The filter/separator should be after the priming bulb. Fuel tank, primer bulb, filter/separator, engine.
Mine has worked well in this configuration.

Hope this helps

I also like the Suzuki engines. I have several friends with them and they all seem to have very little problems and good performance. but the weight savings of the new Yamaha is what really got my attention. Until this year a 260 lbs, 70 HP 4 stroke was not avalable. Of course it is the first year o...

I have been doing some research on repowering my 2002 26X when I stumbled across the new Yamaha F70. I think I found what I have been waiting for. Finally a 70 HP 4 stroke that is nearly the same size and weight (260 lbs) as my Yamaha 50 High Thrust, uses the same controls, has the same high thrust ...