Re: Complete Decarb Steps
ScottGW, you are correct about the vro, your forgiven this time for high jacking the thread.
MNS. '76 70 hp johnny. pull each plug, hold the plug near the motor with channel lock, pliers, with rubber coated handles (or you could get a good jolt) have someone turn the key and watch the spark go from the plug to the engine. it should be blueish, and just from the plug 3/8", this is not the proper way but work in a pinch. note findings. beg, borrow, rent, or buy a compression guage, all plugs removed, insert gauge, puch throttle to wide open, turn engine over 4 times. not reading and go to the next cylinder. post the findings. now we know the general health of the innards, and the spark. complete cleaning the carbs, and reassembly with rebuild kits with new floats, as the tend to get gas logged and not float properly. the impeller is a must, it wiil come apart at the most inopertune time,( 6people on the boat, raining, rough , lightning, and getting dark , and no motor) let's get it running properly, then we'll talk about preventive maintainance. post your findings
take that manual and act like you are going to be tested, the guy with the highest score gets $10.000, the cost to replace you engine.
