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

[inaforty]

Kracker,
If you get the HPDI have the injectors pulled and cleaned/flow tested every 5 years. One lean injector then it's BANG

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.

[smokeonthewater]

Damn... If you decide to pass on it please send me the info.

[Kracker Jack]

Originally Posted by smokeonthewater

Damn... If you decide to pass on it please send me the info.

I will, im waiting for him to call me back from yesterday.

[bradford]

Pipedream runs a HPDI I believe, I'd be interested in hearing Spareparts opinion as well.

[spareparts]

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

[Kracker Jack]

Man yall are making me nervous!!!!!! Should i keep looking?

[cterrebonne]

Originally Posted by Kracker Jack

Man yall are making me nervous!!!!!! Should i keep looking?

For 1500 it's a good price. Just run some clean oil. That 2m is very dirty and will cause carbon build up on a DI engine.