87 formula pc25 with single 260hp. Last year I had a 3 blade alum 15.25x15 prop. Boat was a dog coming out of the hole but ran 36mph at 4900rpms. This year(I messed up and couldn't remember my prop numbers) i ordered a 15x16 4 blade alum prop. The boat comes out really fast and I love it BUT my...
I have a 84 formula 25pc. It has a 5.7 and alpha one outdrive. This past weekend the out drive would not come up. It would go all the way down no problem. I pulled the lines off at the pump and if I hit the down button it will spray a steady stream out. When I hit the up button the motor just...
I have a 84 mercruiser 3.8v6. Just replaced the impeller but I'm not getting any water out of the outdrive. I started pulling hoses and I've found that I'm getting great water to the thermostat housing but it does not flow any water at all to the water pump(on the engine). I pulled the whole t...
I have the merc 3.7 v6 (85) and I need a freeze plug. Does anyone if any other years or engine size fits this block? It's hard to get to it and measure it.
New to boats. I have a 84 merc 3.8. It seems like its definitely out of time. It will roll over and barely start. It acts like its retarded too much but then when i advance it, it will grunt and barely turn over when i do get it to fire it pops out of the exhuast and intake. I keep reading...
Is there anything I can do to my 88 johnson 110 to get more power? Like change out exhaust or carb work. I dont want to have to bore and machine the head though. I know I could buy a bigger engine but that is a little out of my budget. Just wondering... Thanks.
I have a 88 johnson 110 vro. Took it out and ran fine all weekend last weekend. I changed plugs weds and started it, ran fine no trouble. Took it to the water today wont start. It would just crank and crank. When I got home i noticed the lanyard was off so i put it back on and it tried to start...
I'm looking for a wiring diagram for the dash insturments. They have no power at all and i really need my bilge pump.lol. I have a whole bunch of wires around the battery area that run to the dash but I dont know what needs to be hooked up to +? Thanks for the help.
I have a 88 johnson 110 vro. How are the cylinders numbered? (I.e. is top port cyl 1 and bottom port cyl 2?) Trying to hook up new coil and wires and dont know what the numbers are for the cylinders. Thanks.
Are there any free manuals for a 88 invader with a johnson 110vro anywhere? I have no power to my dash and need to figure out the wiring to get all the instruments working. Thanks.
What coils go to what cylinders? Looking at the back of the boat top left side is going to bottom left side cylinder. Is that correct? On the right hand side top goes to top and bottom goes to bottom. It's weird becuase a plug wire is broke and it's running great on 3 cylinders. Also(I'm not to...
I have a 84 chapparal with a merc i/o 120. I put it in forward no problem goes and drives. Put it in reverse and it sounds like stuff is shattered to pieces or just barely catching a spline or something but it wont move.... Is the transmission bad or is something not adjusted in the trans? The...
i upgraded my merc 120 distr system to the mallory electronic system.I'm getting spark but when i crank the engine it will fire for a small second( it will go bum bum bum and then quit) as soon as i hit the switch again it will do this over and over. I've tried to reset the distr and timing but...
