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Dragon doesn't like deep powder
- Inconsistent throttle response
started by polguy
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March 10th 2009 at 4:06 PM
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polguy
Dragon-Fly
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12 Posts
Group: Members
Member Since: March 10th 2009
Location: Red Deer, Alberta, Canada
Current Sled: 09 800 Dragon
2008-2009 Miles: 1000
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Anyone have inconsistent throttle response on 09 800 dragon. Had the reflash done... little to no difference  It pulls hard on hard pack but not in deep snow and especially on long pulls. It loses ground speed to the XP after 20-30 seconds in the deep and pulls away on the old snow. RPM will sometimes drop to 6500 at full throttle. Please help!
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Site Supporter
Group: Site Supporters
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March 10th 2009 at 4:09 PM
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motodeficient
Waiting for more snow
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1358 Posts 
Group: Members
Member Since: July 21st 2007
Location: MAINE
Current Sled: 04 XC 660 SP
2008-2009 Miles: 800
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Exhaust can getting plugged in the deep snow?
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March 10th 2009 at 4:11 PM
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polguy
Dragon-Fly
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12 Posts
Group: Members
Member Since: March 10th 2009
Location: Red Deer, Alberta, Canada
Current Sled: 09 800 Dragon
2008-2009 Miles: 1000
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Doesn't get any better on the side hill
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March 10th 2009 at 4:34 PM
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MNSLEDNECK56308
Senior Member
MNSLEDNECK56308 done working on trailer for the night!
Updated Thursday at 10:44 PM
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2710 Posts 
Group: Moderators
Member Since: January 12th 2004
Location: ALEXANDRIA, MN, USA
2008-2009 Miles: 1043
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check compression, bet cylinder is scored or scuffed! Lots of info on this!
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March 10th 2009 at 4:55 PM
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dtmmil
Senior Member
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3182 Posts 
Group: Members
Member Since: January 27th 2007
Location: Hawley, MN, USA
Current Sled: 99 xc700
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Quote originally posted by motodeficient
Exhaust can getting plugged in the deep snow?
Like this guy asked, is your exhaust outlet getting blocked??
Clutched
Jetted, boyesen reed petals, boost bottle, 98xc carbs slides, 1371 needles, gutted air box
Homeade 7 1/2" riser
Homeade suspension drop brackets
shortened and blackened windshield
powermadd handguards
144 conversion, tracks usa extensions, custom tunnel extension and rear bumper, IQ flap, 1.25" track
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March 10th 2009 at 6:56 PM
[ Modified March 10th 2009 at 7:01 PM
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polguy
Dragon-Fly
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12 Posts
Group: Members
Member Since: March 10th 2009
Location: Red Deer, Alberta, Canada
Current Sled: 09 800 Dragon
2008-2009 Miles: 1000
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Quote originally posted by MNSLEDNECK56308
check compression, bet cylinder is scored or scuffed! Lots of info on this!
You could be right, but never seen poor compression be so inconsistent!  Quote originally posted by dtmmil
Quote originally posted by motodeficient
Exhaust can getting plugged in the deep snow?
Like this guy asked, is your exhaust outlet getting blocked??
Like I replied, it will continue on side hills. Even on it's left side it doesn't seem to matter
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March 10th 2009 at 7:05 PM
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mmiller491
Adrenaline Junkie
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688 Posts 
Group: Members
Member Since: February 6th 2009
Location: Where ever the snow is, Michigan, USA
Current Sled: 1998 SRX 700 Triple
2008-2009 Miles: 500
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Quote originally posted by MNSLEDNECK56308
check compression, bet cylinder is scored or scuffed! Lots of info on this!
haha yeah i seem to be quite the advocate on the 800 liberty engines. I was gonna say the same thing, check compression. Should be at about 130 im guessing? From what i heard on these before thats what it SHOULD be. But most people are getting about 120.
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March 10th 2009 at 7:20 PM
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polguy
Dragon-Fly
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12 Posts
Group: Members
Member Since: March 10th 2009
Location: Red Deer, Alberta, Canada
Current Sled: 09 800 Dragon
2008-2009 Miles: 1000
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Quote originally posted by mmiller491
Quote originally posted by MNSLEDNECK56308
check compression, bet cylinder is scored or scuffed! Lots of info on this!
haha yeah i seem to be quite the advocate on the 800 liberty engines. I was gonna say the same thing, check compression. Should be at about 130 im guessing? From what i heard on these before thats what it SHOULD be. But most people are getting about 120.
I have 2 problems here...1: why does it go from dogging it to ripin' your arms off? and 2: The sled is 5 1/2 hours away waiting for my next trip to the mountains!!!
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March 10th 2009 at 7:22 PM
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mmiller491
Adrenaline Junkie
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688 Posts
Group: Members
Member Since: February 6th 2009
Location: Where ever the snow is, Michigan, USA
Current Sled: 1998 SRX 700 Triple
2008-2009 Miles: 500
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my sister's sled had this problem... does it stall out randomly? like if you let off the throttle it just boggs down and dies?
