July 22, 201313 yr I’m trying to time my TY 250 1977 with little success. Any tips or tricks would be very helpful. I don’t have the pointer on the wiring coil.
July 22, 201313 yr Honestly the best way is to junk the points system and buy an electronic ignition if you can afford it, otherwise it is trial and error and a strobe gun.
July 22, 201313 yr You will need a dial indicator to find TDC and measure the number of mm BTDC. You will then need a strobe to check and adjust the timing. Find TDC then rotate the engine the required number of mm BTDC (probably 2.5 to 3.0mm on these engines) Then put a small mark on the engine case and a mark on the flywheel that exactly aligns with it. Set the points gap exactly then start the engine. Using the strobe check the alignment of these marks and adjust the backplate as necessary. If the backplate can't be rotated then you have to adjust the timing by varying the point gap, increase to advance, decrease to retard. The points ignition on these is generally very reliable. Cheers
July 23, 201313 yr Agreed reliable but fiddly. Electronic ignitions come pre set and never vary unlike points when the heel wears. Adjusting the points gap is also a real pain.
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