern me.