Kommando unlogged wrote:Have you tried a bump start, alternately don't know how experienced you are on kickstarting, the B50 requires you keep to the full drill.
Tickle Carb, with valve lifter engaged turn engine over twice with throttle closed, release valve lifter, operate kick start slowly until resistance is felt, engage valve lifter and operate kickstart slowly to just move piston over TDC, release valve lifter, allow kickstart to return to top, turn on ignition.
Now you are ready to kick bike into life with all the force you can muster, keep throttle closed until it catches and then use to keep the revs up until idle is reliable.
Finally, we would like to fit it with a tachometer. This is a new desire, since engines that don't run do not need one. I have searched for the necessary hardware, but have been unsuccessful. We can find the instrument itself, I believe, but have had no luck locating the tach drive parts that go in the engine case. Any ideas?
Your starting drill is key. Once we started the engine we checked the timing with a strobe and found it was advanced a bit. However, we reset the timing at less than 5000 rpm I am sure, because we are reluctant to press it hard until we are satisfied that its innards are o.k.. If we set the timing correctly to the 5000 rpm marks, but did it at maybe 3000, does that mean that we are still too advanced at kickover? Lack of a tachometer leaves us uncertain about what we have done.
Nothing wrong with your response timing. Our earlier progress has again disappeared. One problem we have is of our own making, we just are not able to get together often enough to get persistant results (my friend and I live nearly two hours apart, one-way). Two weeks ago we were going to attempt again, having retarded the ignition timing which mistakenly was set too advanced. Our efforts were only too brief. When we turned on the fuel tap, fuel poured out of the carburetor like it was connected to a water hose. We pulled the float bowl and found a bit of wear on the rubber tip of the float needle. We are seeking a replacement, but the leak was so fast that I suspect there are other problems.