Question about Boating
Need to see a wiring diagram for an 85 hp Mercury 50 hp.
Posted by Anonymous on
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Posted on Jan 02, 2017
this is just one of many carbs on a 50 hp merc
if this isnt it just go to boats.net and check your modle number
Posted on Jul 06, 2009
If you are saying the Flywheel is locked or Frozen then I imagine the starter Bendix was found extended and jammed against the Flywheel.
If the motor ran when it was shut off last, then your rings and/or bearings rusted in place. You don't want to grab the prop to turn it because it will strip the Rubber hub.
I would take out all the spark plugs, tilt the engine up as close to level as you can get it and spray WD40 into the cylinders. If you did not have water connected to the engine the pump may have crumbled but if the engine did not turn at all the pump may still be good.
Give the WD some time to penetrate and crank the engine to see if it broke loose. If it did not, you may as well drop the lower unit and eliminate jammed gears with a second try at cranking the engine.
If still no luck, you might try to rig an Air fitting to the Sparkplug holes and hit each with about 80PSI and another squirt of WD. This will force the WD deeper and force the pistons down with no damage.
Still no luck, then its disassemble time. Good luck on this.
Posted on May 27, 2010
Its not too bad to adjust, just takes patience and an assistant would be nice. You want to center the linkage in neutral so the throttle does not move immediately when you shift.
This can be adjusted with the motor off. You need to try it first by putting the Handshift in neutral and spinning the prop by hand. The prop should spin without locking into gear or making a "ticking noise" with the gears partially meshing. If there is a "ticking noise" you need to disconnect the shift cable; adjust it until the noise is gone. Then reattach it.
Now have your assistant move the Hand Throttle slightly forward, the gears should make a "ticking sound" before the throttle cable moves, and the gears should lock into forward before the throttle cable moves. If the Throttle cable moves too soon, you want to disconnect the Throttle cable and turn the knurled fitting to return the Throttle cable to a closed position. Easy does it with these adjustments.
If you go too far while adjusting the Forward gear it can show up on Reverse. But remember, you do not need much Throttle in the Reverse gear. Reverse is only for manuvering at slow speeds. You want low RPM for Trolling in Forward so you want a little slack in the Throttle in Forward gear.
Posted on Jul 18, 2010
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