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Intermediate spark on 1971 Yamaha ct1c

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Replied by Swoop56 on topic Intermediate spark on 1971 Yamaha ct1c

Most Yamaha pumps of that vintage call for .20 - .25 mm . The .15 mm is a minimum clearance only .
There are likely two or three shims under the big washer , remove one or more , to get correct setting .
10 Oct 2020 04:01 #21

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  • Blukas
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Replied by Blukas on topic Intermediate spark on 1971 Yamaha ct1c

I just checked, there are two. Gonna be gone for the rest of the day, so tommorow I’ll finish the job and ride it around. Before I do that I need to time it right, don’t wanna burn the motor out when there is less oil than how it is now. Already got pretty hot after I ran around the block.
10 Oct 2020 10:27 #22

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Replied by Blukas on topic Intermediate spark on 1971 Yamaha ct1c

Cable was pulling the wheel way too far, so I lightened it up right, added a spacer, and now this is how it’s working, definitely warms up a lot faster, maybe after 20-30 seconds the exhaust pipe is hot. Should I get a temp thermometer? Still need to do a timing adjustment, that might be why it runs hot.
10 Oct 2020 15:24 #23

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