1999 Indy 500 Idle Problems - HCS Snowmobile Forums

Polaris General Discussion This is a brand-specific forum. Posts on this forum are assumed to be questions aimed at similar model owners, and are not looking for comments of a sarcastic or "bashing" nature. This is a 100% NO BASH ZONE. Please be aware that if you violate this policy you are in danger of losing your posting privileges on this website.The calling out or posting of another members personal information IE phone number or address is prohibited. Sharing of private messages from site staff is against site rules and will be subject to banning from site temporarily or permanently.

Sponsored By: Reevu Rear-Vision Helmets & Altimate Boots

Reply
 
LinkBack Thread Tools
Old 02-24-2010, 03:16 AM   #1 (permalink)
Advanced Member
 
Join Date: Dec 2005
Posts: 37
Current Sled(s): '06 Classic 700
Previous Sled(s): 1999 XC 600, Ultra Touring
Location: Big Lake, MN
Favorite Riding Area: Northern Wisconsin
13-14 Mileage: 910
12-13 Mileage: 580
11-12 Mileage: 225
10-11 Mileage: 625
Age: 39
Riding Since: 1992
Default

A friend has got a 1999 Indy 500. It will not idle at all. As soon as you let off of the gas, it will just die. He can give it gas to keep it running and runs great at WOT. I've went through the carbs and everything was spotless. Main jet and pilot jet were all clear and no restrictions, needle and seat will hold close on pressure also. It was running fine until the end of last year when he was doing some drift busting on the second to last trip. Gas tank was drained and fresh gas was used. We're kind of at our wits ends as to why this thing would go from running perfectly to not idling. Any ideas or thoughts as to which way to procede will be appreciated.
crzytoad75 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 02-24-2010, 09:33 AM   #2 (permalink)
Advanced Member
 
dcorazal's Avatar
 
Join Date: Dec 2009
Posts: 44
Current Sled(s): 2001 XC 600
Previous Sled(s): 1998 XC 600
Location: MN
10-11 Mileage: 500
Age: 46
Riding Since: 1969
Default

Sounds like your on the right track. I would recheck the pilot jets use carb cleaner and blow compressed air in the pilot circuit. Also could be an air leak in a seal (carb boot, pto clutch seal, base gasket, etc.)
__________________
QUOTE
Quote:
Braaaap
dcorazal is offline   Reply With Quote
Old 02-24-2010, 11:30 PM   #3 (permalink)
Super Advanced Member
 
Join Date: Dec 2006
Posts: 280
Current Sled(s): 1999 600 XC
Previous Sled(s): 1985 440 Indy Trail, 1977 John Deer 300
Location: Manitoba
Favorite Riding Area: Snow
12-13 Mileage: 1060
11-12 Mileage: 33
10-11 Mileage: 1000
Riding Since: 2006
Default

Is your throttle adjusted correctly. I believe 0.030" between the block and throttle is the norm. This will allow proper activation of the throttle safety switches. Have you tried running it with the switches and kill switch unplugged?
The Hunter is offline   Reply With Quote
Old 02-25-2010, 02:51 AM   #4 (permalink)
Advanced Member
 
Join Date: Dec 2005
Posts: 37
Current Sled(s): '06 Classic 700
Previous Sled(s): 1999 XC 600, Ultra Touring
Location: Big Lake, MN
Favorite Riding Area: Northern Wisconsin
13-14 Mileage: 910
12-13 Mileage: 580
11-12 Mileage: 225
10-11 Mileage: 625
Age: 39
Riding Since: 1992
Default

We've kinda been leaning towards something in the carbs, since it's usually the culprit. I doubt if he's checked the cable and throttle safety. Though would the throttle safety only bother the motor on idle only? It'll run fine other than idle. I thought that the throttle safety was for wide open or close, not idle. Thanks for the replies.
crzytoad75 is offline   Reply With Quote
Old 02-25-2010, 10:08 AM   #5 (permalink)
Super Advanced Member
 
