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  1. RandyJ

    complete history of the 4.3 liter with casting numbers

    I would love some updated information on 4.3 vortec since 1998. I mixed and matched a 2000 tonawanda with a 2011 Romulous. The block, heads, crankshaft, piston rods all original tonawanda. I swapped a couple of valves from the Romulus to tonawanda. Intake, carburetor, and cam from Romulus. The...
  2. RandyJ

    2004 four stroke 40 hp Mercury 40elptefi doesn't turn over

    Not exactly sure what you mean but trying to turn the flywheel by hand feels completely normal. That's what I thought too after reading several posts but I don't have any reference to look it up. However, since it had been running fine and compression is almost perfectly even in all 3 cylinders...
  3. RandyJ

    2004 four stroke 40 hp Mercury 40elptefi doesn't turn over

    2004 40 hp Mercury 4 stroke. Starter won't crank engine. Acts like it has too much compression but only 100 psi evenly on all 3 cylinders. Battery 12.8 volts. All cable connections clean. New solenoid. Even jumping solenoid I get same results. I've adjusted valves to factory specs. Starter...
  4. RandyJ

    Evinrude BFL4TS trolling motor blows fuses on 12 volt system

    Working on a trolling motor for my buddy. His son in law hooked up batteries and blew a fuse. I have traced the wires and know that all the wiring on the boat is fine. If switch is in 24 volt position the motor works fine. If it is switched to the 12 volt position it blows a fuse and...
  5. RandyJ

    1989 90 hp mercury trim motor

    I'm tired of searching. Never had to deal with one like this. I don't see one in catalogs or online that is identical. Somebody help me out. Apparently this trim motor is toast. Which one do I need? Serial number OD190210, 3 cylinder.
  6. RandyJ

    2004 Mercury 40 hp EFI, 4 stroke vapor lock????

    I'm sure others have had this problem. I go for a long long ride about an hour or so away. Runs great all the way. After an hour or so I start to leave and it starts fine but dies when I put it in gear or may run a short distance then act like it's running out of gas. I don't see any air in...
  7. RandyJ

    2003 Mercury 40 hp EFI 3 cylinder. Voltage Regulator melt down

    I can't tell what really happened but I just caught it right on time. I pulled the cowl off to check oil with the intent to change oil and filter. I heard a fizzle... looked at wiring harness to voltage regulator. The yellow wires got hot and melted the outer black cover. It looks like the...
  8. RandyJ

    1972 Mercury 402 not getting fuel into carburetor

    Hoping I'm just overlooking something simple and stupid. Fuel is getting into bowl but none in carb. When I spray starting fluid into carb it starts right up. This old motor was running as good as new. I let it set on my pontoon out in the lake for a couple of months and when I tried to...
  9. RandyJ

    My first 4 stroke... 2006 40 hp Mercury. No controls/wiring whip

    I found a great deal on a 2006 40 hp mercury 4 stroke. It does not have controls ... just the motor with battery cables. Can anybody tell me what type of controls and wiring from motor to controls I will need? I've done a little research but not enough info to make any kind of decision. If I...
  10. RandyJ

    2003 waverunner 1200 SUV won't start without starting fluid.

    Obviously it's something to do with fuel not being pumped. When it has been sitting a day or two I have to use starting fluid to get it to start. Normally it will go all day, maybe 2 or 3 days sitting before I have to use starting fluid. The problem is getting worse. When cold I can get it...
  11. RandyJ

    1972 Johnson 25R won't start

    I was given this motor a few years ago. After replacing coils and condensers it ran like a new one. Couple of years ago it started misbehaving then one day kinda sputtered across the lake as if running on only one cylinder. When we got it home and tried new gas it wouldn't hit a lick. It...
  12. RandyJ

    2005 Mercury 115 EFI 4 cycle. no fire.

    Lanyard hooked up, cranks over just fine, has pulsing voltage to coils. No fire. When I use an ohm meter to check for resistance or continuity from sparkplug wire to ground or any terminal on the coil wire I get nothing. I do get continuity between terminals where wiring harness connects to...
  13. RandyJ

    2007 Mercruiser 5.0 MPI. Safe Mode????

    Neighbor pulled his boat out and put the cover over it. Failed to pull plug. The cover blew off and filled it with water up to intake manifold. I changed his oil (oil pan full of water), pulled sparkplugs and checked for water in cylinders (none). I cleaned the whole trim unit, motor, and...
  14. RandyJ

    115 Mercury EFI. SN 1B252422 Ran yesterday. Won't start today.

    Went and picked up this pontoon yesterday. Started right up but ran rough. Coughed and stumbled up to 3500 rpm then would die down if I gave it more throttle. It had near a full tank (21 gallons) of gas that had been sitting there over winter if not longer. I put a full can of Seafoam in it...
  15. RandyJ

    Alpha one outdrive not going down, 2006 Sea Ray 175

    Hope you guys have a little advice before I start with this one. Last year I replaced the trim senders, drive shaft bellows, exhaust bellows, and shift cable bellows. The leaking shift cable bellows had allowed water in the aft of the hull which also allowed water in the trim motor and...
  16. RandyJ

    1972 Mercury 402 firing good on one cylinder, intermittent on #2.

    2 cylinder 40 hp, 1972 Serial Number 3406967 I brought this motor out of some 10 years of storage a couple of months ago. At first it ran super good after replacing the rectifier. I bought and installed a new wiring harness 84-822253T20 from motor to control box and all was well except that I...
  17. RandyJ

    Thermostat on 454 engine.... 18-1989k. My first experience...

    Found the answer! THANKS UNCLE WILLIE!
  18. RandyJ

    Thermostat on 454 engine.... 18-1989k. My first experience...

    This is the first time I've seen this arrangement on a thermostat & housing. The repair kit, 18-1989 came with two sleeves and 3 gaskets. Of course, looks like only one of the sleeves and one of the gaskets will be used. My question is... does the thermostat go on top of the sleeve, up in the...
  19. RandyJ

    1993 Yamaha 115 TLRR. Carburetor swap problem or fuel problem?

    Friend brought me this boat with a 1993 Yamaha 115 TLRR on it. Had not been run in YEARS. Carbs were completely gunked up with varnish. One looked like coffee grounds in the bowl and the other looked like it had been painted with varnish inside. Thorough cleaning did little to help, would not...
  20. RandyJ

    Bravo One question... bent skeg?

    Guy brought me his boat to get it running for him. The outdrive has been dragged through dirt so not sure about this. I noticed there is no fin on the trim tab and the skeg is bent to the left (Port side) as if it might be there either for a purpose or happened when the lower unit was down and...
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