merc help
 

i have lost 2 cylinders on my 89 seacraft 200 merc carb motor,both on the left bank,replaced batteries,filters,changed plugs,compression reads 115 to 120 on all cylinders even switched the powerpacks around without a differance.pulled the plug wires one at the time all had good blue arc. Winter fishing it would not get up on plane till after about 5 minutes then it would start hitting and run fine the rest of the day.could bad reed valves cause the problem? Thanks Les

Re: merc help
 

Try moving the coils around. Sounds like an open circuit, where the gap closes as the motor heats up. See if the problem moves with the coils.

Re: merc help
 

switching the coils around didnt help,so i run a can of merc carbon cleaner thru the motor and run it hard for 15 minutes. i will know tomorrow when i try it.Im wondering if hotter plugs would help. :D

Re: merc help
 

stator is toast (Highspeed coil is shot). Test it with the multimeter . . . you can find instructions online or in your manual.

Re: merc help
 

Hotter plugs can lead to preignition/detonation. Please don`t do that. The heat range of different plug brands also don`t correspond correctly. I only run Champions in my Rude because of this. Factories know best!
GFS

Re: merc help
 

Listen to Big. I replaced a stator on one of my Mercs last year.

Re: merc help
 

Is your motor a 88 or 89 200. Does it have the 40amp stator with the water cooled voltage regulator? 89 will have this style . . . 88 has the old 16amp stator and tiny voltage reg. If you need an 89 40amp stator . . . I have 3 of them. Will sell for cheap ;) PM me after you test yours.

Re: merc help
 

Tim..will your stator work on a 1993 (I think) merc. If so I am interested.
email me fdheld@bellsouth.net
PM also sent
-Fred

Re: merc help
 

I agree. Listen to Tim (BigShrimpin).

Re: merc help
 

not a stator problem or the dead cylinders would be on oposite banks.I think it was a carbon problem,run some carbon cleaner thru it 2 days ago,fired it up last nite run like new.Guess ill have to wait for that 300 zuke a little longer.Thanks for everybodys help. :D Les