Yamaha HPDI injectors

**Tiller Guy** · 04-22-2016, 06:19 PM

I'm thinking about buying a boat that has a early 2000's VMAX 200 hpdi that's been sitting. It's running rough and I'm assuming the fuel system needs cleaned out. Are the injectors serviceable or should I consider replacements? I haven't checked injector prices, but I have a feeling it's gonna be expensive. I don't anything about these motors and I'm nervous about the deal.

**vnemous** · 04-22-2016, 06:56 PM

They can be flowed and cleaned if necessary

**Tiller Guy** · 04-22-2016, 08:06 PM

After doing some more reading it looks like this motor is a potential nightmare full of filters and expensive pumps.

**Markus** · 05-01-2016, 02:32 PM

Originally Posted by Tiller Guy

After doing some more reading it looks like this motor is a potential nightmare full of filters and expensive pumps.

It is the simplest of the DFI designs, but certainly more expensive to fix than a non-DFI engine.

**150aintenuff** · 05-06-2016, 12:43 PM

HPDI pumps are an easy clean/ rebuild if needed.. YES THEY ARE SERVICABLE!!! contrary to what yamaha will tell you.. and the injectors and the 4 hidden bqasket filters are where issues can cause major engine failure.. clean and flow them and remove the filters within the HPDI pump and you wont have any issues.. DO ALL THE FILTERS!!! not just the main clear view filter.. there are like 15 filters total in them..

**Tiller Guy** · 05-06-2016, 05:04 PM

I spent a lot of time studying everything and it's not bad. The motor is a 2002 2.6 200hp and I would rather pay a little more for the same boat that already has a 3.3 250 hpdi. Is there any reason to consider the 2.6 over the 3.3? The 200hp pushes it a little over 60 mph and that's not too bad for a fishing boat I guess. 70+ would be really fun though LOL

**150aintenuff** · 05-07-2016, 02:52 AM

i wouldnt expect 70+ maybe 68-70.. but its possible to get a stronger 250 HPDI.. and see more.. the 3.3's were finiky.. ive fixed 4X the 3.3's than i have the 2.6... FWIW

**Greg G** · 05-07-2016, 06:32 AM

Originally Posted by 150aintenuff

HPDI ....... DO ALL THE FILTERS!!! not just the main clear view filter.. there are like 15 filters total in them..

Holy moly, 15 in total? I wonder if there is a picture out there somewhere pointing to where all these filters are located on the powerhead

**150aintenuff** · 05-07-2016, 09:15 AM

MAIN FILTER-- low pressure fuel pumps--VST filter--- mid pressure pump---- mid pressure inline filter--- High pressure pump--4 basket filters---fuel rails---6 basket filters in injectors

that the ones off top of my head... not to mention the 3 OIL line filters, one at back of tank, one at under cowl oil tank and one right before main oil piump

**Tiller Guy** · 05-09-2016, 12:46 AM

Originally Posted by Greg G

Holy moly, 15 in total? I wonder if there is a picture out there somewhere pointing to where all these filters are located on the powerhead

You tube has videos.

**cali kid** · 05-20-2016, 06:52 AM

Originally Posted by 150aintenuff

HPDI pumps are an easy clean/ rebuild if needed.. YES THEY ARE SERVICABLE!!! contrary to what yamaha will tell you.. and the injectors and the 4 hidden bqasket filters are where issues can cause major engine failure.. clean and flow them and remove the filters within the HPDI pump and you wont have any issues.. DO ALL THE FILTERS!!! not just the main clear view filter.. there are like 15 filters total in them..

Try to stay away from the 3.3. Especially the 250. Was a disaster. 2.6 much better package. With clean filters, the 200 is a potent, and reliable, motor.