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Old 12-19-2008, 05:48 PM   #1 (permalink)
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Unhappy 98 arctic cat zl 440 bogging problem

i have a 1998 zl 440 carburated twin.just heading out for the years first ride 2 weeks ago i noticed the problem.sled started up fine;but when i would give it the gas it would bog down and die.i found i could get it up to rpm if i left the choke open;but it still would not work right?brought it home and gave it the once over.took carbs off and cleaned em.cleaned primary and secondary clutches.adjusted carbs to factory settings and changed plugs and fuel filter.started it up on the stand let it warm up and fine tuned the carbs.the thing ran great!!tried to go for a ride today.started right up idled great and worked fine--for about 200 yards!same problem as noted earlier!!plus i noticed that if i opened the choke i could coax it to go like a raped ape;but it was not consistent.i also noticed when it would not want to go i could get it to almost 5000rpm yet it still would not go??--clutch?carbs?i am at a loss here!please help
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Old 12-20-2008, 11:36 AM   #2 (permalink)
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update:today i took the carbs off again and recleaned and reset all adjustments.noticed that i had the air mixture screw out a turn and a half?reset it to 1 turn out.changed the plugs and visually checked everything under the hood.put it up on the stand and fired it up.after it warmed up i adjusted the idle screws until i got the rpms at 1500.it runs awesome!the track just barely moves at idle and it has very good throttle response!!going out in a half hour to test it on the trail!will let you guys know what happens.
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Old 12-20-2008, 01:46 PM   #3 (permalink)
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NO MORE PROBLEM!!!!just got back from my test ride.sled worked great for about 300 yards then problem started again.i popped the hood and turned the air screws to 3/4 instead of 1 turn and tested the throttle.it seamed quite a bit better but still had a slight bog to it.i then adjust the idle screws till the rpms were at 1500.bingo!!the sucker snaps now when i feather the throttle.took it for a 20 minute ride and put it to the test!works great.good throttle response through all ranges and good idle!just came home to pick my son up(it is his sled)and head out riding for the day.hope my experience help anyone who has the same problem.happy riding and be safe.
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Old 12-22-2008, 08:35 PM   #4 (permalink)
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having a similar problem on 96 ZRT 600. Do I need to rebuild the carbs? Should I buy gasket kits or will they just need cleaning?
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Old 12-23-2008, 01:56 AM   #5 (permalink)
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Clean and synch them.
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'90 Wildcat Project in progress.

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1980 Indy Trail 440 (for sale)
1980 AC Pantera (donor engine to the 90 wildcat)


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Old 11-27-2009, 05:03 PM   #6 (permalink)
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I have a 2000 Arctic Cat 440 Sno Pro zr, that has a lean bog. I'm not sure what to do.
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Old 11-27-2009, 06:52 PM   #7 (permalink)
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Always Start The Year With Cleaning The Carbs!
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Old 11-28-2009, 06:43 PM   #8 (permalink)
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Exclamation 2000 Arctic Cat 440 Sno Pro

I cleaned the carb's, and pretty much everything else in the motor. Every Year thats the first thing i do before the season starts up. Do you think it might be the pistons that need to be replaced? And another question i have is on the suspension i replaced the shocks, and retaining springs last season but for some reason the sled still likes to bottom out. What should i do?
Thanks
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Old 11-28-2009, 06:47 PM   #9 (permalink)
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Quote:
Originally Posted by sabres1 View Post
I cleaned the carb's, and pretty much everything else in the motor. Every Year thats the first thing i do before the season starts up. Do you think it might be the pistons that need to be replaced? And another question i have is on the suspension i replaced the shocks, and retaining springs last season but for some reason the sled still likes to bottom out. What should i do?
Thanks
get a stiffer spring
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10/11 season: 1014 miles
My sled:
03 z440 sno pro w/ 3000 miles
-Fresh Top End
-Rejetted
-white handguards
-4 inch riser
-1.375 inch track




rest of the fleet:
2003 polaris classic 340 3000 miles(FS)-2003 polaris indy xc 500 2200 miles(FS)-2000 polaris xc 700 7000 miles-2003 arctic cat zl 600 3200 miles-1999 arctic cat zl500 4500 milesSOLD
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Old 11-29-2009, 03:14 AM   #10 (permalink)
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Quote:
Originally Posted by sabres1 View Post
I have a 2000 Arctic Cat 440 Sno Pro zr, that has a lean bog. I'm not sure what to do.
At idle or midrange or top end?


Quote:
Originally Posted by sabres1 View Post
I cleaned the carb's, and pretty much everything else in the motor. Every Year thats the first thing i do before the season starts up. Do you think it might be the pistons that need to be replaced? And another question i have is on the suspension i replaced the shocks, and retaining springs last season but for some reason the sled still likes to bottom out. What should i do?
Thanks
Which setting on the pre-load block do you have it at?
Where is the rear arm mounted, above or below the tunnel?
__________________
Old Cat Rider
'93 Wildcat 700EFI
w/ Comet 108 Pro-4 clutch & 01 ZR skid

'90 Wildcat Project in progress.

Vintage (sorta)
1980 Indy Trail 440 (for sale)
1980 AC Pantera (donor engine to the 90 wildcat)


http://www.dcdrifters.net/


Worshipful Master; F&AM Dryden Lodge# 472
http://www.masonicdryden472.org/

Rules of this forum are strictly enforced!
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