yamaha 40 hp . what mixture

sithethai

Recruit
Joined
Jul 6, 2009
Messages
2
i have a 2 stroke old engine , which i have been running on 50 / 1 mixture,
but today i saw a sticker inside saying 100/1 mixture.
any advise please?
 

xhunter911

Cadet
Joined
Jul 5, 2009
Messages
9
Re: yamaha 40 hp . what mixture

I think 100:1 is for the engines initial break in period, but I could be wrong....
 

New2me

Seaman
Joined
Feb 6, 2009
Messages
66
Re: yamaha 40 hp . what mixture

50:1 is what you need to run, at 100:1 I would think could burn it up.How old is old though.
 

sithethai

Recruit
Joined
Jul 6, 2009
Messages
2
Re: yamaha 40 hp . what mixture

thanks everyone for your replies,
as i have been using 50/1 for the last 6 months without any problems(allbeit a wee bit smokey, but old engine) i think i will stick to that.
rgds simon
 
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