3 replies to this topic

[Toes In The Water]

This question is for anyone who has an Islandia with a Merc 240 EFI drive. I am beginning to suspect that I may have a problem with jet drive. According to my instruments the boat speed is about 7-8 MPH when the engine RPMs are 3000. Is that normal or am I correct in assuming that there maybe something wrong with the drive assembly? Lake Conroe is somewhat choppy so I am not sure if that has any effects on the boat performance.

Thanks looking!

[boyd]

We have a 2002 Islandia with the 240 EFI. We usually have 4-6 adults and can cruise at 35 mph @ 5000rpm. At W.O.T we can go
about 43mph @ 5500rpm. We did add a PLACE DIVERTER which is a single "trim tab" to increase performance and it helped. But this boat was designed for families with small children (like the water fountain) and not to be a ski/wakeboard speed boat.
I typically move from idle to 5000rpm to get up on plane and then back off to 3500rpm to pull a wakeboarder at 25mph. Hope this data helps compare to your experience.

[Whale watcher]

Hey Boyd. Does your boat max out at 5500 RPM? My 2001 Islandia only goes 30 mph and at 5300-5400 RPM. When I'm loaded it'll only go 15mph. If you top out at 5500RPM then I'll conclude that it's my impeller that is the problem.
Thanks!

[Rewsta711]

Boyd,
Curious what diverted you used. If it worked that well if would consider it. I am short and end up standing when the nose is above the horizon. Kills my legs and is not conducive to snuggle time with the wife.

Thanks