HPDI Yamaha

Tillerboy · 02-11-2004, 09:33 AM

Need some testimonies if they are available.

Does anyone on this board have a 200Hp or larger Yamaha HPDI? If so how has it treated you? How long have you had it?

I am buying a new boat and am trying to decide which power package to go with. My previous boat has a 200 HP Vmax Yamaha with a jet and has been fantastic and flawless. I'm not convinced 4 stroke is the way to go with a jet. So I'm either buying another Vmax or going to the HPDI.

I'm concerned about more maintenance associated with the high fuel pressures these things create.

Any help would be appreciated.

Thanks.

TB

Denali · 02-11-2004, 01:05 PM

TB,

I have the 200hp HPDI on a 21ft Duckworth with the bracket. I've had it for 3 years and it has been flawless. I have a 4-blade stainless prop and top speed is around 52MPH. Could get a little more with a different prop. The biggest difference you will notice is the fuel consumption. It is outstanding vs carbed 2-stroke. Also easy starting (no choke) and no smoke. Very quiet as well. I have several friends that run them on the East coast that have over 500 hours on them with no problems. Good motors.

KingCap · 02-11-2004, 07:39 PM

Tillerboy, I have a 250 HPDI on a 22` North River Scout . Great motor , Only had it a year so far . The Yamy HPDI has been around awhile so they are pretty dependable.They are fairly quiet and do start up nice. I do about 55mph but have reproped and expect a little more out of her .Can`t go wrong with a yamy.

adfluvial angler · 02-11-2004, 07:54 PM

Check out the performance bulletins on the yamaha web site. They compare the mph, gallons per hour, mpg, and noise (Db) at fixed rpms for the 2 motors on the same boat. They may not have tried them on the boat you're considering, but they have done the side-by-side comparisons for a bunch of boats. It is very informative.
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