Optimax Fuel System

**InjectorService** · 10-20-2020, 02:10 PM

Some of the stuff you find in a fuel system. This is all off of a 300xs. Less than 200 hours on this one.

Before Cleaning:

After Cleaning:

**XstreamVking** · 10-20-2020, 05:28 PM

Yikes, good reminder. Thanks..

**TooStroked** · 10-20-2020, 06:16 PM

Holy crap, what are they running for gas, Starbucks Dark Roast?

**Duro78** · 10-20-2020, 06:37 PM

Was shocked how bad the air injectors actually get

**David** · 10-20-2020, 08:13 PM

How many hours between cleaning is recommended?

**Capt.Insane-o** · 10-20-2020, 09:01 PM

Looks like Mercs tar like DFI oil. Pennzoils XLF oil is what you want to use in flopti's ....and Tstat updates.

**CUDA** · 10-21-2020, 07:27 AM

I bought three 250's off a center C fishing boat, 460 hours $11,000

If I could get them out with out destroying them I would have loved to send them out...SALT

Ebay used ... yes I had those cleaned first...

**InjectorService** · 10-21-2020, 09:15 AM

Originally Posted by David

How many hours between cleaning is recommended?

I would say it all depends. Honestly most people don't clean them until there is a big issue. The 300xs guys seem to get it, and usually have them cleaned every couple seasons or 100-200 hours I would say. Its all about what you run through them. Have bad gas, or a failed compressor and you will have something that looks like this. The air system has a major lack of filtration too so any dirt/dust/bugs in the lines get sucked right though.

EDIT: Also these motors like to run. Sitting is not doing these engines any favors.

**InjectorService** · 10-21-2020, 09:20 AM

Originally Posted by Capt.Insane-o

Looks like Mercs tar like DFI oil. Pennzoils XLF oil is what you want to use in flopti's ....and Tstat updates.

Care to elaborate on this? First I hear of it.

**InjectorService** · 10-21-2020, 09:24 AM

Here's another one I've come across. Condensation / water got the best of this air compressor spring.

**InjectorService** · 10-21-2020, 09:36 AM

Originally Posted by CUDA

I bought three 250's off a center C fishing boat, 460 hours $11,000

If I could get them out with out destroying them I would have loved to send them out...SALT

Ebay used ... yes I had those cleaned first...

Couldn't get the injectors out? What did you end up doing with the motors?

**CUDA** · 10-21-2020, 10:56 AM

Got them out

but it was not pretty, up north salt kills the cars

Down here boats / electronics

**altamate** · 10-21-2020, 02:19 PM

Ok, I've got a 2007 250 pro xs with 150 hours on it, runs fine. I had the water pump replaced and the leg resealed(by a local shop) as preventative maintenance last fall, as far as I know it needs nothing. I'm a hobby mechanic, do oil changes on the leg, winterize the motor myself each fall, One of these days I'll replace the spark plugs. I've done a lot bigger mechanical jobs on cars and equipment, but getting older and now more likely to pay people to do work for me.

If I've decided to get the air compressor system and F.I. system cleaned/checked out, what do you recommend and what services do you offer? If I bring you the motor can you look after everything and if so for approximately how much?(I'm in Alberta)

If I remove all the parts and send them to you, how much is that going to cost(approximately) and how tricky is the job, especially the putting back together part? Special tools?