Subscribe Today

ZL 440 bogging

The general snowmobiling discussion. Discuss snowmobile tech, ask about trail conditions, talk about snowmobiling issues, whatever. Just keep it clean!

ZL 440 bogging

Postby Bruns » February 1st, 2002, 12:27 pm

Its a 1998 ZL 440 and the sled wants to bogg when you try to get back into the throttle. If you smash the gas it will drive through it. It seems to happen the most when you go through a ditch or a ruff trail. I've tried running it rich and then lean and nothing helps.
Bruns
 
Posts: 1
Joined: February 1st, 2002, 12:17 pm
Location: Corunna, MI

ZL 440 bogging

Postby 89Indy500_sp » February 1st, 2002, 12:45 pm

i know this sound like an insult but did you check the plugs? they maybe fouled.

*This Message was edited on 01-Feb-02 05:45 PM by 89Indy500_sp*
My 2003 REV 800 Sport... my baby
[img]http://www.dootalk.net/gallery/albums/album762/snonews.thumb.jpg[/img]
700 miles this season!
89Indy500_sp
Member
 
Posts: 186
Joined: October 29th, 2001, 11:46 am
Location: Rochester Hills, MI & Houghton Lake, MI

ZL 440 bogging

Postby Bruns » February 1st, 2002, 1:02 pm

They looked great, and I have changed them in the past to try to solve the problem, but no help.
Bruns
 
Posts: 1
Joined: February 1st, 2002, 12:17 pm
Location: Corunna, MI


ZL 440 bogging

Postby ZR500PA » February 1st, 2002, 10:13 pm

Have you checked your clutches, may not be shifting back down.

*This Message was edited on 02-Feb-02 03:14 AM by ZR500PA*
ZR500PA
 
Posts: 4
Joined: May 23rd, 2001, 10:49 pm
Location: Loganton, Penna.

ZL 440 bogging

Postby Bruns » February 2nd, 2002, 2:09 am

As far I I can tell the clutch is ok and it comes in around 5000rpm. It does have an aftermarket helix but I have no specs on it. Most the time the sled runs great, but once in a while if you get off the throttle, and try to get back on it, it will bogg. I have put a new fuel pump on it, being that it feels like it is not getting gas.
Bruns
 
Posts: 1
Joined: February 1st, 2002, 12:17 pm
Location: Corunna, MI

ZL 440 bogging

Postby azracing » February 2nd, 2002, 5:49 am

Try taking off the air box and run it a short distance to see if there a restriction. I found this on a 1996 z440 just a few short weeks ago. I had to jet down the pto side 3 jet sizes to make it run 1/2 way decent. (With the air box back on.)Also make sure the spark gap right.
Ridin the F-N-7
azracing
 
Posts: 3
Joined: December 21st, 2001, 10:57 am
Location: Greenville,MI

ZL 440 bogging

Postby Bruns » February 2nd, 2002, 8:19 am

Ok, I tried removing the air box, and no good. It seems better but still there. I guess you could call it a flat spot in the carbs. From idle to maybe 5 mph and then accelerate thge flat spot shows up. Throttle past it, and its fine....
Bruns
 
Posts: 1
Joined: February 1st, 2002, 12:17 pm
Location: Corunna, MI

ZL 440 bogging

Postby azracing » February 2nd, 2002, 8:33 am

Make sure there is no moisture in the gas and none in the carbs. also make sure the belt tension is correct, this will make a bog from a dead stop. engagement also makes a differance, this should be around 4700-4800 rpms air screws 1.5 turns. ck belt alignment. ck motor mounts, if there boke you'll have a bog you cant't get rid of.
Ridin the F-N-7
azracing
 
Posts: 3
Joined: December 21st, 2001, 10:57 am
Location: Greenville,MI

ZL 440 bogging

Postby zr6wannabe » February 2nd, 2002, 2:49 pm

I have a 99 600 and same problem, and my dealer told me it is a saftey feature in the sled. My sled's little "safety feature" causes the sled to kill whenever I'm not literally pressing in and up on the throttle. I think you may find that pushing up on the throttle will stop it from bogging.
zr6wannabe
 
Posts: 1
Joined: January 22nd, 2002, 1:41 pm
Location: Minnesota

ZL 440 bogging

Postby snoguy14 » February 2nd, 2002, 3:13 pm

i know this will sound stupid but have you checked your low speed jet for junk? the low speed only comes in at 1/4 trottle and if you push through till you get to the main jet opening it will exibit the same type of bog.My 583 did the same thing till i cleaned the low speed jet now it's fine. just a thought.
I'm not fast, your just slow.
snoguy14
Member
 
Posts: 63
Joined: August 15th, 2001, 5:12 am
Location: sutton ontario canada

Next

Return to SnowmobileNews Forum

Who is online

Users browsing this forum: Bing [Bot] and 3 guests

cron