Most likely need some more info
Any alarms? Same rpm every time?
Miss at idle or smooth at idle ?
Fuel filters new this year?
Battery age, condition?
some true experts here and they will...
Type: Posts; User: Salmonkiller01
Most likely need some more info
Any alarms? Same rpm every time?
Miss at idle or smooth at idle ?
Fuel filters new this year?
Battery age, condition?
some true experts here and they will...
The harness is fine, clamp on my flush hose into block was loose. New clamp and a good rinse with salt away all good.
Checked my plugs they have about 30 hours on them now and they are too clean....
The saga continues. My motor still shakes at idle and rpm fluctuates constantly. I did find that where my flush hose connects to the engine block is leaking and the engine harness that runs in that...
Thanks for the reply takes concern away. Just going to run it as it goes good just some rpm change at idle. Maybe an injector gummed up , who knows. Hits wide open throttle easily, lots of power. ...
523707Took the boat out for a good run idle to wide open throttle
Rpm fluctuates 50 rpm at idle now
wide open throttle 5850rpm
runs smooth and good
still has an idle vibration
Put new wires...
How is engine height? Any porpoising? Check your cavitation plate to ensure it is not buried in water
Talked to my dealer today and they want me to run the boat for an hour and see what it does
when I get home putting in the 2nd new set of plugs and all new wires( genuine mercury and reasonable)...
When key is turned on is it low pressure pump you hear or high pressure? Or both?
you tube showing cruise and idle
fluctuations
https://youtube.com/shorts/eSjO9c6lVL4?feature=share
fuel...
Update. Dealer found o2 sensor failed and ecm had an update to do with fuel calibration.
I will launch tonight and let everyone know as it sounds like I am not alone with this issue
Engine has...
The dealer is taking it in tomorrow. Hopefully have it fixed and will let everyone know what the issue was.
Replied
Fixed. Added aerial to original post
I ordered a new set of plug wires and another set of plugs, going to try that as plugs usually fix this issue from what I have read Maybe I got a bad plug and or damaged a plug wire
Thanks for the info, it definitely is not smooth at an idle, noticeable vibration. Even when I put in troll control is jumps around. It used to be steady.
If someone can tell me if their digital gauge fluctuates at idle that would be helpful
New guy here and my first post , thanks for allowing me aboard
2020 Mercury 200 rpm is fluctuating 20-100 rpm at idle , 40-50 at cruise speed
Wonder if someone else has had the same issues,...