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please help me!! ski-doo 440 running like "edit for bad l

440 race trail engine help can notrunningright

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#31 Braaap94

Braaap94

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  • Sled:2003 ski doo MXZ-X 440

Posted 05 January 2015 - 06:09 PM

Any news Keewatin440?

1984 Bravo 250

1998 Formula Deluxe 583

2003 MXZ 440X Race 

2008 Arctic Cat F6 LXR

 


#32 MESSIER*

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Posted 06 January 2015 - 07:05 PM

If I remember correctly peak HP on a 440 is made at 8400rpm, clutch it for that

14 600rs

07 mxzx 440

07 mxzx 440

07 mxzx 440/800

06 mxzx 440/600

06 factory mod 600


#33 keewatin440

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Posted 10 January 2015 - 02:20 PM

I would check for an electrical issue. I had a similar problem with my 04 440. found one wire that was rubbing the frame and arching but not until my rpm went to 5500. track would engage then start sputtering and cracking then come back idling strong but the electrical pull would stop the sled from running strong. I replaced clutched rebuilt and cleaned everything over and over. look for and arching wire...

sounds like mine! i think my electrical is messed up


BRB productions gheck it out on instagram, twitter & youtube 

 

sled :

07 440 

1.75 track

6 inch riser

c&a xt skis

j&t race can :wub:

 

 


#34 keewatin440

keewatin440

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  • Sled:2007 ski-doo mxz 440

Posted 10 January 2015 - 02:21 PM

Any news Keewatin440?

i went to the shop and they said it ran better without the air box but! im 100% sure its my elec


BRB productions gheck it out on instagram, twitter & youtube 

 

sled :

07 440 

1.75 track

6 inch riser

c&a xt skis

j&t race can :wub:

 

 


#35 MikeSiroski

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Posted 08 February 2021 - 08:03 PM

Can you shed some light on how to tell what year engine/ electronics are ? Or how to tell between 260 watt stator and 360 watt?





Also tagged with one or more of these keywords: 440, race, trail, engine, help, can, notrunningright

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