Can anyone comment on why my motor would only start bogging down after an hour or two of skiing and tubing? It always starts easy, runs smooth, has great take off, but after about 1 to 2 hours of usage on the lake, I'll notice it suddenly takes longer to get on plane, and then it will surge and bog down if I try and push it above 2500 RPM. I can stay on plane at around 2100 RPM so it hasn't ruined our day.
I've read other posts, and understand the possibility of water in the fuel (I will check fuel separator the next time it happens), and possible gunk on the inlet screen in the tank (I will try running on a portable tank) - but why it would it consistently run great for an hour or two before it starts doing this. Once it starts doing this- it keeps doing it, so we just drive it back to the slip and leave it alone. If we come out the next day- it's fine for another hour or two of use.
When it gets in this mode- trying to run it between 2500-3000RPM will cause it to basically cycle where it's as if I'm backing off on the throttle and it recovers back and forth on it's own. If I push it to WOT I assume it will die although I haven't kept it WOT long enough to stall, when it's in this mode I immediately back down.
Temperature stays between 145-155 when running, and I compression checked at the beginning of the season and everything checked out fine.
I've read other posts, and understand the possibility of water in the fuel (I will check fuel separator the next time it happens), and possible gunk on the inlet screen in the tank (I will try running on a portable tank) - but why it would it consistently run great for an hour or two before it starts doing this. Once it starts doing this- it keeps doing it, so we just drive it back to the slip and leave it alone. If we come out the next day- it's fine for another hour or two of use.
When it gets in this mode- trying to run it between 2500-3000RPM will cause it to basically cycle where it's as if I'm backing off on the throttle and it recovers back and forth on it's own. If I push it to WOT I assume it will die although I haven't kept it WOT long enough to stall, when it's in this mode I immediately back down.
Temperature stays between 145-155 when running, and I compression checked at the beginning of the season and everything checked out fine.
