Our 19' ski boat developed a hesitation on take off last year. I've tried all summer to correct it with little success. I could use some pointers I guess. From idle when I first push the accellerator the engine initially takes off for maybe a second, then "stumbles" or "stutter" for a couple of seconds, then takes off ok. The harder I dump the throttle on take off, the worse the problem is. We do a lot of skiing so this is really a problem when pulling skiers up. The timing is right. The plug wires are only a couple seasons old, and I bought a new carb (new rebuild) just a few years ago that probably doesn't have 100 hours on it. I have checked the accellerator pump by looking into the carb while pushing the throttle and two healthy streams of fuel can be seen. I have run two tanks of gas with fuel system cleaner through it with little improvement. I plan to replace the plugs next weekend. I inspected the distributor cap and rotor and they look good. I read in another post that on the 260 engine that the pulley crank is two peices and that it can sometimes slip, causing the timing marks to not be ture. Could this be my problem and the timing is off? I sure could use some help figuring this out.
