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Oil to fuel ratio?

Kitty Cat chat area, almost anything goes but keep it clean and snowmobile related.

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trdehmer
Posts: 17
Joined: Fri Oct 29, 2010 1:26 am

Oil to fuel ratio?

Post by trdehmer » Sat Dec 21, 2013 1:50 pm

I have a 72/73 Kitty Cat. What is the recommended oil/fuel ratio??

Thanks!


steve0
Posts: 62
Joined: Fri Dec 26, 2008 7:49 pm
Location: Cromwell, CT

Post by steve0 » Mon Dec 23, 2013 6:49 pm

Looks like 50:1 would do the trick:

viewtopic.php?t=1791&highlight=mix

snow
Posts: 10
Joined: Thu Dec 22, 2016 1:07 pm
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Re: Oil to fuel ratio?

Post by snow » Thu Dec 29, 2016 1:48 pm

25 to 1oil to gas

Jonn
Posts: 129
Joined: Sun Feb 06, 2005 5:36 am
Location: North of MPLS/St. Paul

Re: Oil to fuel ratio?

Post by Jonn » Tue Jan 03, 2017 5:27 am

Let me explain about gas/oil ratios. The correct ratio is 50:1, but I always run 40:1 or so to be safe.

One of my customers work for a testing lab where they annually test racing oils and I learned a lot from him, including why Arctic Cat had so many different gas/oil ratios for Kitty Cats over the years.

The early 70s kitty cats called for 23:1, then as time went on they called for 25:1, 32:1, 40:1, and then finally 50:1. When I said the Arctic Cat engineers were nuts for having so many ratios he laughed and explained that the quality of oil mixtures have gotten so good over the years that it takes less percentage of todays oil to provide the same lubrication value as lots of oil from the 70s.

He explained that if you purchase a good quality 2-stroke oil now days you can run 50:1, especially in light of the fact that Arctic Cat installed a #72.5 main jet that already runs the engine rich. I personally have still mixed my gas somewhere between 40;1 and 50:1.

I hope this helps those in need to not foul out your Kitty Cats. ;-)

Jonn (Olson Brothers)

earl
Posts: 27
Joined: Mon Oct 05, 2015 12:50 am

Re: Oil to fuel ratio?

Post by earl » Tue Jan 03, 2017 10:44 pm

nice clear explanation thanks

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