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I am attempting to check and adjust the timing (as needed) of my Mariner 150 with the help of a shop manual and the 1st item is to check and adjust the timing pointer. It describes getting #1 cylinder to TDC with the help of a dial indicator. Then rotating the flywheel ccw until the dial...

I have not checked for vacuum leaks. Thanks for the idea. I have to admit I not sure how to check with starting fluid and should I expect to singe eyebrows in the process ?? By the way - cool user name - Carl

I did a compression check and found all cylinders are within a few #'s of each other. Here are the averages 1= 112 2 = 112 3 =110 4 = 115 5 =115 6 = 110 I rebuilt the fuel pump yesterday which helps the overall performance, but it does not help at all in the low rpms. I did not yet pull the...

So, I did some diagnosis this afternoon. Here is what I did. I ran on a separate fuel tank with new fuel bypassing the racor - No change I pulled a wire off one at a time starting with 1-3-5. Pulling 1 and 3 made the idle slow and almost stall. Pulling 3 did nothing - no change. I did the...

The plugs are new this season. Wires have not been changed in the 5 years I have had the engine. I have not done anything to the carbs except use some carb cleaner on them at the end of last season. The carb cleaner did not seem to have any effect. I will keep trying Thanks Carl

I have my engine set to idle around 1K rpm. I had turned it up from 850 rpm since the engine would stall as soon as I shifted into gear. I still have a stalling issue, but not quite as bad. My problem is more shifting from fwd to reverse or reverse to fwd especially trying to get the boat...

Regulator is installed and wired.. I gave it a test drive today and it maxed out at 15V anywhere from 4K to WOT. All eletronics were happy and stayed on. Thanks for all your help Carl

Great idea - I will check out the mfg info Thanks Carl

Unfortunately, there are no directions in the box. I'm flying blind

I picked up a voltage regultor yesterday. My engine does not currently have a regulator so I can't do the typical method of remove and replace wire for wire. I know I connect the yellow wires to the 2 yellow wires going to the rectifier. My questions are: How and where to connect the 2 red...

I am resurrecting this thread again since I experienced similar problems again this year, but worse. He is my situation. Last year as noted earlier in this thread, I had high voltage and for the remainder of the season, I always turned on all the electric accessories (lights, radio, fish/depth...

I haven't been around here much, but I will be in Norfolk, VA for 2 weeks starting next week and I was wondering if anyone would want to take a yankee from Connecticut out fishing southern style. I can pick up the tab for gas, bait, beer etc. PM for email or cell # Thanks Carl

Where in CT are you located?

I was driving in on Saturday after a good day of black seabass fishing with my Dad. The ride in was about 30 minutes at 3500 rpm with no problems. After I was in sheltered water, I went WOT and after about a minute the engine shut down. No alarms - no bad noise - just rpms went to 0 and it...

I was using the ground on the starter.

I did some testing tonight and I think I found the problem, but I would like to validate it with your thoughts. I cleaned all the connections, but it did not make a difference. I measured battery voltage and then compared across the starter solenoid. With the ignition off, I had voltage on...

I was on the ramp this morning ready to splash and the motor would not start - just click - click - click - everytime I turned the key. It started fine last week in the driveway and gave me similar trouble last night, but I attributed it to a battery that probable needs replacing anyway, so I...

I haven't seen mine yet either Carl

Hey Stuarbc - It's interesting that you mentioned that the hole in the splash well was not in alignment with the steering tube. Mine is the same way and I never did completely remove the steering cable and I did not want to enlarge the hole in the splash well. I wonder if this is a common...

Sorry Blue, Here's what I did - I removed the nut that holds the steering cable to the tilt tube and sprayed WD-40 in the tilt tube. I then removed the large nut on the port side of the tilt tube. The 2 large nuts that hold the tilt tube, are self locking and do not move that easily. That I...