Re: Proper Start after long sit Johnson 150 1987
DjPro <br /><br />I would follow the advice above, but lets see if it will run first. Put a little TC-W3 oil in the cylinders, have a fully charged battery hooked up, fresh fuel/oil mixture, new fuel line and primer bulb. Pump up the bulb until firm, hit the choke and crank it over and see if it fires. True, you will want to clean the carbs out after sitting so long(Don't want it running lean on any cylinder), but you may at least get it to run enough to do the decarb, after which will give you more realistic compression readings. Then take care of all the other things(Water Pump, Lower unit fluid change, clean carbs, Ect.) once you know you have a solid motor by verifing the compression readings..