Originally Posted by C-NUMB
The yam 90 is surprisingly "economical" considering its a carbed 2 stroke. The WOT consumption, low to mid thirties l/h is not far off compared to modern engines
Had the 90 Yam on my Searider and used 0.5l/km .
On the same boat I installed later an ETEC 90 - some of you may be remember the boat from the Round Ireland - where I used with the ETEC 0.44l/km .
So I would consider the Yam 90 as quite economical .
For the difference to a more expensive motor you can pay for a long time your fuel bills .
The problem with the Yam 90 - it is harder and harder to find a good one ..
BTW - my Yam F100 4 stroke uses on another boat also exactly 0.5l/km ...