View Full Version : 1996 225 HP LOSING RPMbS GREATER THAN 4000

10-14-2009, 03:37 PM
"My yami seems to loose power/rpms after 4000rpms and runs back up then down. When its doing that I squeezed the fuel bulb and then it runs better but when I stop ir returns to the influx of RPMs. I lose anywhere from 300-600 rpm's. I changed both filters. I might have to change the bulb, but don't think its that. This is a 6 carb and dont think it has an o2 sensor. Please Help I would like to go out this week. LOL Thanks"

10-15-2009, 01:23 AM
Fuel pumps? Check the plugs for washing from to much fuel bypassing a bad diaphram.

10-21-2009, 09:52 PM
225 what?

10-23-2009, 01:34 AM
If you have to keep squeezing the fuel primer to maintain steady revs you have a fuel pump prob

11-17-2009, 08:17 PM
"Start with the easy stuff first. I chased a problem like that, and it turned out to be a loose hose clamp that was sucking air."