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2001 xcf 440 stalls and bogs down
- It will run good then be really boggy
started by PolarisBaller01
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December 18th 2008 at 11:05 PM
[ Modified December 18th 2008 at 11:17 PM
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PolarisBaller01
Starting Member
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2 Posts
Group: Members
Member Since: December 18th 2008
Location: USA
Current Sled: Polaris
2008-2009 Miles: 10
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I heard it could be the stator and was wondering how i exactly test it on
the white connector plug and what my ohm reading should be? Also it revs out
if thats got any thing to do with it or if anybody has any idea what could be wrong with it?
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Site Supporter
Group: Site Supporters
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December 18th 2008 at 11:35 PM
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proxJ
Senior Member
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4604 Posts 
Group: Members
Member Since: November 7th 2005
Location: West.St.Paul, Manitoba, Canada
Current Sled: 04 rev 600 x,06 mxzx 440
2008-2009 Miles: 0
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December 19th 2008 at 3:50 AM
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Boersy
2 stroke cold smoke bitch!
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644 Posts 
Group: Members
Member Since: November 28th 2006
Location: Alberta, Canada
Current Sled: 04 MXZX With a 05 800 HO
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egt
BBBBRRRRAAAAAAAAAPPPPPP!!!!!!!!!!
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December 19th 2008 at 8:20 AM
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Quote originally posted by PolarisBaller01
I heard it could be the stator and was wondering how i exactly test it on
the white connector plug and what my ohm reading should be? Also it revs out
if thats got any thing to do with it or if anybody has any idea what could be wrong with it?
trade it on for an xcr
****in sweet xcr 440
ported polished
bored out
2' paddle track
licence plate
hood
raditors
seat
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December 19th 2008 at 8:28 AM
[ Modified December 19th 2008 at 8:29 AM
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STOCKxSUCKSx440
port and polished piped heaven
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67 Posts 
Group: Members
Member Since: November 9th 2008
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i would say its loading up try fresh plugs and and clean carbs my dads did the same thing
check the chokes make sure there set right and not stuck
99' xcr 440
pro taper bars
boyeson reeds
fet bros reed spacers
d-slide carbs
K&N filters
clutched
geared
big wheel kit
twin pipes coming soon
99' cat sno pro 440
STOCK, for now...
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December 19th 2008 at 12:12 PM
[ Modified December 19th 2008 at 12:23 PM
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PolarisBaller01
Starting Member
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2 Posts
Group: Members
Member Since: December 18th 2008
Location: USA
Current Sled: Polaris
2008-2009 Miles: 10
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I have gone thru the carbs and chokes wroking right. It will run crappy on low end but once you hit a certain point on rpm it will run great, more or less at full throttle. i think its elctrical but idk?
Quote originally posted by Boersy
egt
What is the EGT? CDI box?
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January 4th 2009 at 11:02 AM
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xcf_440
Starting Member
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45 Posts
Group: Members
Member Since: November 15th 2008
Location: baddeck, ns, Canada
Current Sled: 94 indylite340
2008-2009 Miles: 826
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Quote originally posted by Xc440r
[quote=originally posted by PolarisBaller01]
I heard it could be the stator and was wondering how i exactly test it on
the white connector plug and what my ohm reading should be? Also it revs out
if thats got any thing to do with it or if anybody has any idea what could be wrong with it?
trade it on for an xcr
dont trade it, xcfs are better and more reliable 
98 mxz 583
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January 4th 2009 at 7:07 PM
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proxJ
Senior Member
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4604 Posts
Group: Members
Member Since: November 7th 2005
Location: West.St.Paul, Manitoba, Canada
Current Sled: 04 rev 600 x,06 mxzx 440
2008-2009 Miles: 0
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Does it run well when its colder or warmer? Iam 95% sure its your jetting, that xcf motor is not even close to the older fan's. Very finiky motor, i know i had one.
revegade
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January 4th 2009 at 11:41 PM
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Quote originally posted by proxJ
Does it run well when its colder or warmer? Iam 95% sure its your jetting, that xcf motor is not even close to the older fan's. Very finiky motor, i know i had one.
Thats the same vibe I was getting, what jets do you have in it and how do the plugs look?
AK PRIDE
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January 5th 2009 at 12:12 AM
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redwolf_92
Threadkiller
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471 Posts 
Group: Members
Member Since: December 21st 2005
Location: Wadena, Minnesota
Current Sled: 02 Mountain Cat 800 EFI
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When you cleaned the carbs did you reset the air screws and such to the factory positions?
