TZR Forum

TZR Specific => 1KT 2MA 2XT 3XC (R1Z) etc Range => Topic started by: semaj on May 15, 2018, 06:02:55 PM

Title: premix safe ratios
Post by: semaj on May 15, 2018, 06:02:55 PM
Can anyone advise on what premix ratio should be for my track 2ma. I have only just finished it and tried 30:1 but is very smokey and a lot of oil is collecting in the tailpipes. Is 40:1 a step to far??
Title: Re: premix safe ratios
Post by: Mr.Cool on May 16, 2018, 07:09:01 PM
30:1 is a lot. I'm running 40:1 in my race bike right now but I'll be moving to 50:1 as I could see from my tear down from last year that even 40 was excessive.
Title: Re: premix safe ratios
Post by: Mick on May 16, 2018, 07:32:58 PM
40:1 on my trackbike..
I took head off last week for 1st time in 5 years due to head gasket leaking..
L/H cyl
Title: Re: premix safe ratios
Post by: Mick on May 16, 2018, 07:34:52 PM
L/h cyl

I've been Putoline Caster R for years in engine.

Title: Re: premix safe ratios
Post by: Mick on May 16, 2018, 07:37:46 PM
R/H cyl
Title: Re: premix safe ratios
Post by: semaj on May 16, 2018, 10:14:15 PM
Thanks for replies. I will give it a try at 40:1 and see if it cleans up a bit.
Title: Re: premix safe ratios
Post by: evan_calgary on May 16, 2018, 10:34:29 PM
Also remember less oil doesn't mean more power...
Title: Re: premix safe ratios
Post by: mboddy on May 16, 2018, 11:43:37 PM
Also remember less oil doesn't mean more power...

The dyno shows that 24 to 1 gives best power with the oil I use.