Help 1985 mercury XR2

fl-frogger

Recruit
Joined
Feb 13, 2011
Messages
1
I have a 150 Xr2 that starts and runs great except at times it has a miss at 1100 to1200 rpm's. Sometimes it will miss when 1st starting and idling out by marina. Other times it will miss anytime I'm in this rpm range. Also when loading on trailer if I have to power up on trailer to roller it will do it also. Sometimes it will run with no miss. It's driving me crazy. Any suggestions? I have changed spark plugs but didn't help. Also changed stator unit and a month later changed 1 power pak. I don't remember the motor missing prior to changing the stator and power pak.:(
 

SparkieBoat

Captain
Joined
Aug 17, 2009
Messages
3,643
Re: Help 1985 mercury XR2

you need to check you timing and linkage settings..also maybe some carb issues..it would not hurt to put the old power pack back on for a test run..
 

Sunfish12

Petty Officer 1st Class
Joined
Feb 6, 2011
Messages
260
Re: Help 1985 mercury XR2

Check the bias circuit between the power packs.
 
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