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1
General Discussion / Re: Boots
« Last post by mswyka on July 17, 2018, 05:36:00 PM »
Those look very nice.

I will say that I have never had a sweating problem with these particular boots.
2
Kawasaki snowmobile racing, the production sleds / Re: Racing the 340 Invader
« Last post by Interceptor398 on July 16, 2018, 05:18:46 PM »
Welcome to the site!!   Great 1st post so I added it to the racing thread.  Thanks
3
Kawasaki snowmobile racing, the production sleds / Racing the 340 Invader
« Last post by Interceptor398 on July 16, 2018, 05:17:51 PM »

bhurlin
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Re: Invader upgrade

« Reply #18 on: Today at 10:49:34 AM »


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There are a couple of things to get the speed out of the 340.

Just to understand the 340 was 56 hp stock. The rules stated that you had to have 55 hp to participate in the cross country. Kawasaki made a kit that consisted of a new pipe and some clutch weights that were available. It should be noted that you can add the intruder pipe for 2 additional horsepower.

Each pipe was good for about 2 mph. On a hard packed mile, you could hit 82 with stock gearing and pipe. The 55 mph pipe would drop 2 mph and the intruder pipe would add 2 mph up to 84 mph.

To get additional speed you had to add rpms. The way to do this is to tighten up the rear spring, I increased the rates to bring you up to 8800 RPM. The best gearing was to increase final drive gearing to improve off the line as well as the additional RPM's to pull on the top end. My racing top speed was 92 MPH with the 340. It would beat the Kawasaki reps 4/6 LTD on the top end. He wanted to buy my sled which I refused.

Sunday racing with this sled would bring Monday morning sales results at the dealership!!!
4
General Help / Re: Invader upgrade
« Last post by rminier on July 16, 2018, 03:52:29 PM »
 I believe this is the 1978 Winnipeg to St. Paul race:
# 49 Robert Heinen, Avon, MN
# 147 Dave Corbett, Winnipeg

5
General Help / Re: Invader upgrade
« Last post by rminier on July 16, 2018, 03:28:31 PM »
 Very cool information.. 8)
Welcome to the site.
Please share more sometime.
Did you ever try the Winnipeg to St. Paul race?
6
General Help / Re: Invader upgrade
« Last post by bhurlin on July 16, 2018, 10:49:34 AM »
There are a couple of things to get the speed out of the 340.

Just to understand the 340 was 56 hp stock. The rules stated that you had to have 55 hp to participate in the cross country. Kawasaki made a kit that consisted of a new pipe and some clutch weights that were available. It should be noted that you can add the intruder pipe for 2 additional horsepower.

Each pipe was good for about 2 mph. On a hard packed mile, you could hit 82 with stock gearing and pipe. The 55 mph pipe would drop 2 mph and the intruder pipe would add 2 mph up to 84 mph.

To get additional speed you had to add rpms. The way to do this is to tighten up the rear spring, I increased the rates to bring you up to 8800 RPM. The best gearing was to increase final drive gearing to improve off the line as well as the additional RPM's to pull on the top end. My racing top speed was 92 MPH with the 340. It would beat the Kawasaki reps 4/6 LTD on the top end. He wanted to buy my sled which I refused.

Sunday racing with this sled would bring Monday morning sales results at the dealership!!!
7
General Discussion / Re: Boots
« Last post by Interceptor398 on July 15, 2018, 09:44:04 AM »
I too have Sorel boots but my feet sweat in them unless it is really cold and I am not moving around too much.  I have been wanting a pair of these  http://www.irishsetterboots.com/USD/product/hunting-boots/00860-elk-tracker-gtx-860   but they are a bit spendy.
8
General Discussion / Boots
« Last post by mswyka on July 15, 2018, 06:40:40 AM »
Now I realize that it is currently about 90 degrees in the shade, but is it ever really too early to start preparing for winter?

My question today is about boots.  I have this pair of Kaufman Sorrells that is now 30 years old.  These boots have been outstanding.  They are a little large, but my feet have never been cold.  And, as with most things, I find that the rubber in the boots is breaking down and I am fearful that I will need a new pair soon, if not this year.  I started searching last year and these boots are no longer available.

I would definately appreciate insight from the group on what you have found that is currently available that works well.
9
Picture of the week / Re: Picture of the week, here we go!
« Last post by Interceptor398 on July 13, 2018, 07:18:56 AM »
https://www.tumblr.com/video/fanboymcsnotwhirler/175621510526/500/
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Picture of the week / Re: Picture of the week, here we go!
« Last post by Interceptor398 on July 06, 2018, 03:08:34 PM »
https://www.youtube.com/embed/KbMYzMUu06Q
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