The New And Improved Unofficial R65 Forum V2
General Category => General Announcements => Topic started by: jusgus on February 25, 2012, 09:51:09 AM
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If the coil is good, check to see if the lead from the coil to the timing hole is long enough. It should reach easily with some slack and an inch or two to spare. Remove the coil from the engine and wrap the windings with electric tape. (Don’t overdo it or the spark plug cap won’t fit over the coil.)
The Light holder is a clip made from a strip of brass. Cut a piece 1/4” wide by 2 3/4” long by approximately .025” thick. (I did not have any sheet brass so I cut up an old 1 1/2” chrome plated brass lavatory drain pipe.)
Form the brass strip by wrapping it around a 1/2” bolt or dowel, but leave the last 7/16" straight. Bend the 7/16" straight end 90 degrees and then make a slight bend outward on the very tip. Take the plug out of the timing hole on the side of the engine, form the strip into a clip that fits snugly onto the edge of the timing hole with the straight part inside and the round part outside.
Drill a 1/16” hole about 1/4" from the straight end of the clip and offset it a little to one side. Place one leg of a Radio Shack (#276-0017) 5mm high brightness white LED into the hole in the clip and solder it in place protruding a little less than 3/4“ out from the clip. (I think the long leg is positive and the short leg is negative but it doesn’t seem to matter. I solder the short leg.) Cut off the leg on the back side of the clip and file it smooth.
Cut 2” of Harbor Freight 3.5mm heat shrink tubing and slide it onto the running end of the coil wire. Strip 1/2” of insulation from the coil wire and solder it to the second leg of the LED. Slide the heat shrink tubing all the way up to the bottom of the LED and shrink it in place. Then bend the LED leg and coil wire around the outside of the clip and use a small piece of wire to tie it down and out of the way on the back of the clip.
Screw the coil onto the spark plug and connect the plug wire to the top of the coil. Clip the light holder into the timing hole. Turn the engine over manually to be sure the light won’t get caught in the flywheel. Use a flashlight and a piece of bent wire or an o ring pick to aim the led at the timing mark on the flywheel. (I cleaned the flywheel and marked the timing mark with a little white paint.) Start the engine and set the timing.
Once you finish timing your motorcycle, place the Tool Kit Timing Light into a Little Readers glasses case from The Dollar Store and put it away in your tool kit, if you can find room for it.
I believe that as more people experiment with the Tool Kit Timing Light that improvements will be inevitable. I only hope that anyone who refines or improves on the basic idea will share their knowledge with the rest of us. Thanks.