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March 10th 2009 at 7:34 PM
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polguy
Dragon-Fly
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12 Posts
Group: Members
Member Since: March 10th 2009
Location: Red Deer, Alberta, Canada
Current Sled: 09 800 Dragon
2008-2009 Miles: 1000
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Quote originally posted by mmiller491
my sister's sled had this problem... does it stall out randomly? like if you let off the throttle it just boggs down and dies?
It is random but it doesn't die and you don't have to let off the throttle... sometimes letting off and hammering it agian releives it for a bit 
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March 10th 2009 at 7:40 PM
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mmiller491
Adrenaline Junkie
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688 Posts
Group: Members
Member Since: February 6th 2009
Location: Where ever the snow is, Michigan, USA
Current Sled: 1998 SRX 700 Triple
2008-2009 Miles: 500
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Quote originally posted by polguy
Quote originally posted by mmiller491
my sister's sled had this problem... does it stall out randomly? like if you let off the throttle it just boggs down and dies?
It is random but it doesn't die and you don't have to let off the throttle... sometimes letting off and hammering it agian releives it for a bit
that is weird... well... at least your still under warrenty! i wouldnt be hammering it to hard. sounds like a compression problem. id be sure to check the compression and make sure its up to par.
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March 11th 2009 at 12:59 AM
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ACEXLT
THREE FOR ALL
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5668 Posts
Group: Members
Member Since: September 17th 2002
Location: Greenfield, WI, USA
Current Sled: '01 XCR 800
2008-2009 Miles: 1326
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The problem is in the power jets. There is a low jet and a high jet. There is a lean bog when switching from the low to the high jet. Polaris hasn't figured it out yet and might not be able to according to an article I read in Snotech magazine.
'01 XCR 800
'00 Indy Triumph
TRIPLES RULE!!
TWINS HAVE NO BALLS!!
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March 11th 2009 at 8:47 AM
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polarisorbust
Eat my roost !!!!
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627 Posts
Group: Members
Member Since: December 21st 2005
Location: Morley, Michigan
Current Sled: 1998 XC 700
2008-2009 Miles: 1178 miles
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Quote originally posted by ACEXLT
The problem is in the power jets. There is a low jet and a high jet. There is a lean bog when switching from the low to the high jet. Polaris hasn't figured it out yet and might not be able to according to an article I read in Snotech magazine.
these are EFI, they shouldn't have jets.
98 XC700 97.3 mph 1000 ft.
00 XC500SP 45th Anniversary Ed.
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March 11th 2009 at 9:20 AM
[ Modified March 11th 2009 at 9:21 AM
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mmiller491
Adrenaline Junkie
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688 Posts
Group: Members
Member Since: February 6th 2009
Location: Where ever the snow is, Michigan, USA
Current Sled: 1998 SRX 700 Triple
2008-2009 Miles: 500
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Quote originally posted by polarisorbust
Quote originally posted by ACEXLT
The problem is in the power jets. There is a low jet and a high jet. There is a lean bog when switching from the low to the high jet. Polaris hasn't figured it out yet and might not be able to according to an article I read in Snotech magazine.
these are EFI, they shouldn't have jets.
the cleanfire injectors is a efi system with 4 injection sites and not two, hense why you have the low jet and hit jet in each cylinder. i was confused about exactly what the cleanfire system was, i did some research and from my understanding this is what it is.
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March 11th 2009 at 9:30 AM
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Rideak907
Starting Member
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7 Posts
Group: Members
Member Since: March 8th 2009
Location: North Pole, Alaska
Current Sled: 2000 700 RMK
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Me and my family were in Summit last week and every single one of our sleds were running crappy. Mine wouldn't rip in the powder for nothing but on the trails it did okay. eventualy the problem got worse and worse and i eventually was running on one piston. when we took it into the garage my carbs were iced over from snow coming in through the air box from me riding in the powder. (it was bottumless that weekend, it freaken sucked) So we cleaned out the water from the carbs and hte air box and put some new plugs in and it ran like a champ after that. i put ductape over the grills on the cailing to keep snow from getting in and a ripped shirt over the airbox whole. hope this helps
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March 11th 2009 at 10:42 AM
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rlamppa1
Starting Member
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15 Posts
Group: Members
Member Since: January 31st 2005
Location: Richfield, MN, USA
Current Sled: 2006 Fusion 600 HO
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Is it possible that it is clutching problem. It sounds like it may not be backshifting?
2001 500 XCSP
1990 Indy 500 (8000 miles)
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March 11th 2009 at 11:23 AM
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Sound to me like you are getting snow ingestion. Have you opened your hood and looked into your air box after riding fro a while in deep snow? Most likely the air censer in there will be wet, or have snow on it. Also are your air intake vents on the side of your dash clear when it bogs? Or covered in snow? If covered it will not get air like it need, and will bog like your saying. Few things to check there.
