QuestionI've had no problems with my bike until I didn't use it for three weeks. It rained a lot in those 3 weeks. When I started the bike it ran rough, stalled a few times, which it never did,then it idled o.k. While excellerating, @2,000 rpm it hesitates and if I throttle up it runs fine. It always has that hesitation at 2,000 rpm. I've put in fuel stabilizer and drove for 25 miles and it seems just a tad better but, still very noticable hesitation.Other than that, the bike rides awesome. IT's a 1994 Honda Magna 750 chain drive. I changed the air filter. It has 22k miles.Thanks Bill.
tomsam3@comcast.net.
AnswerTom, today's fuel goes off very quickly, so I would keep stabilizer in it all the time, unless you are going to be back to using it on a regular basis. At this point you can try adding some fuel injector/carb cleaner product, in a ratio that is appropriate to the fuel tank size of your machine. Too much can affect rubber parts in the fuel system, so don't overdo it. You may want to drain the carb float bowls and catch the fluid to see if moisture has worked its way down the fuel system. Water goes to the bottom of the bowls and can slosh around the main jets. I think that ethanol is hydroscopic and will attract water, even out of the air or in the air space of your fuel tank.
Barring that, Yamaha makes some magic carb cleaner that you mix with gasoline and run it down inside the carbs via the fuel line. Let it sit, drain it out and refill with regular fuel again. This all assumes that there is some carb jet blockages as the actual cause of the hesitation. In a bike that is 12 years old, there could be issues with the air cut valves, fuel filter, pump/relay, spark plug caps or plugs getting fouled for some reason. V4 spark modules can go haywire sometimes, but you need to work on one area until you are sure that it is as good as it can be, then move on to something else.
Bill Silver
