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It may not be what you want to hear but I'd run a compression test. It's a bit of an annoyance on a van but it seems like the next likely step.
"Irregular polygon" seems just fine for me."Irregular polygon" seems just fine for me."Irregular polygon" seems just fine for me."Irregular polygon" seems just fine for me.
Seems Fine was created on 2004-09-20.
If the boat idles fine and revs fine in neutral in the water and idles fine on the trailer, however has no power when you stick it into drive and give it some throttle a common problem with some of these early Mercury V6's is in the stator. The only way to fix this is to replace the stator.
Probably a bad idle air control valve.
Mine did this and I found out it was the timing belt that needed to be changed.
id change the coolant temp sensor
sounds like the lean burn system bolted on side of carborator bonnet
Sounds like the throttle cable is broken.
Check the air filter, it's probably clogged.
Could be clogged converter in the exhaust system..
it is the carb. my uncles did the same thing. you need to have them cleaned and have them put in sync