96 mariner 225 carb idling at 2-3k rpm

**SprayinThemUp** · 10-13-2019, 05:21 PM

At first I thought I had a fuel problem cuz I had to be squeezing the bulb to keep the motor running so I replaced the fuel pump and a few lines that were dry rotted n right after that after numerous times trying to start the motor n finally started it, it went straight to 3k rpm at idle.. I took apart the carb n found a line wit a bolt in it in the Reed cage. Dont kno how that got in there maybe previous owner. Put everything back together and same thing idle at 3k.. bought a carb rebuilt kit slap it on n same thing idk wat else to look for n need some help thanks

**Merc 2.5** · 10-13-2019, 05:30 PM

Need back down idle timin. Can u take a pic port side mota?

**22R** · 10-13-2019, 07:01 PM

look for air leak too

22R

**TEXAS20225** · 10-14-2019, 01:06 PM

this is 3.0 right

**SprayinThemUp** · 10-15-2019, 12:38 AM

Yes it's a 3.0 I'll get some pics some time this week cuz boat is at the keys. crazy part is that the boat waz running perfect n now I just cant figure it out smh

**CT River Baja** · 10-15-2019, 08:30 AM

Did you test/replace high pressure pump and pulse pump?
Can you put a fuel pressure gauge on to verify?
There is a small screen inside fuel center on those I think, maybe its clogged?
Does primer ball go flat?
Check all vacuum lines also.
If that all checks out time to start on electrical side I guess...tps, map, cam sensor etc ..
But sounds like a fuel issue to me.

**Merc 2.5** · 10-15-2019, 04:44 PM

Originally Posted by CT River Baja

Did you test/replace high pressure pump and pulse pump?
Can you put a fuel pressure gauge on to verify?
There is a small screen inside fuel center on those I think, maybe its clogged?
Does primer ball go flat?
Check all vacuum lines also.
If that all checks out time to start on electrical side I guess...tps, map, cam sensor etc ..
But sounds like a fuel issue to me.

It's a 3.0 carb. Wont have half this stuff