Will running 40:1 do a lot of harm to my 250R?

 

It shouldnt hurt it one bit. Ive been using Torco GP-7 at 40-1 for over 25 years in all my 2 strokes. Even my blower and edger run on it at that ratio.

 

That is precisely why I asked. I have an edger and weed whacker that are two strokes and they run 40:1, so I was getting tired of having an extra gas can w/ 20:1. I figure it's better to be too rich than too lean. Didn't know if it would affect the rings or exhaust down the road though.

 

i run my r at 50:1 with amsoil dominator. even at that ratio ,it will smoke some if you lug it. you will be fine with 40:1 with a quality oil.

 

I always run mine 40:1 with Maxima Castor 927.

 

shorter engine life less oil = less lubrication .

 

I dunno guys - Ive been using golden spectro at 32:1 on my ride...

I am on the original motor (yes, thats 21 yrs of riding at least once a month)...