Whats your choice? Fuel, Oil & Ratio

[oldfart]

Lozza, because motor needs in for cooling and motor is constantly on the boil .......also note motor was killed for a plug ( looky )   

[oldfart]

Monaro , Excuse my ignorance and hyjack ......Is a cat-convertor designed to be some sort of after burner ?

[bazza]

same gas and oil and ratio as holeshot buddy-runs and starts sweet piston and barrelll always sweet.

[whitey 43]

When I used to race the shell series (QLD) in the late 90's, I ran Silkolene comp 2 plus & Shell 98 @ 40:1. I ran the whole series + practice sessions without A freshen up.When I pulled the motor down,the piston had A nice little tan burn pattern & the piston / ring were still well within servicable tolerances.Most of the oils these days are good, but you can guess what oil I still use...

[DR]

in the majority of oil pump supplied 2T engines (ala TS and TM) I use Valvoline 2 Stroke Racing Oil and the std pump output settings. The others (RM etc) get R30 or A747 at 20:1 with BP Ultimate. My 2 stroke equipment (Kawa and Husky) run pretty hard all day everyday year in year out and again it's Valvoline at about 17:1, and guess what..no smoke and great reliability