Why are the spark plugs on my mercury not working?
I have a Mercury 25 hp serial no oa955924….ran good last fall now spark plugs will not fire. Has been stored in an enclosed shed. … read more Vocational, Technical or Tra… 1991 25 HP mercury carburetor float stuck. It will not allow 1991 25 HP mercury carburetor float stuck. It will not allow fuel to pass through carb to cylinders.
Why is my Mercury outboard engine not firing?
It is starting and running, but the engine does not sound like all the cylinders are firing. It sounds like it tops at 4000 rpm instead of 5500 rpm.<br /><br />Only going 30, the cooling system is working ok, and it idles fine, just when trying to cruise it is not getting the speed it should. It is also slow off the line.
How to troubleshoot a Mercury outboard ignition switch?
Disconnect the Mercury Outboard switch and reset, if the engine fires, replace the Mercury Outboard switch. Check the voltage on the red and white Ignition wires at the CD Unit. If the voltage is less than 9 1/2 volts during cranking there is a problem in the battery s or the Ignition switch Box.
How to fix Mercury outboard no spark step by step?
– YouTube How To: Mercury Outboard No Spark Step-By-Step how to fix with minimal tools. If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations. To avoid this, cancel and sign in to YouTube on your computer.
Why does my mercury 200 HP EFI not start?
My Mercury 2001 200 hp Efi won’t fire. It turns over but wont fire not even with starter fluid spray. Ive replaced the fuse on the right side of the engine but that didn’t work. It acts as if the kill switch is pulled but it isn’t.
Is there a spark on my Mercury outboard?
25 HP Mercury no spark. I have what I beileve is a 87-88 25 hp Mercury outboard that had been sitting for the past few years, ran when I parked it, no spark last night when I tried to start it. I don’t see any chewed wires and checked to make sure the “kill switch” was in the run position but that’s as far as I got.
Why are the spark plugs on my outboard motor fouling up?
One of the most common issues with two cycle outboard motors occurs when the spark plugs become saturated with gasoline, and foul out. When it seems like no amount of replacement plugs can fix the issue, it might be due to a number of factors.
It is starting and running, but the engine does not sound like all the cylinders are firing. It sounds like it tops at 4000 rpm instead of 5500 rpm. Only going 30, the cooling system is working ok, and it idles fine, just when trying to cruise it is not getting the speed it should. It is also slow off the line.