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As far as the CB500/550s, there seems to be one place only where this tool fits perfectly and that is at the throttle cable adjusters.
Throttle cable adjusters are 10mm... [...]
[...] ...so if it fits there it will also fit the tappet adjusters, so that's a more likely use that Honda would have put it in the toolkit for.
Quote from: Oddjob on June 20, 2023, 02:15:16 PMThrottle cable adjusters are 10mm... [...] Mine are 8mm.Quote from: Oddjob on June 20, 2023, 02:15:16 PM [...] ...so if it fits there it will also fit the tappet adjusters, so that's a more likely use that Honda would have put it in the toolkit for. Really... in a CB500/550's toolkit? My tappet adjusters have 10mm locknuts.
Definitely the adjusters at the handlebars are 8mm.The tool was in CB500 toolbags, looong time before the CB400F (or CB350F for that matter) arrived.Another question: what was the WRENCH AXLE extra's eye about? https://www.cmsnl.com/products/wrench-axle_89202283000/ 26mm probably for the rear axle. Could the second one have been 23mm to advance the special cranknut (behind the ignition cover)?
Tappet adjuster lock nuts are smaller than 10mm on the 400/4, about 8mm if I remember correctly. That's why I think it is for a 400/4 tool kit and probably hundreds of other small Hondas.
Quote from: deltarider on June 20, 2023, 06:21:23 PMDefinitely the adjusters at the handlebars are 8mm.The tool was in CB500 toolbags, looong time before the CB400F (or CB350F for that matter) arrived.Another question: what was the WRENCH AXLE extra's eye about? https://www.cmsnl.com/products/wrench-axle_89202283000/ 26mm probably for the rear axle. Could the second one have been 23mm to advance the special cranknut (behind the ignition cover)?That tool was not included in the CB500/4 tool bag. Here is a photo of my owners handbook for a CB500/4, printed in 1971 and that part is not included. (Attachment Link)