"Hi,
running a 2008 brand new Tohatsu 90 TLDI on an 18foot open boat and being coming across something weird. When running at relatively low revs, say 1400-2200 for various trolling speeds after say 15 minutes at randomly the engine appears to choke for a second or two and then resume normally. The best way to describe is would be the opposite to a surge, almost like the choke flicked on.
At cruise and flat out runs fine with no such issues. Fuel tank is vented, running to a Racor and then through an inline Lowrance fuel flow meter, but don't think either of those are causing the problem.
Boat is currently over-propped and running just shy of 5200rpm, so have a 13P on the way to replace the factory 15P, not sure if this is a contributing factor or not.
Due for the 10 hr service shortly, but wondering if anyone knows what this might be.
Skip"
running a 2008 brand new Tohatsu 90 TLDI on an 18foot open boat and being coming across something weird. When running at relatively low revs, say 1400-2200 for various trolling speeds after say 15 minutes at randomly the engine appears to choke for a second or two and then resume normally. The best way to describe is would be the opposite to a surge, almost like the choke flicked on.
At cruise and flat out runs fine with no such issues. Fuel tank is vented, running to a Racor and then through an inline Lowrance fuel flow meter, but don't think either of those are causing the problem.
Boat is currently over-propped and running just shy of 5200rpm, so have a 13P on the way to replace the factory 15P, not sure if this is a contributing factor or not.
Due for the 10 hr service shortly, but wondering if anyone knows what this might be.
Skip"