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Stator? - 1979 Merc 175 HP

keviwe

New member

I have a 1979 Mercury Black Max 175 HP V-6. Serial 4733877. Engine starts fine and idles fine but at throttle up, RPM increases a bit but just hangs at maybe 2,000 RPM. I got it past the "dead spot" once and once "over the hump" it ran up to full RPM (I ran it for 20 minutes at higher RPM. it ran great), but after I throttled down it still won't get past the "dead spot" every time. I am told it's a stator-the low side. How should I test to make sure (if you think it could be something else) Please advise (someone said carbs since it sat for 3 years, but it sat for this long before without any issue (added fuel stabilizer each year and pumped the carbs full each fall). All I have is a cheap digital meter. I'll need a flywheel puller too, so let me know where to buy one of those.

Thanks,
Kevin in Colorado
 
It ran fine until it sat for 4 years, so do I need the gasket set only ($7/carb), and clean each carb thoroughly; OR the full repair kit ($90/carb) allot of $ x 3 carbs if this isn't the problem.
 
It ran fine until it sat for 4 years, so do I need the gasket set only ($7/carb), and clean each carb thoroughly; OR the full repair kit ($90/carb) allot of $ x 3 carbs if this isn't the problem.
I have a 1998 150 that had a similar problem. I found that by bumping the fuel enrichment in the dead spot made it disappear. That led me to rebuilding the carbs. It has gone away for the most part. If the engine sat for so long a carb clean and rebuild is almost mandatory.
 
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