Page 1 of 1

Oil to fuel ratio?

Posted: December 21st, 2013, 8:50 am
by trdehmer
I have a 72/73 Kitty Cat. What is the recommended oil/fuel ratio??

Thanks!

Posted: December 23rd, 2013, 1:49 pm
by steve0
Looks like 50:1 would do the trick:

viewtopic.php?t=1791&highlight=mix

Re: Oil to fuel ratio?

Posted: December 29th, 2016, 8:48 am
by snow
25 to 1oil to gas

Re: Oil to fuel ratio?

Posted: January 3rd, 2017, 12:27 am
by Jonn
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)

Re: Oil to fuel ratio?

Posted: January 3rd, 2017, 5:44 pm
by earl
nice clear explanation thanks