Re: FACTORY compression spec 1988 Force 85HP
You did not ask for a general range. You asked for a FACTORY Spec
It's more polite to give people benefit of the doubt.
I did not expect a response listin a specific PSI, instead I wanted a specified ranged considered as "in interance" when it was brand new. This range varies slightly from each manufacturer. 125PSI would not be considered acceptable for a new one, but for a 1988 it is OK.
I'll do another compression check after I finish the decarb, and will report back.
I don't expect it to change much, might actually lose a PSI or two if gunk is increasing compression readings, but it will be super CLEAN once it's completed.
Most people do a decent decarb, but I am doing a more thorough one.
It's a three stage process to clean it out well, since it's brand new to me.
I'll start by tilting the engine up and filling up the cylinders with seafoam and then screwing the plugs half way in, BARELY bumping the starter w/wires off a couple of times force the seafoam past the rings, then it will sit over-night.
Tomorrow morning I will pull the plugs and turn it over to ensure the engine does not hydrolock. I'll replace the plugs, start it up and spray heavy amounts of seafoam deep creep into each carburetor @ high idle.
Then I'll run it in the water using 3/4 gallon of gas w/2.4 ounces of Amsoil synthetic
HPI @ 40:1, along with 1 full 16oz can of Seafoam and run it until it's empty.
Then I'll continue running Amsoil pre-mix @ 50:1 and call it good.
Will create another thread to post results, since this was just to find out what the original tolerance was.
