The plugs looked fine visually and gap was fine. I am running QL77CC plugs. So far so good with it. They were consistent in color, I could not really tell which ones were causing an issue. Maybe all...
Type: Posts; User: Stratos.250
The plugs looked fine visually and gap was fine. I am running QL77CC plugs. So far so good with it. They were consistent in color, I could not really tell which ones were causing an issue. Maybe all...
I haven’t Lake tested it yet but a new set of plugs seems to have cleared the issue. It was really bad on the hose at an idle. Since new plugs I haven’t seen it blimp out not one time. Hope to run it...
I’ve pulled and cleaned them multiple times. This engine is pretty clean in general. I’ve tried with and without dielectric grease.
It definitely has me stumped.
No I actually removed the key switch and was messing with it bending the harness etc trying to make it cut. Same thing with the harness back near the cannon plug. I can’t make the problem occur by...
That did not solve the issue. Another something I’ve noticed is that the Tach will randomly jump around a second and go back to working fine. The tach and the cutting out do not seem to coincide. Mr...
I will give that a shot and report back. Thanks !
2002 Mercury 250 Pro XB
OT430578
This motor has developed an issue where it cuts out as if the key switch was cut off and turned right back on. You get that initial start up audible tone every...
Forgive my ignorance but how do I correct this ? Im not quite sure I understand what to change or how to change it.
I am working on what I believe is a 1986 MERCURY 150 XR 2. Serial Number A167292. I can not locate a model number.
This motor runs perfect on the hose. It will crank and idle fine in the lake but...
That's good information. I think the Mercury dealer misled me.....
I have a 2002 Merc 250 Pro XB. I really love the...
I have a 2002 Merc 250 Pro XB. I really love the motor. I've had it for a few years now. A couple years back I locked it up as result of a no oil issue. There is a plastic gear that runs off the...
Pics sent
Don I have tried several times to upload them with no luck. If you want to shoot me a good email address in a private message I will send the pics to you.
Sure thing , I will take some pics over the weekend and post when able.
There was no power (key on - pushed in) to the blue wire at the solenoid. Back at the controls there were several wires stubbed out of the control box with factory rubber plugs stuck in them. The...
20 hp Merc 4 stroke electric choke ?
2010 Merc 20hp 4 stroke Ser# 1F2030ZHK OR389819
I recently purchased this motor used and installed it on my boat with forward controls. This is a small stick steer boat that I use in rivers where...
I had a similar issue like this with my 250 Pro XB. The fuel pressure regulator was dirty and causing excessively high fuel pressure. I would follow EuopeanAM's advise on checking pressures.
Sorry for the untimely response I haven't been online in a while. I unhooked every electrical connection under the cowling. Wiggled and reseated it all. Nothing looked corroded or loose at the time....
I had this exact problem with my 250XB a little over a year ago. Of course it was while I was on vacation hours from home at the lake house. I removed the cowling and reseated all electrical...
Got my service manual and TPS test harness today. I know exactly the screen you are referring to and it was definitely clean. No matter how many times I clean those throttle blades they seem to get...
Cleaned the entire thing in an ultra-sonic parts washer for about 30 minutes. Had it apart while it was being cleaned.
OK so finally , some resolution. Tested the fuel pressure today, and it was 61psi. Pulled the fuel pressure regulator and it looked fine. Took time to clean it and put it back on. Retested fuel...
I was taught that the Prop spins to the right and tries to carry the boat with it. Suddle bumps the the left offset the prop force. I have used this in several different boats and it always works for...
You are probly right. And I am ok doing that. Except I have a weeks vacation and lake house rented in two weeks. Annual family trip. I hate to not be ready for it.
Manual ordered. Please advise if I need any adapter harnesses or anything for setting the TPS. Also I was thinking of hooking the oil injection system back up. I have everything except the drive...
