need help on motor question. Ihave a 35 vanguard w/mikuni carb, bps exhaust. Just recently had the lower unit rebuilt had a bad bearing that i thought was making the motor bog down at about 3500 rpm. took boat out yesterday and motor will get up to 3980 rpm's but when i give it more throttle motor bogs down, go back to previoud throttle motor runs fine at 3980 rpm's. Motor in neutral and i can bump rev limiter easy 4350 rpm's, put in gear and cannot get above the 3980 rpm mark. Any suggestions on what to check would be appreciated. Thanks to all

Sounds like the main jet is off a bit . what main jet do you have ?

I am not sure witch jet is in the carb. When i installed the carb early last year motor ran like a champ, rpm's pushed 4200 to bumping rev limiter when by my self. If it was the main jet do you think it would have done that from the start? I know the carb came with two jets I need to look to see which one I have left. thanks

If it worked well before I would not suspect jet size. You sure you are getting fuel at the higher RPM- have you pulled the fuel bowl to see if there is anything floating in there?

The problems started happening along with your lower unit issues or is this coincident?

Pull the main JET, mine did the same thing and i had a little piece of trash in my jet.

now that I think about it, a few times last season it backfired on me trying to get out of the hole in a little muck. acted like it didnt have enough power???? thanks to all