cb 550 500

[simonc]

hi can  a ignition switch and or wiring harness from a550 f2/f3 be used  with a 500 k1 engine had weak spark now none.
The bike f3 550 usa had k1  500 engine fitted , I have installed a wiring harness that came with bike 550 ignition barrel

I do have a 550 engine on bench but the 500 engine is good low miles 9,000     quandry   

[simonc]

cheers odd job will  have another look tommorow  i will change ignition switch for anothe,r the one on there key turns all the way round with two on positions

[simonc]

the running gear frame is f3 1977 the engine is 500 k1 it came with clocks off  the 500,  wiring harness was poor it had 500 ignition but no key

[mickandsej]

I thought I had kill switch issues so I unplugged it in the headlight and just plugged the BW and B together.


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[simonc]

fitted other 550 ignition switch didnt have much time but tried and have spark  but weak

[simonc]

cleaned bullet connectors  as advised spark looked better, tank on petrol in  engine running mainly on three pots but no air filter assembly fitted . well pleased. thanks for the help may need more