Engine fire

[THEFERMANATOR]

Definately 225 carbs. Also make sure that you get the right ones and swap ALL of the jets INCLUDING the brass pick-up tubes inside of the bowls. OMC made ALOT of changes to the pick-up tubes from year to year, and even sometimes had 3 different variations in the same year. I would also pull the intake off and replace the reeds. If it backfired hard enough to pop out the carbs, then the reeds will have micro cracks in them from it. And when a metal reed breaks, it will go through the engine and either knock a hole in the block in the rod slot(best case scenario), OR it will destroy a piston and sleeve and could even push the sleeve through the head.

[Destroyer]

Originally Posted by THEFERMANATOR

Definately 225 carbs. Also make sure that you get the right ones and swap ALL of the jets INCLUDING the brass pick-up tubes inside of the bowls. OMC made ALOT of changes to the pick-up tubes from year to year, and even sometimes had 3 different variations in the same year. I would also pull the intake off and replace the reeds. If it backfired hard enough to pop out the carbs, then the reeds will have micro cracks in them from it. And when a metal reed breaks, it will go through the engine and either knock a hole in the block in the rod slot(best case scenario), OR it will destroy a piston and sleeve and could even push the sleeve through the head.

Fermanator, I already have the reed blocks off and cleaned. To my machinist practiced eye they look ok. There's about a .005 - .010 gap between the petals and the base on all of them, and that's what the book says is ok, but I've have already made the decision to replace them. I don't want to take this engine apart a second time, so am going to take my time and make sure the front end is all ok before I put the engine back in service. Good call about the 2 brass pick up tubes inside of the bowls.. I didn't know that OMC made different sizes...(although it doesn't surprise me). I'll make sure they are the same and if not I'll change them out. Do they pull out or are they screwed in? I've already cleaned all the servicable carbs and carefully pulled and ID'ed the idle, intermediate and high speed jets from the other two carbs so I can put them into the new bodies when they arrive. All passages have been cleaned and blown out with compressed air in all the bodies and the butterfly plates behind them. Anything else I should be looking out for? Thanks for all the help guys... most appreciated!!!

[nymack66]

Check both the throttle bodies and the replacement carbs if any warped with all that heat from the fire ?
Also I think you have six petals reeds ? If yes I have OEM spares ..let me know ...

[spareparts]

I allways said that OMC should have drug tested their engeneers for some of the ideas they came up with.

As far as teh carb bases being warped, I've had good luck sanding them flat on a hard surface with adhesive backed sand paper , you have to let part of the body hang over teh edge

[THEFERMANATOR]

I would HIGHLY reccomend that you DON'T run the stock metal reeds again. They are an accident waiting to happen IMHO. I run TONY DOUKAS RACING REEDS in my engine, and will run them in all of my 2 smokes from now on. They don't warp and leak like BOYESENS do, and have all of there advantages. The pick-up tubes just press in. I carefully use a pair of medium sized pliers and wiggle them and slide em out, then just press em into the new ones. Just make sure that you press em in all the way(carefully).

http://www.bansheedepot.com/categories.asp?cat=29

[Destroyer]

Originally Posted by THEFERMANATOR

I would HIGHLY reccomend that you DON'T run the stock metal reeds again. They are an accident waiting to happen IMHO. I run TONY DOUKAS RACING REEDS in my engine, and will run them in all of my 2 smokes from now on. They don't warp and leak like BOYESENS do, and have all of there advantages. The pick-up tubes just press in. I carefully use a pair of medium sized pliers and wiggle them and slide em out, then just press em into the new ones. Just make sure that you press em in all the way(carefully).

http://www.bansheedepot.com/categories.asp?cat=29

Doesn't look like they make OMC reeds... just Yamaha and Banshee.. or maybe I'm looking in the wrong place.. Thanks on the pick up tube proceedure.. :)

[THEFERMANATOR]

Originally Posted by Destroyer

Doesn't look like they make OMC reeds... just Yamaha and Banshee.. or maybe I'm looking in the wrong place.. Thanks on the pick up tube proceedure.. :)

Call him, he's got em. I know because I have a set in my 225HP EVINRUDE.

[Destroyer]

Originally Posted by spareparts

I allways said that OMC should have drug tested their engeneers for some of the ideas they came up with.

As far as teh carb bases being warped, I've had good luck sanding them flat on a hard surface with adhesive backed sand paper , you have to let part of the body hang over teh edge

I'll put them on a surface plate tomorrow.. They don't look warped, but you never know... And yes, it's criminal to make carbs out of plastic... talk about an accident waiting to happen...