How fast does a 70 hp engine go?
It depends on the weight and style of the boat, but any boat in that range should be able to get up on plane(20ish mph+) A 70 on a 15′ fiberglass boat would probably reach 40mph, maybe 45 tops, on a 19 foot boat I doubt you’d be able to go much above 25.
How do you adjust the timing on a Mercury outboard?
Adjust the Ignition Timing Detach the throttle cable from the power head and attach a timing light to the top spark club lead. Adjust the ignition timing. Shift into neutral and start the engine while holding the throttle arm. Adjust the idle timing screw so that it is 2 degrees before top dead center.
What should the idle speed be on a 70 hp Evinrude?
The tuneup specs say the 60 hp should have an idle speed (in gear) of 750-850 rpm, and the 70 HP 3 cylinder 1990-1997 models idle at 600-700 rpm and the 1998 to 2001 models idle at 750-850 rpm. All I have is my dash mounted tach, so I’m going to attempt to adjust the idle 1/8 turn at a time until just enough to prevent stalling.
What kind of engine is a 1977 Evinrude Outboard?
1977 Evinrude 70 HP 70773 This 70 horsepower Evinrude outboard, manufactured in 1977, is a saltwater model. The engine weight is recorded at 222 lbs. This is a 3 cylinder model. The displacement for the pistons is 49.7. The bore for this outboard is 3.0 inches and the stroke is 2.34 inches.
What should the timing be on an Evinrude Outboard?
For 60-horsepower to 70-horsepower motors, set the timing between 1 and 4 degrees ATDC at a motor speed of between 750 rpm and 850 rpm; at 4,500 rpm to 6,000 rpm, set the timing at between 18 and 20 degrees, BTDC.
What kind of engine does an Evinrude 70773 have?
70773 This 70 horsepower Evinrude outboard, manufactured in 1977, is a saltwater model. The engine weight is recorded at 222 lbs. This is a 3 cylinder model. The displacement for the pistons is 49.7. The bore for this outboard is 3.0 inches and the stroke is 2.34 inches. This engine has power steering and a electric-type starter.
1977 Evinrude 70 HP 70773 This 70 horsepower Evinrude outboard, manufactured in 1977, is a saltwater model. The engine weight is recorded at 222 lbs. This is a 3 cylinder model. The displacement for the pistons is 49.7. The bore for this outboard is 3.0 inches and the stroke is 2.34 inches.
For 60-horsepower to 70-horsepower motors, set the timing between 1 and 4 degrees ATDC at a motor speed of between 750 rpm and 850 rpm; at 4,500 rpm to 6,000 rpm, set the timing at between 18 and 20 degrees, BTDC.
70773 This 70 horsepower Evinrude outboard, manufactured in 1977, is a saltwater model. The engine weight is recorded at 222 lbs. This is a 3 cylinder model. The displacement for the pistons is 49.7. The bore for this outboard is 3.0 inches and the stroke is 2.34 inches. This engine has power steering and a electric-type starter.
What is the repair manual for a Johnson Evinrude?
1990-2001 johnson evinrude outboard 1.25-70 HP Engines repair service manual (Complete FSM Contains Everything You Will Need To Repair Maintain Your Outboard Motor!) Download Now