1978 invader and intruder 440 tracks

[Rodney19]

Hello, Is there a source for brand new tracks for these snowmobiles. We bought these at an auction and they had 400 miles on them and had not been used since 1978. I joined this site and read up on these "bikes". I read that they must have the crank seals replaced...I have brought many motorcycles back from the grave... so we bought a clutch puller and away we go...replaced all seals and gaskets, cleaned carbs, cleaned tanks, ran new fuel and oil lines...we put about 50 miles on them and with my need for speed I wanted to see if they could keep my interest...at 60 mph they got severe belt slap in the tunnel...I adjusted the tracks and at 60 mph all was good...at second burst to 60 belt slap again, this time it did not stop...1 of the metal bars came loose on one side and with inspection one is missing...these bikes look like brand new and the engines run great but it seams if I can't replace the tracks I'm dead in the water.....HELP!!!! We are in Ohio, my name is Rodney 330-904-6704

[JDmatt]

You mentioned metal bars - if your track looks like this kind, they were recalled and replaced with a all rubber track.  I don't know if any new tracks are available, but I have a used one if you are interested.  The track conversion also came with different size rear idlers and 4 instead of 3.  I also have a set of those with new bearings installed I can sell. 

[Lloyd (ljm)]

 
  Any 15*121    1 inch lug track like the new sleds use will work. Some of them you need to change some of the spacing of idler wheels.

 I haven't done the switch but others on here have.  Makes a great upgrade. 

 Lloyd

[Rodney19]

JDmat
Thanks I do have bars but they look to have only 1 rivet at each end and they look to be thinner bars

[Rodney19]

You mentioned metal bars - if your track looks like this kind, they were recalled and replaced with a all rubber track.  I don't know if any new tracks are available, but I have a used one if you are interested.  The track conversion also came with different size rear idlers and 4 instead of 3.  I also have a set of those with new bearings installed I can sell.

thanks JDmatt mine look different the bars have 1 rivet at each end, and bars are maybe thinner

[Rodney19]

 
  Any 15*121    1 inch lug track like the new sleds use will work. Some of them you need to change some of the spacing of idler wheels.

 I haven't done the switch but others on here have.  Makes a great upgrade. 

 Lloyd

thanks...do you know who I could call to buy what i need?

[kawhead]

pat k on this site had oem kaw track kits at one time, maybe trucker or interceptor 398 has contact info?

[Rodney19]

Hello, Is there a source for brand new tracks for these snowmobiles. We bought these at an auction and they had 400 miles on them and had not been used since 1978. I joined this site and read up on these "bikes". I read that they must have the crank seals replaced...I have brought many motorcycles back from the grave... so we bought a clutch puller and away we go...replaced all seals and gaskets, cleaned carbs, cleaned tanks, ran new fuel and oil lines...we put about 50 miles on them and with my need for speed I wanted to see if they could keep my interest...at 60 mph they got severe belt slap in the tunnel...I adjusted the tracks and at 60 mph all was good...at second burst to 60 belt slap again, this time it did not stop...1 of the metal bars came loose on one side and with inspection one is missing...these bikes look like brand new and the engines run great but it seams if I can't replace the tracks I'm dead in the water.....HELP!!!! We are in Ohio, my name is Rodney 330-904-6704

[Rodney19]

Hello, Is there a source for brand new tracks for these snowmobiles. We bought these at an auction and they had 400 miles on them and had not been used since 1978. I joined this site and read up on these "bikes". I read that they must have the crank seals replaced...I have brought many motorcycles back from the grave... so we bought a clutch puller and away we go...replaced all seals and gaskets, cleaned carbs, cleaned tanks, ran new fuel and oil lines...we put about 50 miles on them and with my need for speed I wanted to see if they could keep my interest...at 60 mph they got severe belt slap in the tunnel...I adjusted the tracks and at 60 mph all was good...at second burst to 60 belt slap again, this time it did not stop...1 of the metal bars came loose on one side and with inspection one is missing...these bikes look like brand new and the engines run great but it seams if I can't replace the tracks I'm dead in the water.....HELP!!!! We are in Ohio, my name is Rodney 330-904-6704

[Invader440]

 
  Any 15*121    1 inch lug track like the new sleds use will work. Some of them you need to change some of the spacing of idler wheels.

 I haven't done the switch but others on here have.  Makes a great upgrade. 

 Lloyd

Not totally true.  Arctic cat tracks have a different rail spacing.  Been a while but IIRC, they have a smaller rail center to center.

[DougKauer]

Madkawman, Those are two very excellent sleds.  They look to be mint and if so they are hard to find, especially with the covers.   

[Interceptor398]

Not sure if Pat K has anything left.  He moved on to a new hobby.  There are plenty of used tracks from Invaders around.  Just find a sled salvage yard ot Ebay.  A little patience and you will be up and running.

[gixxer6]

I have a couple real nice good used Invader tracks of you are in need.