Boat Maintenance: slow motor

Nolin River Lake Topics

(Nolin River Lake Specific)

2 messages

Updated 6/24/2009 2:03:36 PM

Off-Topic

Lakes Online Forum

83,605 messages

Updated 4/25/2024 9:33:24 PM

Boat Maintenance

Lakes Online Forum

5,193 messages

Updated 4/3/2024 3:47:36 AM

Nolin River Lake Fishing

(Nolin River Lake Specific)

1 messages

Updated 2/18/2007 6:33:51 PM

Jokes

Lakes Online Forum

4,169 messages

Updated 4/15/2024 11:05:05 PM

Sports

Lakes Online Forum

4,260 messages

Updated 3/24/2024 9:24:45 AM

Grilling & Recipes

Lakes Online Forum

2,976 messages

Updated 3/20/2024 11:53:43 PM

Tallapoosa River Topics

Lakes Online Forum

98 messages

Updated 4/15/2024 1:00:58 AM

Forum Usage Rules

Welcome, Guest

Select View Mode: [ classic | beta | recent ]

	Name:	Kizma Anuice -
	Subject:	slow motor
	Date:	7/15/2008 10:54:35 AM

in order to determine how fast your boat should go you need to know the pitch and diameter of the prop. but that calc is just theoretical and slip on a pontoon boat is probably serious. it probably should run between 25 and 30 mph

the tach is easy to hook up if you have a wireing diagram for you controls. there are usually several wires that come to the controls through the harness that are not connected to anything. one of those is the feed for the tach. that and a ground is all you need. there is usually a light wire on the tach also so you may need to determine which is which.

Is the 115 the motor that was originally installed on the boat?

if not then that might explain why the tach is not hooked up. all tachs will not work with all motors, and some you have to flip dip switches to set for the right number of cylinders.

if you have a two stoke engine and carburator problems you are asking for trouble by continuing to run it.

how do you know all plugs are firing? if they are try this if you can.

take the cover off the motor, run the boat a wot. using a pair of very insulated pliers, remove one plug wire from the plug. if the speed changes put the wire back on. if it doesn't change that cylinder is producing no power.

do the same with each cylinder. if the motor slows down each time you remove a wire, then all cylinders are producing.

you have to watch when you are doing this because you can shock the pisss out of yourself or fall off the boat.

you could have something like an obstructed fule line or dirty filter or pick-up.

I once had an outboard that would run fine and then slow down. after hours of looking for the problem, i found that someone had put the wrong kind of fule line in the motor. after it got warm, the suction through it would cause it to colapse.

when that happened it was fule starved and slowed down, i replaced the 2 inches of hose and that solved the problem.

Other messages in this thread:

View Entire Thread

slow motor - old blue chair - 7/10/2008 2:36:34 PM

slow motor - Samdog - 7/10/2008 3:44:04 PM

slow motor - old blue chair - 7/10/2008 3:55:13 PM

slow motor - Kizma Anuice - 7/11/2008 6:47:25 PM

slow motor - old blue chair - 7/14/2008 1:21:47 PM

slow motor - Kizma Anuice - 7/15/2008 10:54:35 AM

slow motor - old blue chair - 7/15/2008 1:33:02 PM

slow motor - Kizma Anuice - 7/15/2008 2:43:46 PM

slow motor - old blue chair - 7/16/2008 9:29:09 AM

slow motor - vatech - 7/15/2008 5:49:51 PM

slow motor - old blue chair - 7/16/2008 9:26:50 AM

slow motor - vatech - 7/14/2008 9:47:02 AM

Quick Links
Nolin River Lake News
Nolin River Lake Photos
Nolin River Lake Videos