I make sh!t out of crap
Ditch Compacter- 2001 RMK 600 motor and suspension, 1999 RMK 700 chassis, Thundershift weights set up to 62g, almond/gold spring, SLP pipe and silencer, 136x1.75 track, 1994 indy 440 seat, 19-40 gears, 34 deg. helix,
02 Mountain Cat 800 EFI, 159x2 camo extreme, v-force 3 reeds, holz front a-arms, C&A ultrapro skis, lightweight can, ported track, boss seat, extra cooling, LED brake light, lefty throttle
68' firebird (still restoring)
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January 7th 2009 at 11:42 AM
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jpracing
Starting Member
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3 Posts
Group: Members
Member Since: September 6th 2008
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i have the same thing happen to mine. everything is jetted right ive tried so many things. ive got it clutched to engage at about 4500 rpms. i go wide open in some deep powder in a field and then let the throttle off to turn around, it gets down to about 5000 rpms and i can hear it, it like loads up and when i hit the throttle again it doesnt go up past 6000 rpms. i was thinking it might be that i accidentally put 91 octane in it one day and you are supposed to put 87 in it because the 91 burns slower and it isnt completely burning. im gonna run the gas through and then put 87 in and see if it still does this. im hoping thats it. it runs fairly well on packed snow, it hesitates where it loads up and then it takes off hits 7750 rpms, right where it should be. then when i stop to let it idle it goes down to about 2500rpms for idle doesnt go lower (i have to adjust the air screw) then i try after 10 seconds wide open throttle and it bogs and hesitates for a couple seconds then takes off.
so im checking making sure the octane is the problem otherwise im gonna be tearing stuff apart to find this problem.
a suggestion if you are running the right octane (87) and it is doing this is to set the tab on the float level up a small amount to cut off fuel going into the bowl earlier, that can cause it to load up.
Josh
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January 7th 2009 at 10:53 PM
[ Modified January 7th 2009 at 10:55 PM
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redwolf_92
Threadkiller
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471 Posts
Group: Members
Member Since: December 21st 2005
Location: Wadena, Minnesota
Current Sled: 02 Mountain Cat 800 EFI
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You can wait til the next tank of gas, but I doubt its an octane issue. Dump some water in there to dilute it down to a lower octane.
No dont really.
I make sh!t out of crap
Ditch Compacter- 2001 RMK 600 motor and suspension, 1999 RMK 700 chassis, Thundershift weights set up to 62g, almond/gold spring, SLP pipe and silencer, 136x1.75 track, 1994 indy 440 seat, 19-40 gears, 34 deg. helix,
02 Mountain Cat 800 EFI, 159x2 camo extreme, v-force 3 reeds, holz front a-arms, C&A ultrapro skis, lightweight can, ported track, boss seat, extra cooling, LED brake light, lefty throttle
68' firebird (still restoring)
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January 25th 2009 at 9:01 AM
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XCF440Man
Starting Member
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4 Posts
Group: Members
Member Since: January 25th 2009
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Quote originally posted by PolarisBaller01
I heard it could be the stator and was wondering how i exactly test it on
the white connector plug and what my ohm reading should be? Also it revs out
if thats got any thing to do with it or if anybody has any idea what could be wrong with it?
I recently purchased a 01 XCF 440 from my local polaris dealer.My intent was to go riding with my 12 year old son who has a 95 starlite,which has a 250 one lunger in it( father/son project).Our first ride same problems.Bogging and stalling after any low speed drving or stopping 20 seconds for road crossing.Plugs were totally black(fouled).Long time friend (polaris mechanic)told me to raise clip on needle jet(metering rod) to the second slot from the top(factory setting is third slot).I went out again and found a huge improvement.Plugs are now a dark brown and just about no carbon.I will play with it some more in steps cause the fuel consumption sucks.My 01 xc 600 sp mod. was a whole lot better on fuel.I will let you know how I make out. And , yes this is a finicky motor.Most polaris mechanics know them.
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January 25th 2009 at 9:31 AM
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600switchback
Starting Member
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3 Posts
Group: Members
Member Since: January 22nd 2009
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I have two of these sleds a 2000 and a 2001. They both have unloaded on me. These engines are a bitch.... Its all in the jetting. They run like hell when they are tuned right. I raced them and the little fan screams. The sled was built for the track! They are not very trail friendly. Sorry guys...
Be careful if ya run em to lean they will burn up. I put a shot of oil in the tank.
I rocommend ya get a 550 its a better trail sled.
Good luck and have fun.
Enjoy the sno,
600 Switchback
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January 27th 2009 at 8:52 PM
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XCF440Man
Starting Member
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4 Posts
Group: Members
Member Since: January 25th 2009
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[quote=originally posted by 600switchback]
I have two of these sleds a 2000 and a 2001. They both have unloaded on me. These engines are a bitch.... Its all in the jetting. They run like hell when they are tuned right. I raced them and the little fan screams. The sled was built for the track! They are not very trail friendly. Sorry guys...
Be careful if ya run em to lean they will burn up. I put a shot of oil in the tank.
I rocommend ya get a 550 its a better trail sled.
Good luck and have fun.
Enjoy the sno,
600 Switchback
[/quote
What jet size should I run on mine, because i did some adjusting to the jet needle and it made a huge difference but still didnt run the best, would the rest be adjusting the jets?
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