all honesty needed! mercury(yamaha) 90hp 4 stroke performance

Kracker Jack

Kracker Jack

God
Would you guys put this motor on your v20? My boat will be fished with very little weight most of the time. What kind of numbers would i get? Should i be patient and find another motor? This a pretty good deal on this one.
 
Yea.......im thinking i agree with you. Guess im trying to hard to find a motor. Everybody keep there eyes out for a motor for me. I will travel to get the right deal!
 
Theres a few who have 90's on there V's. It will NOT be a speed demon, and most likely have to be pushed pretty hard to just plane out level, but would do it. Propping would be the touchy part since you would be so close to the minumum HP the hull needs to run. Personally I would hold out for a 115 or bigger, but 140+ would be best.
 
Hold out for bigger. You don't want to go through the expense of buying and the trouble of hanging and rigging to find out it sucks. Ferm is right on the 140 or bigger. I love my 150 for the effiency, but if I did it again I'd save up for a 200 for more speed. I run pretty much lightly loaded as well.
 
yamaha 2004 hdpi 150hp

I have a buddy thats hooking me up with leads thats why im asking so many questions lately. Whats your guys opinion on a 2004 yamaha hpdi 150hp? I here some love them and some hate them.
 
agree with the rest, 140 minimum, not that you have to go fast, but works the engine less at cruising speed.
as far as hpdi's or optis, i think the way they work their magic is by running right on the edge blowing up. as long as everything works, it's golden. when it fails , it;s major.

if your looking at 2 stroke, i'd look at at 2000-2004 carbed. great performance and easy mechanics. just fuel mileage sucks. but lets face it 2 mpg vs 4mpg is a 100% increase, but it's still only 4mpg ,
takes ponies to push a boat and ponies like to eat.
 
Its funny because some people say they are flawless and others straight hate them. My buddy that hates them is a 4 stroke man.....and so is all the other guys. I even called all our lical yammy shops and they actually said out of all the HPDI motors yamaha is the best. The motor has less than 400 hours on it and i can get the motor with every thing included for 3500 bucks. Its a 2004. I think thats a heck of a deal. Its in my power range and my price range
 
kracker, don't know a lot about them (hpdi), but from what i've read and heard, the larger ones were more of an issue.

never heard a lot on the 150's

that seems like a good price. i would definitely use the oem oil.

is it a 25"?
 
Kracker,
If you get the HPDI have the injectors pulled and cleaned/flow tested every 5 years. One lean injector then it's BANG:cry:

Keep the fuel clean and the HPDI is a great engine.

I have to agree with Phat that a late model carb Yamaha would be the most reliable choice.
 
phatdaddy said:
kracker, don't know a lot about them (hpdi), but from what i've read and heard, the larger ones were more of an issue.

never heard a lot on the 150's

that seems like a good price. i would definitely use the oem oil.

is it a 25"?
Click to expand...

I have researched these motors for the past 2 days. And i hear nothing but great things about the smaller block 150's. As was stated the bigger blocks had the issues. The guy is having the entire fuel system gone thru and all fuel and vst filters replace and injectors done and new water pump. It is a 25" shaft so i will be building my transom up for now. And doung a solid transom probally after the fall. Motor comes with all gauges,harneses,oil tank and controls for 3500.00. Its a 2004 with 390 hours on it.
 
I work on few HPDI's. Like whats been previously said, the bigger engines(250-300) were the ones that give issues. The smaller ones seem to hold up well. But keep in mind, they are exspensive to run. Plugs are $$$ just like any DFI, the $300 high pressure fuel filter is now down to $90 and Yamaha DFI oil is expensive. Savings in fuel get eaten up by oil cost. I think they only offer the 150 HPDI now for the bass boat market. You don't see that many around any more. If you have high pressure fuel pump issues, its big money to have it rebuilt, even bigger to have it replaced, like over $2000 for some models. Like most new engines, they are intolerant of crappy fuel, but HPDIs are even more so. You don't see many getting rebuilt due to the preventative expenses to insure they stay together. Good motors, but its a gamble with high stakes
 
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