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**boscoe99** · 09-21-2014, 05:03 PM

There are pullers available. Some will use a screw that gets threaded into the filter basket and then use a pair of vice grips to pull on the screw.

https://www.youtube.com/watch?v=V2sD5UsOnJs

I would recommend that the injectors be sent out for cleaning and flow testing at which time new filter baskets will be installed as part of the process.

Brucato High Performance Products and Service. Brucato SVS (air intake system) and PCU (adjustable ECU) for Mercury EFI Outboards.

**rodbolt17** · 09-22-2014, 12:24 AM

dunno.
boscoe can buy all the pullers he wants.
I simply pop them out with a pocket knife.
you can pop them out ,clean and reinstall or buy the 98-2000 mercruiser 7.4 injector filters.
however I am not a field tech like many other posters.

I sometimes wonder if some posters actually work in the field.

but the OX66 injector filters can be popped out,cleaned and reinstalled with nothing more than a pocket knife.

**DennisG01** · 09-22-2014, 08:51 AM

Mike, are you planning on having the entire injectors cleaned, too? I have a '00 250HP OX66 and am thinking that for $20 a pop, it might be a good thing. The engine runs good, but the previous owner said he had never had that done. I've seen some you-tube's on cleaning the injectors at home by squirting carb cleaner through them, but I just can't imagine it's anywhere near as good as sonic cleaning (or whatever the actual term is). I was going to send them to the Injector Man in Florida, but it looks like the link that Boscoe provided is similar. It seems like cheap insurance to me - even if they come back saying everything was good - at least I know. Plus, it seems like only doing the filters is only half the job, no?

**boscoe99** · 09-22-2014, 09:04 AM

Originally posted by DennisG01 View Post

Mike, are you planning on having the entire injectors cleaned, too? I have a '00 250HP OX66 and am thinking that for $20 a pop, it might be a good thing. The engine runs good, but the previous owner said he had never had that done. I've seen some you-tube's on cleaning the injectors at home by squirting carb cleaner through them, but I just can't imagine it's anywhere near as good as sonic cleaning (or whatever the actual term is). I was going to send them to the Injector Man in Florida, but it looks like the link that Boscoe provided is similar. It seems like cheap insurance to me - even if they come back saying everything was good - at least I know. Plus, it seems like only doing the filters is only half the job, no?

Yep, a new clean filter is a good thing.

Knowing that the injector is doing its job correctly is just as important, if not moreso, than having a clean filter. If the injector is clogged/not opening properly the end result could be similar to a clogged filter basket, that being insufficient fuel flow, a lean fuel/air mix, and possibly engine damage. Poor engine performance at best, damage at the worst.

On a 14 year old motor it would seem to be time.

There are short cuts that I will take to save a buck. Using a screw to remove a filter basket is one of them. Or, a pocket knife. Maybe someone has strong enough finger nails and does not even need a knife. More power to them.

Cleaning an injector by spraying some stuff through it, or spraying some snake oil stuff into a carburetor hoping to unclog its internals, are not the type of short cuts I will take.

**DennisG01** · 09-22-2014, 09:24 AM

Originally posted by boscoe99 View Post

Yep, a new clean filter is a good thing.

Knowing that the injector is doing its job correctly is just as important, if not moreso, than having a clean filter. If the injector is clogged/not opening properly the end result could be similar to a clogged filter basket, that being insufficient fuel flow, a lean fuel/air mix, and possibly engine damage. Poor engine performance at best, damage at the worst.

On a 14 year old motor it would seem to be time.

There are short cuts that I will take to save a buck. Using a screw to remove a filter basket is one of them. Or, a pocket knife. Maybe someone has strong enough finger nails and does not even need a knife. More power to them.

Cleaning an injector by spraying some stuff through it, or spraying some snake oil stuff into a carburetor hoping to unclog its internals, are not the type of short cuts I will take.

Thanks for the information. I agree - it's OK to take shortcuts, but the trick is to know when it's a 'good' shortcut, or one that will end up costing even more time and money in the end. Shortcutting something as vital as proper fuel flow - in my book, that isn't one of them.

I changed out my timing gear/chain set in my 350 Mercruiser - I used a GM set from Summit Racing as opposed to the Mercruiser one. But I know 100% that they are the same thing. Even though I work part time at a Sea Ray dealership and can get parts cheap (relatively speaking when it comes to boats!), I still saved quite a bit by getting the parts through Summit. Alternators, starters... no way - gotta use marine-rated for the spark-arrested thing. Sorry - getting off on tangent.

**bajakeith** · 10-01-2014, 12:49 AM

oxxy's

theres a filter (screen) behind the fuel regulator that everyone seems to miss..FYI....Keith

**rodbolt17** · 10-01-2014, 07:40 AM

the OX66 injectors are rather unique it the fact the filters can be removed simply by poping them out. yep if your fingernails are strong enough you can use them.
all the rest of the Yamaha injector filters require destruction for removal.

the 98-2000 7.4 mercruiser engine used the same filter. tells me they were made by delco and are most likely also avalible from GM.

Yamaha never offered the filter,mercruiser did for about 3 bucks each.

the regulator filter can be removed and cleaned as well.
sysmtoms of a clogged regulator filter are rich running and excessive fuel consumption due to elevated rail pressure.

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