1989 Evinrude 200 XP Mods

[phrogman26]

I need to know if there is a way to direct all of the exhaust thru my above water exhaust system without hurting my motor. right now i am running a worked 28 pitch big ear chopper over the hub. It is blowing out and slipping way to much out of the hole.

[bigbore]

they make a bolt on exhaust snout.

[Lockjaw]

Why not have the prop worked? You can also drill exhaust relief holes in the lower unit, which will help. I don't think you can block it off totally from coming out the lower. You can reduce it, which might help.

[Action Dave]

Agreed. Drill some relief holes in the gearcase housing. Do not drill or add holes to the mid. It's almost impossible to run an over-hub without relieving some of those exhaust gasses. Also, if you relieve through the case, the motor will idle quietly as the exhaust will be muffled under water.

[David]

Try a whale tail of some form. I put a Bob's True Tracker on my Merc and solved my problem with over hub props. No more 5000 rpm and wait to plane. I used a chopper for water skiing all last year.

[phrogman26]

thanks guys, i already have a bob's above water exhaust and one of his whale tails. in case you guys are wondering i installed a plate inside the midsection just below the above water exhaust and drilled two 1/4 inch hole in it to relieve the water that builds up, it runs great now. it has just the right amount of slippage.