Just bought a secondhand Yam' 2hp, a couple of things to sort out on it, I thought I should change the impeller. Took the gearbox off, undid the impeller housing bolts & found the housing wont slide up the shaft!. Surely you dont have to take the gearbox apart to get the shaft out do you? Your advice will be most welcome!.
Next thing is the tickover, this wee beast seems to rev pretty fast & therefore would shoot off with me clinging on for dear life.....well ok not quite, but you get my drift. I can find a friction type screw which grips the throttle lever and a small screw below this, is this small one the idle adjuster ? .
One other thing which it doesn't have is a tell tale water jet, just a bit of water coming out of the exhaust on the leg, but not a great deal, this is what led me to check the impeller, other than that it seems a pretty good little engine, should get me around the moorings quite nicely.