Im trying to make a timing rod.The one that goes between the steering column and timer. I just dont know where the timer should be placed for TDC any ideas?..
Jim I believe the correct setting is with your spark lever all the way up the #1 plug should fire at 15 degrees past TDC. This may be different depending which timer you are using and if you hand crank or not.
1. Remove #1spark plug.
2. Spark lever way up.
3. Turn engine with crank to 15 degrees past TDC on compression stroke. (I use a piece of coat hanger wire to feel the piston come up.)
4. Set the timer so that #1 coil buzzes.
5. Bend the timing rod to fit...Firing order is 184.108.40.206.
I guess at 15 degrees. It's just after the piston (your wire) starts down.
I hope this helps
That helps a bunch I will get right on that in the morning...Thanks again
Just to clarify. That correct setting of 15 Degrees after TDC is the correct place for the timer to fire and it does not matter which timer you are using nor whether you eventually will hand crank this thing or if you have an electric starter. The setting of 15 Degrees ATDC is with the timer lever all the way up to full retard position.
To determine the compression stroke I loosen #1 plug till only one or two threads are still holding it in. Then I squirt a little WD-40 (or any oil) around the base of the plug. Turn the engine slowly with the crank until the oil bubbles and then you will know you are on the compression stroke. It's a bit difficult to hold your thumb over the hole and turn the crank at the same time.
note: Make sure your ignition switch is OFF.
I set my spark lever as outlined here at 15 degrees post TDC. When starting I pull down the lever a few notches, crank, and once running, I pull the lever down some more notches. I am interested in numbers...ideally, how many degrees post TDC should the lever be set, (a) when cranking and (b) when running normally.
William, starting on battery lever all the way up at 15ATDC. Starting on Mag about 4-5 notches down. When running, adjust to sweet spot.
I think that I got it pretty close with the rod. Finally got it running, now I have to free up the clutch. Sure has alot oil and gas leaks, will get to that later...Thanks again