Re: Problems with motor at high speed
- --- In firstname.lastname@example.org, "Ron Buckles"
> Hi guys,
> Tooling home yesterday with my Tohatsu M40D (40HP) wide open when
> once it started switching off and on (full power to no power andback)
> about 2 twice a second. Dramatic to say the least. I back off onthe
> power and it worked OK at about half power, but anything abovethat and
> it would start the on/off oscillation again. Anyone seen thisbefore?
>Most likely fuel starvation. I found the little non-return valve
ball in the fuel line bulb had come dislodged and was blocking the
bulb outlet. This only happened at full throttle and not at lower
revs and when the bulb was lying with the outlet lower than the
inlet. You can check this out by feeling or shaking the bulb and if
you set it vertically with the outlet uppermost it will allow fuel
to be drawn through at full revs. My engine died completely when
this happened and it took a little time to realise what had happened.