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View Full Version : Fuel Ratio In A 86 Tri-z???



gixxer2006
01-28-2006, 09:54 PM
I just bougt a 86 tri-z 250..and i wondering what is the best fuel ratio to use?

Kintore
01-28-2006, 11:52 PM
Says 20-1 in manual, but that was back in the day with crappy oils, A good synthtic I run 32-1. Personally im using amsoil.

3leggeddog
01-29-2006, 12:09 AM
well i have always run mine 50-1.but thats me.

twgranger
01-29-2006, 10:25 AM
Im running 32-1 with Klotz R50 synthetic oil in my 85.

Derrick Adams
01-29-2006, 10:36 AM
50-1 here w/ Blue-marble.

250r'en +TCB
01-29-2006, 10:41 AM
you guys back it off 50:1!?!?!?!?!?! I Have my R at 28:1, I was hesitant to back it off to 32:1............I proubly will end up doing it eventually! But 50:1!?!?!?!?!

Derrick Adams
01-29-2006, 11:20 AM
Been racing them wide-open for 2 years now with no problems! Oils nowadays are way better than 20 years ago. Amsoil has some race synthetic 2 stroke oils they recommend at 100-1!

You run a tank of Blue-Marbel or Amsoil at 40-1 thru your bike and you'll never go back. You'll feel the power increase under your butt!

TimSr
01-29-2006, 11:46 AM
This question has been posed SO many times, and you get a few hundred answers at each one.

I think everyone agrees that it depneds on the oil you use, and not the machine you are running it in.

With that stipulation, you run general purpose 2 cycle oils at 20-25:1. Non-synthetic factory oils such as Yamahlube, and the Honda stuff runs about 32:1. High performance racing oils should always be run at 50:1 or leaner. They dont burn off as quickly and over mixing will result in a crank full of residual oil and lots of smoke that will never go away. Its comes in 12.8 or 13 oz bottles for a reason. One bottle to a 5 gallon can. If you take your top end off, and you can dump a half quart of oil out of your crank, you are mixing too much oil!

twgranger
01-29-2006, 10:36 PM
I have been running mine for 2 years with no problems running 32-1 with klotz R50 synthetic oil. No build up on mine.