Re: help! Now won't start
Brokenboat.... Iceman asked what the model number of the engine was. I didn't see a reply to that. The model number would pinpoint exactly what you have and would help everyone that's reading about your problem.<br /><br />If your engine ever ran properly with its present powerpack, and you still have ignition (spark) on all cylinders (with the s/plugs removed) that will jump a 7/16" gap, then it's quite unlikely that any problem exists with the powerpack.<br /><br />You state that the compression on all cylinders are in the area of 120 psi. If you have spark and compression, this would lead me into the fuel section..... unless someone has had the flywheel off and did not torque the flywheel nut properly. This would cause the flywheel key to shear (even so slightly) which would throw the engine out of time.<br /><br />Now, you say the original problem, in essence, was that the engine would not hit full throttle/rpms. If the compression and spark were normal, usually this problem is caused by fouled, clogged, gummed up carburetors. If all else was perfect and you rebuilt the carbs properly, making sure that the high speed jets were cleaned thoroughly and that all of the jets were re-installed where they belong, the high rpm would be caused by improperly synchronized carbs or an air leak between the carb body and the intake manifold..... or the flywheel key problem as mentioned above.<br /><br />Pertaining to the floats... I suggest you forget about the gauges and measurements. Simply hold the carburetor body upside down and look at the float from the side. Adjust the float so that it is ever so slightly higher on the end opposite the hinge pin, then make sure that when viewing the end view that it is level and not tilted.<br /><br />Exactly what is this engine doing now? Does it attempt to fire, backfire out the exhaust, fire or spit fuel out the carburetor throats?<br /><br />Also.... the obvious that may be overlooked, does the fuel by any chance have any water in it, or has the oil bulb been pumped by accident that would load the carbs with oil?<br /><br />Or if you've found the problem, let everyone here know what you found.
<br /><br />DC