Join Date: Dec 2007
Posts: 175
Current Sled(s): 2003 Edge XC 600
Previous Sled(s): 1986 Polaris 250, and 2005 340 Classic
Location: Flin Flon Manitoba
Favorite Riding Area: Around the area of Flin Flon
11-12 Mileage: 250
10-11 Mileage: 550
Age: 19
Riding Since: 1995
Default

I would clean the carbs sounds like the idle circuit has some debris in it. That or the throttle freeplay like "The Hunter" said
framer__ is offline   Reply With Quote
Old 02-25-2010, 09:15 PM   #6 (permalink)
Member
 
Join Date: Feb 2010
Posts: 27
Current Sled(s): 2006 600 Switchback
Previous Sled(s): Alouette Jr. Brute
Location: Eagle River, WI
Favorite Riding Area: where ever there's snow
10-11 Mileage: 200
Age: 38
Riding Since: 1976
Default

sounds like too much free play in throttle cable and throttle switch is killing engine. free play should be about the thickness of a nickle, in other words you should be able to put a nickle between throttle lever and block, if its more than a nickle there in too much free play and cables need to be adjusted.
switch06 is offline   Reply With Quote
Old 02-26-2010, 01:31 AM   #7 (permalink)
fez
Super Advanced Member
 
Join Date: May 2006
Posts: 374
Location: mn
Default

QUOTE (CrzyToad75 @ Feb 25 2010, 02:51 AM)
Quote:
We've kinda been leaning towards something in the carbs, since it's usually the culprit. I doubt if he's checked the cable and throttle safety. Though would the throttle safety only bother the motor on idle only? It'll run fine other than idle. I thought that the throttle safety was for wide open or close, not idle. Thanks for the replies.[/b]
If the throttle safety is gone bad or sticky it doesn't know the difference between WOT and 1/64th throttle. If you can keep it running with a cunt hair of throttle but the second you let off it dies, then it is more than likely the throttle over-ride.
__________________
To be old and wise, you must first be young and stupid.
fez is offline   Reply With Quote
Old 02-27-2010, 11:19 PM   #8 (permalink)
Super Advanced Member
 
Join Date: Dec 2007
Posts: 175
Current Sled(s): 2003 Edge XC 600
Previous Sled(s): 1986 Polaris 250, and 2005 340 Classic
Location: Flin Flon Manitoba
Favorite Riding Area: Around the area of Flin Flon
11-12 Mileage: 250
10-11 Mileage: 550
Age: 19
Riding Since: 1995
Default

hahahaha a cunt hair of throttle
framer__ is offline   Reply With Quote
Old 02-28-2010, 05:48 PM   #9 (permalink)
Advanced Member
 
Join Date: Dec 2005
Posts: 37
Current Sled(s): '06 Classic 700
Previous Sled(s): 1999 XC 600, Ultra Touring
Location: Big Lake, MN
Favorite Riding Area: Northern Wisconsin
13-14 Mileage: 910
12-13 Mileage: 580
11-12 Mileage: 225
10-11 Mileage: 625
Age: 39
Riding Since: 1992
Default

Thanks for the replies guys. Ended up adjusting the throttle cable with no luck. Took carbs into local dealer and had them pressure tested for bad needle/seat, held pressure. Dealer didn't even charge us anything which was a very nice change of pace. He suggested adjusting the choke plungers. I adjusted them so that the cable wouldn't pull them up, no luck. Finally said screw it and turned the idle adjustment screws in until it idled. Ran fine the whole day. Get up the next morning only to find the water pump bearing had went and was spraying anti-freeze all over the place. Later that night another guy in the group with an Arctic Cat broke his clutch bolt and sent the primary into the belly pan for some pin ball action. What a weekend..... put on over 300 miles though even with all the wrenching and waiting for the truck and trailer to come.
crzytoad75 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -4. The time now is 02:25 AM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0