On my 1986 it 200 i run the good klotz oil at 50:1 but if u run a cheaper oil i would run a 36:1 or 40:1 ratio the klotz is expensive but is the way to go because it extends engine life and smells good too
The 1984 model, 200 hp Yamaha requires a 50:1 ratio.
10w-20
The BW 200 has 15.2 Horse power.
http://www.yamahaoftroy.com/fiche_select2.asp?category=Motorcycles&make=Yamaha&year=1986&fveh=162
i have a 1985 Yamaha yfm 200, it is gas, no fuel/oil mix needed. just put in 93 octane. unless u have a 2 stroke then its usually a 50:1 or 40:1 mixture
The recommended fuel/oil ratio for a 200 Johnson 130 horsepower outboard engine is 50:1. This ratio should always be used or engine damage can occur.
1:100....
Top speed is around 45 mph with stock gearing.
I bought one of these new in 1986, from memory I think 8.5
Gap is .20 or .30 depending on fuel mix.
32 to 1 which is one gallon of gas to 4 onces of oil
200 divided in the ratio of 19 = 10.526315789473685