Hi, I also have one of these horrible things, and it is basically an old pre 06 design Yamaha F4 to F6 hp engine. Actually mine runs fine , it just sounds like a bag of nails!! The fuel valve control description in the Hidea manual seems to contradict the Yamaha manual. Yamaha indicate fuel valve closed to left, external tank valve fully right, and internal tank in mid position. Might be worth a try, good luck.
__________________
|