96 XLT SP bog - bogs on takeoff until you flip choke half way started by nightrainjoe
	January 11th 2009 at 10:56 AM Post #1
	nightrainjoe Starting Member 42 Posts Group: Members Member Since: February 1st 2007 Location: Summerset, South Dakota, USA Current Sled: 96 XLT SP 2008-2009 Miles: Deployed
	Okay here is my dilema, got a 96 XLT SP with a 97 bottom end (4th oiler) SLP pipes, ATACC. It will idle at 2000 rpm then once you go to take off it boggs and will almost die, however, if you flip the choke to half way real quick and then accelerate it will take off and run great. BUT when you stop it will be idleing at 4000 rpm. The other thing is I had to back the air screws out to 1 3/4 for it to run good and SLP's tuning says 1/2????? Carbs have been cleaned, both clutches rebuilt. This thing is giving me nightmares. I need some serious help on this one guys. Any inputs??? Could this be a crank seal?? I have sprayed cleaner on it while it is running and no difference. Rating: 0 Quick Edit Edit Topic

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	January 11th 2009 at 12:46 PM Post #2
	xpedge9765 New Member 80 Posts Group: Members Member Since: December 6th 2008 Location: Lakewood, Wisconsin, USA Current Sled: 03 ski-doo mxz 600 h.o 2008-2009 Miles: 1300
	we had the same problem on a supersport. never tried choking it halfway but my bro took the carbs off and found that the choke was sticking. dont know if that helps you any good luck Rating: 0 Quick Edit Full Edit

	January 11th 2009 at 12:58 PM Post #3
	FoxRacer13 Sledaholic #13 132 Posts Group: Members Member Since: October 28th 2008 Location: Dexter, Maine, USA Current Sled: 1991 Polaris Indy 500 2008-2009 Miles: 550
	Could be something within the primary clutch. My old indy was doing the same thing. I never had to choke it but it would bog down on takeoff then catch up after a few seconds. I guess it was the spring in the primary. 1991 Polaris Indy 500. Rating: 0 Quick Edit Full Edit

	January 11th 2009 at 6:29 PM Post #4
	700fusion whatever 42 Posts Group: Members Member Since: December 31st 2008 Location: washingtonville, new york, USA Current Sled: 2006 700 fusion 2008-2009 Miles: 1000
	ok u could have some crap in your pilot jets!! it could be your crank seal!! but i would take a close look at your carb boots u really have to take them off to look at them good and there is a oring behind the boot if im not mistaken i would have to say its a boot or the oring u definally have a lean problem u didnt mix up your carbs when u took them off did u let me no how u make out send me a pm i had a bunch of these old girls i will help u out the best i can when they run they run but when they dont it can be tricky Rating: 0 Quick Edit Full Edit

	January 11th 2009 at 9:48 PM Post #5
	mdmaniac Go Big or Go Home 2871 Posts Group: Members Member Since: December 9th 2003 Location: Blossvale, New York, USA Current Sled: sledlessss 2008-2009 Miles: almost 1k
	having to choke = have to richen = lean condition. Air screw = controls air flow from 1/8 - roughly 1/2 throttle. 1 3/4 turns on air screw = too lean = having to choke. Take apart your carbs, clean them all, set them to SLP specs. check all your carb boots, spray ether around your crank seal while idling and look for an indication of a rise in RPM = bad seal. I would start with the carbs though...Do you have any other mods other then the 97 base? 2006 Fusion 600HO -- B.D.F. Performance Package 162 1.45" Studs / Cobra 136" Track / TracksUSA extension C&A Pro Outlaws / 7.5" Shaper Bars Rating: 0 Quick Edit Full Edit

	January 12th 2009 at 12:54 PM Post #6
	nightrainjoe Starting Member 42 Posts Group: Members Member Since: February 1st 2007 Location: Summerset, South Dakota, USA Current Sled: 96 XLT SP 2008-2009 Miles: Deployed
	Quote originally posted by mdmaniac having to choke = have to richen = lean condition. Air screw = controls air flow from 1/8 - roughly 1/2 throttle. 1 3/4 turns on air screw = too lean = having to choke. Take apart your carbs, clean them all, set them to SLP specs. check all your carb boots, spray ether around your crank seal while idling and look for an indication of a rise in RPM = bad seal. I would start with the carbs though...Do you have any other mods other then the 97 base? I looked at it more yesterday and there is an oily film where it looks like the crank seal is possibly leaking. I sprayed carb cleaner behind it while it is running and it makes a notable difference in how it runs. I did pull the plug on that side and it did not look lean? I think I will replace the seal this week and see what happens. Rating: 0 Quick Edit Full Edit