McXpress 270 with 19t turbo and get them to change jet in plenium mcx-black jets and get an Rb3 or something that control standar jets in motor and map about 25-30% more fuel some new remaping. AND THEN FILL IT UP WITH E-85 ethanol pump(lot more cheaper filling)and blend it out with 98 okt pump gasolin 70% E-85 and 30% pumpgasolin becouse in cold days it start easier THEN BOOST About 1,25-1,3 bar and you got 300-310 HP with filling in a pump station,and it is more safer due to detonation.
MCX has map for E-85 to the mcx-box they can mail it to your local Mcx-...
I will have soon a fix to start it up in realy cooooold days.
Now it starts easy up to -10 and when i have ready the fix then it will start up with no problem in -35-40, over that temprature i will not go and ride snowmobile
If you get a second mcx box and a map for 270kitt in it 1,15 bar and a Rb3 then you can use map 2 in rb3 to switch over to standar map then the jets in motor is standar and switch over to second mcx box then you fill it up with just pump gas, then you have a flexi fuel Yamaha turbo machine!!
Exuse my english is not so good www.youtube.com/user/Tarzannr1
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