neil0965 Posted July 22, 2013 Report Share Posted July 22, 2013 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. Quote Link to comment Share on other sites More sharing options...
mattylad Posted July 22, 2013 Report Share Posted July 22, 2013 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. 1 Quote Link to comment Share on other sites More sharing options...
dadof2 Posted July 22, 2013 Report Share Posted July 22, 2013 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 1 Quote Link to comment Share on other sites More sharing options...
mattylad Posted July 23, 2013 Report Share Posted July 23, 2013 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. 1 Quote Link to comment Share on other sites More sharing options...
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