08 800 Dragon 155
-Fox floats up front
-Tri city bumper
-8" MMP riser
-Snow eliminators
-Tons of SLP vents
-Custom honey comb paint job
"DUDE TRUST ME I AM NOT THINKING ABOUT BUYING ONE OF THE DISGUSTING VOMIT CYCLES OF PUTRID DEATH STENCH OF DOOM".
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March 11th 2009 at 11:28 AM
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X2-7
Starting Member
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24 Posts
Group: Members
Member Since: March 9th 2009
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If you've ruled out engine issues, I'd say too much weight in the primary, or too much helix angle.
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March 11th 2009 at 11:33 AM
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srx_600
www.snowmobilehotspots.com
srx_600 if its gonna be this warm i would rather have it be summer...
Updated Thursday at 8:28 PM
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2295 Posts
Group: Members
Member Since: April 29th 2007
Location: South Dakota, USA
Current Sled: 2003 RMK 700 151
2008-2009 Miles: 1200
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I to believe your sled is getting choked up in the deep stuff. Look into a deflector for the exhaust and keeping the snow out of your airbox.
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March 11th 2009 at 12:56 PM
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Dekk70
CRAZY OUTRAGIOUS !
Dekk70 Winter needs to hurry its a$$ up in getting here. READY TO RIDE!!!
Updated Thursday at 12:32 PM
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585 Posts
Group: Members
Member Since: January 3rd 2008
Location: Hawarden, Iowa, USA
Current Sled: 2002 Polaris RMK 700
2008-2009 Miles: 300ish
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I had the same problem with my 02 last year. It was an animal on the hardpack and in the depp fluffy stuff it was a dog. I think I was getting snow in my intake and plugging my exhaust. I bent my exhaust deflector down and sealed my headlight up better and it was fine this year.
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March 11th 2009 at 3:49 PM
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polguy
Dragon-Fly
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12 Posts
Group: Members
Member Since: March 10th 2009
Location: Red Deer, Alberta, Canada
Current Sled: 09 800 Dragon
2008-2009 Miles: 1000
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I kind-of hope you guys are right about the snow ingustion... but I have to ask myself why a 800 dragon with a 163" track isn't built to handle fluffy snow as well as say my 06 700 151". cus other than a couple of belts a day it ran without hesitation... NOT ONCE!!!
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March 11th 2009 at 4:59 PM
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mmiller491
Adrenaline Junkie
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688 Posts
Group: Members
Member Since: February 6th 2009
Location: Where ever the snow is, Michigan, USA
Current Sled: 1998 SRX 700 Triple
2008-2009 Miles: 500
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so this hasnt been a persistent problem? just happened once?
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March 11th 2009 at 5:33 PM
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Dekk70
CRAZY OUTRAGIOUS !
Dekk70 Winter needs to hurry its a$$ up in getting here. READY TO RIDE!!!
Updated Thursday at 12:32 PM
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585 Posts
Group: Members
Member Since: January 3rd 2008
Location: Hawarden, Iowa, USA
Current Sled: 2002 Polaris RMK 700
2008-2009 Miles: 300ish
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I had the same problem with my 02 last year. It was an animal on the hardpack and in the depp fluffy stuff it was a dog. I think I was getting snow in my intake and plugging my exhaust. I bent my exhaust deflector down and sealed my headlight up better and it was fine this year.
Thats what I asked myself to but my headlight wasnt even close to sealed well. I bought some foam stripping stuff and stuck it in there. It was all good after that.
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March 11th 2009 at 5:39 PM
[ Modified March 11th 2009 at 5:43 PM
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polguy
Dragon-Fly
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12 Posts
Group: Members
Member Since: March 10th 2009
Location: Red Deer, Alberta, Canada
Current Sled: 09 800 Dragon
2008-2009 Miles: 1000
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Quote originally posted by mmiller491
so this hasnt been a persistent problem? just happened once?
Sorry I wasn't very clear. It is persistent on the 09, but never happened on the 06.  (both are IQ's) Quote originally posted by Dekk70
I had the same problem with my 02 last year. It was an animal on the hardpack and in the depp fluffy stuff it was a dog. I think I was getting snow in my intake and plugging my exhaust. I bent my exhaust deflector down and sealed my headlight up better and it was fine this year.
Thats what I asked myself to but my headlight wasnt even close to sealed well. I bought some foam stripping stuff and stuck it in there. It was all good after that.
There doesn't seem to be any more than normal condensation in the airbox but I will see what I can do. Hopefully the problem isn't due to lack of air but, I guess this will tell me.
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March 11th 2009 at 8:38 PM
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srx_600
www.snowmobilehotspots.com
srx_600 if its gonna be this warm i would rather have it be summer...
Updated Thursday at 8:28 PM
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2295 Posts
Group: Members
Member Since: April 29th 2007
Location: South Dakota, USA
Current Sled: 2003 RMK 700 151
2008-2009 Miles: 1200
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Do you have a exhaust deflector in front of the exhaust on the belly pan to "plow" the snow?
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