anybody know what the valve spacing measurements are for a 2006 Arctic cat 400 4x4 fis? Thanks

 

If you mean adjusting the valve clearance on a 2006 AC 400 4x4 , although i don't own a Shop Manual i do own a 2006 Arctic Cat 400 FIS Auto 4x4 my Dealer told me that both intake and exhaust valve clearance is ( 0.006 in. ) it should be the same if it's a manual or Auto shift model ; hope this help's and welcome to the forums !

williebee...........

 

do you know how to check the ignition coil on one? will the engine run very poorly with no spark or will it not run at all....?

 

Usually when the coil does start to fail the engine will start and run good untill the coil heats up , then it will stall and not restart until the engine/coil cools down before it will restart ; i don't have a manual for my quad the dealer didn't have one for the 2006 AC 400 FIS 4x4 when i bought it new in Feb. 2006 ; and she told me they usually it took AC 6 months to a year before they would have them on a new model because the 2006 AC 400 FIS 4x4 models had some big changes made to them from the 2005 model !

I have to take mine in soon to have them check my cooling fan it's been making a squealing noise for just the first few seconds then noise awayuntill it cycles back on again , i will check to see if they have them in stock when i take it in for the fan checkup ; in the meantime someone should just in with the info you need if not before i can get a manual i'll keep a close watch on your thread with the help you need and by the way welcome to the forums !

williebee.........

 

Williebee, the manual I have for 2006 machines (CD version) has the following valve tappet clearances:
400/500
Intake 0.05-0.10mm (0.002-0.004inches)
Exhaust (400) 0.22-0.27mm (0.009-0.0011 inches)
Exhaust (500) 0.17-0.22mm (0.007-0.009 inches)

So the 0.006 inches the dealer gave you is a bit wide for the intake and a bit tight on the exhaust. Not that it couldn't work but my experience has been bad things happen can happen outside those ranges.

Also, on your fan noise mine started a similar whinning/squeeling noise recently on my 400. I took the oil cooler loose and removed the fan to look at it. I found a few small pieces of grass or gunk (dirt/sand/grass) had built up around the fan. Cleaned it up and my problem was fixed. I could not see anything until I removed the fan. Plus since I had access to it I blew all the dirt out of the oil cooler. Amazing how much was there.

What got me to thinking about it was we have had this mountain erupting this spring. I guess it has put just enough of a dusting on my trails that it kicks up and has been making my air filter dirty much faster than normal. Then I heard that sound and I was like uh-oh! what else is that ash doing!

Not going to keep me from riding just making me clean my air filter about every other week. It is mainly getting my cloth pre-filter dirty.

SJ

 

Thanks for the input SJ i will check again with my Dealer for the 2006 O.E.M. Factory Service And Repair Shop Manual they should have them/or order one for me by now , in the meantime i will make a note about the info in your CD Manual as well as check out the cooling fan ; we've had severe drought in my part of Northwest Ga for the last 5 or 6 yrs. the worst i've seen in the 56 years i can remember so this very well be the problem i'm having with the cooling fan noise !

My Dealership is owned by Tammy Joe Kirk of " Kirk Racing " who started Racing Motocross at age 4 and by the age of 8yrs old she took over her father and older brother Tommy Joe Kirks Machine Shop custom building and setting up her own Custom Can AM Bike as well as all the other young racers bikes that she competed with ; she had a very long and successfull racing career that took her all the way to racing in the Nascar Bush Series Auto Racing untill her Sponser Maiden Form had to cut their budgiet forsing them to end their Racing program !

Kirk has worked on all the Major Brand's and still does so she could of given me the spec's for a the wrong brand engine , i've worked in the Small Engine Service And Repair Industry over 20 yrs myself and i've always set the valve Clearance in the middle of the Spec's to give room for wear ; while other Tech's have set them at the maximum clearance !

And thanks again for the input SJ you're a Great asset the forums !

williebee.......