|
1999 15 HP Johnson Problem
Hi all,Just recently bought a little runabout with a 1999 15 Johnson. It seems to
feel like its missing at low speeds but runs fine at higher speeds. I'm not
experienced with boat engines, but I am with cars and it sounds / feels like
its trying to fire but not quiet. The plugs (x2) look ok and not fouled. Any suggestions on where to look first? Thanks in advance for your help |
dragonfly
Jan 21
2006
|
| I don't think James has seen an outboard with the cover off...You need
to provide us a liitle more info..I'm assuming it's a 2 stroke? What
do you consider low speed?(idling, 1000 rpm..? )...Does it
stall?...Does it happen when cold, hot or all the time? Does it miss
when out of gear, or just when underway? Fill in the details and it
will be easier to suggest a course of action...
markv |
markvictor
Jan 21
|
| Replace the spark plugs. They don't have to look fowled on a two stroke.
If this cures it, buy two more. Just because you'll need them when you
least expect it. |
RLM
Jan 22
|
| I find a spray bottle of water is an excellent way to find a nonfiring
cylinder. Run it a low rpm for a few minutes and then spray a little water
on the exhaust as close to each cylinder as you can. If one does not turn
to steam as quickly as the other then you have found the problem cyclinder.
If it has two carbs that would be the first place I look. A lot of carbs
have a low speed circuit. Sometimes two cylinder engines also have
independent ignition too. "dragonfly" <drag@fly.com> wrote in message |
James
Jan 21
|
|
|
Disclaimer: This is a computer-generated and formatted feed of current postings to a public
Internet forum. We do not control the information delivered, nor do we endorse or monitor its
content. Internet forums may carry offensive, harmful, inaccurate, and otherwise inappropriate material.
|
|
