Topic: CB500 pops in and out of gear?

[Jygge]

Hi everyone!
Just finished my rebuild and the bike works fine BUT, when I start to accelerate on 1. gear
it sometimes just pops out of gear and instantly back. Any thoughts.. 

[bryanj]

Worn selector, gear, selector drum or all 3 or broken detent spring (behind clutch basket)

[Jygge]

So i'm going to have to do the rebuild all over again? Should have done this the last time I got the engine out.. But the gears seemed all right to me so I just put them back in.

[SteveD CB500F]

You can do the job by removing the lower crankcase only.

I've not tried it but my 500 jumps out of third gear. I have all the bits and just need to get to it!

Take a look at this option:

http://web.archive.org/web/20080129050926/http://www.hondapeople.com/four/cb500/gearshift/500fgear.htm

As you can see, this is an archive as the original hondapeople site has long gone. Shame as it had all the pictures on it!

[bryanj]

Start by pulling the clutch cover and inspecting the mechanism behind the clutch, it may be there and that has to come off to split the cases anyway

[Jygge]

Thank god for the lower case.. Do you guys know where to get these parts if they need replacement?

[SteveD CB500F]

You can get the individual bits from David Silver, although one of the selector forks is unobtainable and they're not cheap.

I bought a whole gearbox off eBay for £40. Problem with breakers though is that you can't guarantee that the bits you buy are going to be any better than the stuff you take out!