air box

General topics related to John Deere Snowmobiles
Post Reply
sportfire1961

air box

Post by sportfire1961 »

can anyone out there get me a picture of an airbox off of an 80 or 81 sportfire? Mine didn't have one on it when i got it and i don't know what i'm looking for. It has been suggested to me that I buy a pod filter from dennis kirk. Do you have to re-jet the carb to do this? Help!
X's&O's

air box

Post by X's&O's »

Here is one it says its for a TF BUT the air Box/Silencer for the TF/SF look the same. The only thing that this one is missing is the "J" shapped tube that comes out the side. ( DK trader ebay#4586538492).
User avatar
JoeRainville
Posts: 4355
Joined: Tue Aug 02, 2005 12:00 am
Real Name: "John Deere Joe"
Location: Fort Worth, Texas
Contact:

air box

Post by JoeRainville »

Hi Guys,

The Trail and Sportfire use different air boxs. The Sport unit is thinner than the Trailfire box. I am not sure if the larger Trailfire box fits into to the Sportfire, as the motors are different. The Sport "T-7" is probably a little wider than the Trail's "T-1" motor.

Also, the Sportfire uses a "power jet" carb, and should not be run without the air box since the power jet circuit needs a slight vaccum at the carb inlet to draw fuel out the the fuel bowl.

If you decide to use an aftermarket air inlet, you would need to check your jetting at WOT so you do not run lean and burn a piston.

Good luck with your sled,
-Joe Rainville
"Tech-Ed"
Honorary Tech Editor

Chuck Norris doesn't get frost bite. He bites the frost.
sportfire1961

air box

Post by sportfire1961 »

Joe, do you know what jets i should use? since i'm not having much luck finding an airbox I will probably use a mini pod filter from dennis kirk. Any suggestions?
Thanks, Mike
wes

air box

Post by wes »

i might have an extra air box for you i will have to look to make sure.
sportfire1961

air box

Post by sportfire1961 »

that would be great, let me know, thanks!
wes

air box

Post by wes »

i do have one just needs cleand up.
huston14
Posts: 22
Joined: Thu Oct 04, 2007 12:00 am
Location: dakota Il.

air box

Post by huston14 »

i have one to if you need it
Post Reply