Hey guys my motor is idling ruff. It runs good the rest of the time. The first time I crank it, it idles fine. After that it just chugs. It hasn't gone dead yet but a couple of times it chugged and I put it in gear and it would die. But it would crank right back up. Don't know where to start. Any ideas?
TPS adjustment thats what cures mine.When is the last time you changed the low pressure fuel pumps?
just bought the boat in Jan. Probably hasn't been changed.
When its idleing do you smell gas or see any onthe water?
mine idles rough and you get alot of smoke and gas fumes as well. i have the same motor. wondering what it could be???
Charles Dukerich
Tracker 175TF
60HP Mercury
try burning amsoil hp injector oil, and run ngk br8 hs-10 plugs...
Marks Props 317-398-9294, 1850 East 225 South, Shelbyville, Indiana 46176 propellerman59@gmail.com http://www.marksprops.com/index.html
^^^What he said.....Might as well check lift pumps for leaks....clean the oxygen sensor, VST and gas filter screens......then decarb to rascal and go fishing..
I agree with Tom Z. These motors are excellent, but they need to be in tune for them to run well. The low pressure fuel pumps are common service items. One sneeze from the engine and they rupture. Best way to prevent sneeze is to make sure everything is right. I would also perform link and sync. Very easy to do. You can find a pdf OEM service manual on FeeBay for less than $20.
Learn how to do routine maintenance and this motor will treat you right. I have over 600 hours on mine, but it has taken some work to get there.
I went through this process last year with my OX66 and had it running amazing the second half of the season and this season its a beautiful thing again.
Start with the proper spark plugs........then report back.......
2010 Nitro Z7
2001 Nitro NX882 (for sale)
2013 Ranger Z520C (gone)
2004 Skeeter ZX190 (gone)
1987 Ranger 375V (gone)
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