03 rev 800

[1hellion]

I have a 03 rev 800 with new motor had carbs gone thru, not evertime but most when I turn it off after a ride then go to start it 5 to 10 min later it dont want to start,When the sled is cold it firers rite up. Anyone with a idea....

 

[dooryder]

how much compression does it have?,

 

[1hellion]

Last time i checked its like 140

 

[1hellion]

Its a short block from skidoo, it has done this senci I put it in, its werd i have to hold it wide open to get it going. ( good thing i have eletric start lol )

 

[maxwell]

fuel pump could be on the way out. possibly.

 

[1hellion]

would it still run good if it was on its way out?

 

[1hellion]

the motor has under 800 miles

 

[OVERKILL 19]

Reeds are warped/toast?

 

[KORE]

Cracked Coil?? Cold she works, hot she expands.....

 

[1hellion]

Reeds are warped/toast?

I put brand new boyesen reeds in it when i did motor...

 

[OVERKILL 19]

I put brand new boyesen reeds in it when i did motor...

I had the same problem on my old 02 ZX and it was the reeds. With new reeds that rules that out.

 

[1hellion]

Cracked Coil?? Cold she works, hot she expands.....

sometimes it fires rite up, so would the coil still do that?

 

[DaveB]

Sounds like typical Doo Doo fat bottom end. The longer you idle before you shut it down, the more it loads up. Acts flooded on restart, hence the WOT needed to restart. What pilots are in it? Maybe drop a size....or open the air screw a 1/2 turn. Problem is, that DooDoo midrange is usually lean....so if you get the bottom end nice, the midrange gets even leaner.

 

[bhowes]

hAD A 98 670 X FLOODED ALL THE TIME IF YOU LET IT SIT W/O SHUTING OFF THE FUEL VALVE LEARNED TO LIFT THE HOOD AND SHUT VALVE NO MORE PROBLEMS SKIDOO NEVER FIQURED OUT THE PROBLEM W/ MY OLD 670 SOME TIMES YOU JUST LEARN TO LIVE WITH THINGS

 

[1hellion]

Sounds like typical Doo Doo fat bottom end. The longer you idle before you shut it down, the more it loads up. Acts flooded on restart, hence the WOT needed to restart. What pilots are in it? Maybe drop a size....or open the air screw a 1/2 turn. Problem is, that DooDoo midrange is usually lean....so if you get the bottom end nice, the midrange gets even leaner.

It has stock jets in it. So if I leave the jets alone and just turn air screw out you think that would be ok?

 

[1hellion]

hAD A 98 670 X FLOODED ALL THE TIME IF YOU LET IT SIT W/O SHUTING OFF THE FUEL VALVE LEARNED TO LIFT THE HOOD AND SHUT VALVE NO MORE PROBLEMS SKIDOO NEVER FIQURED OUT THE PROBLEM W/ MY OLD 670 SOME TIMES YOU JUST LEARN TO LIVE WITH THINGS

The 03 rev has no fuel shut off.
If your sled was flooding all the time it would be more of the needle and seat holding up and flooding the motor.. I had a old xcr 600 that did that all the time!
My sled acts like its not getting a nuff fuel....

 

[Summiteer]

Is your carb heater valve open? Boils all the fuel out of the carbs when you let it sit hot, takes forever to restart.

 

[1hellion]

Is your carb heater valve open? Boils all the fuel out of the carbs when you let it sit hot, takes forever to restart.

I never thought of that!! I think I have it open all the time!!

 

[1hellion]

Bump it to the top