Engine has less than 40hrs. problem started with oiling down the engine. checked filter, anti-syphon valve, hoses & connections. Cleaned and primed system. Ran fine 2 trips then oiled down again .Removed oil tank capped off lines and started mixing. Runs good up to 4200rpm acts like it has a govenor on it. can pump fuel bulb to check for pressure going down lake,no diff. Tried with oil side of vro open,no diff.Checked vent.Checked heat sensor. Has no missing & does not bog down. Customer getting frustrated. He took to dealer first, they told him all systems checked out fine. Engine is on a Triton. Was told this may have a rpm limiter for oil system.
