Search results

  1. S

    Weight of 1970 Mercury 650 4-Cylinder?

    Anyone know the exact or even close to weight of a 1970 Mercury Kiekhaefer 650, 4-cylinder outboard?
  2. S

    What to Expect for Fuel Economy on Mercury 650

    I'm close to being out on the water for my first trip with the Mercury 650 engine (1970, 4 cylinder). Engine is now running great. I'm trying to get a sense of what kind of distance I can cover one way on 1/3 tank of fuel at cruising speed (although I plan to bring a spare 2 gallon container)...
  3. S

    Fuel Discoloration

    Not particularly a Mercury question, but it's happening on my Mercury 650. Anyone out there ever experienced the kind of fuel discoloration in the first photo? The first one is fuel pumped out of the carburetor bowls. The second photo is fuel pumped straight from the tank. I've cleaned the...
  4. S

    Mercury 650 Won't Start

    Model year 1970 (serial 2804270) Before replacing fuel pump gaskets, carburetor gaskets, fuel lines and generally cleaning up the fuel system, I could at least get the engine to turn over and run for a short period. But after doing all these things, and replacing the timing belt, I cannot get...
  5. S

    Distributor Key Positioning on 1970 650

    Got the new timing belt on the engine, but I'm not sure whether the distributor key that locks in the timing belt pulley should seat all the down or stick up a bit as it shows in the photo. It doesn't seem to want to go seat flush with the top of the distributor.
  6. S

    Timing Belt Install on Mercury 650 (1970 model) - Advice on Installing & Distributor

    Timing Belt Install on Mercury 650 (1970 model) - Advice on Installing & Distributor After putting back together my 650 and trying to start the engine, I managed to blow the timing belt. I knew I wasn't getting any spark, but couldn't figure out why until I flashed a light and saw that the...
  7. S

    Mercury 650 Spring Tension for Choke Rod Positioning?

    Almost ready to finish putting back together my 1970 Mercury 650 Kiekhaefer, but I failed to take enough photos when I took it apart and can't quite suss out how the spring tension for the choke rod is supposed to go back on the top carburetor. Could use some help, a photo or description.
  8. S

    Advice on Bent In Trailer Tongue

    I recently acquired a 1985 SportCraft Challenger, Mercury 650 motor and trailer. I have not taken a hammer to test the entire tubing of the trailer, but visually the trailer is solid and generally free from rust minus some small spots of surface rust. Overall, it seems to be in pretty good...
  9. S

    Pull Start a 1970 Kiekhaefer 650?

    I'm trouble-shooting the fuel system on a 1970 Mercury 650. Battery and wiring are disconnected so I can get at the carburetors and fuel lines. I'm wondering if it's possible to pull start the engine without the battery and any wiring hooked up so that I can see if anything I'm working on the...
  10. S

    Question about Choke Solenoid

    Does anyone have an idea as to what this green goop is that leaked out of the choke solenoid and on to the top carburetor? A friend of mine theorized that it's rotted fuel, but I don't see any way for fuel to get inside the solenoid. Not sure what else it could be, however. It's bluish-green in...
  11. S

    Need Help Getting at Carburetors on Mercury 650 (1970 model)

    I've recently acquired a boat with Mercury 650 engine (1970 model, serial 2804270). I'm fairly handy, but new to more in depth repair and maintenance. No experience maintaining outboards. I've been able to start the engine, but she won't run but for more than 10-15 seconds, presumably running on...
  12. S

    Mercury 650 1970 Vintage Outboard Engine Repair/Tune-up

    I recently acquired a 1985 SportCraft trihull with a 1970 vintage Mercury 650 Kiekhaefer engine. I'm not new to boat handling, but I'm new to engine maintenance and repair. I took the cover off and discovered that some of the wires look like they're disintegrating from age and there's one line...
  13. S

    Manual Tilt for Older Model Mercury 650 3 Cylinder

    I recently acquired a 1985 Sport Craft Challenger with an older Mercury 650 with power tilt. See attached photos. Does anyone happen to know whether this engine is capable of being manually tilted up or down? For the life of me, I cannot figure out how to tilt the engine up, despite having...
Top