Gas mixtures

durk85

New Member
Sep 30, 2009
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I have a 1990 Blaster. I was told to use mixed fuel even though its injected. Is this true? If so, what is the mixture ratio??
 
If the injector works use it.

I always just mix my fuel 50:1 and disconnect the oil injector and be done with it. That way you know that your motor is getting the lube it needs.
 
If its still oil injected then you don't need to pre mix your fuel. If the injector has been disconnected then you need to premix 32:1.
 
Bel Ray MC 1 50:1 is perfect for my Banshee and Blaster. I ran 50:1 for 5 years in my 96 with no problem and 50:1 for the last two years in my wifes 2000 Blaster and my 2000 Banshee.
 
BTW I worked at a Yamaha dealership in the service dept. for 5 years, 2 of that as service manager. I don't claim to know everything but I used to deal with big time engine builders and they recommend the 50:1 ratio. As long as your jetted correctly you won't have a problem.
 
i use 50:1 to break it in , only time i could see 50:1 is an old outboard , if you can make it work more power to you , mine runs amazing with 32:1 93 octane with Lucas octane booster
 
in responce to the post , GET RID OF THE OIL INJECTION ASAP!!! they always fail sooner or later , pull the tube seal it and premix , if you dont youll be saying f*ck he told me so later : )