Topic: k7 vs k8

[Bonesaw]

what's the difference between a cb750k7 and k8? Reason I'm asking is I believe I have a '78 K8 and I'm trying to get new braided oil lines for my bike. Carpy wants 100 bucks for a set of two, I found a site where I could get them for around 1/2 that. But the site says they are for a 77-78 k7.

[BobbyR]

They are the same bike for your purpose. The purists call the K8 a K7 since there was no K0. If you look on Hondachoppers there was some head mods in 1978.

[Bonesaw]

sweet, that helps, now I can save some money 

same goes for cam chain/drive chain? Hondachoppers just answered most of my questions, but does the "larger cam chain tunnel" mean I can still use k7 chains?

[Jerry Rxman Griffin aka MuthaF'er]

K8 had stronger valve springs from F2/F3, retainers and different keepers thus requiring different valves AFAIF simply due to the different keepers. Valves still 31/28. Other than that it is a K7

[754]

 K7 has a two-piece brakeline with the switch on the triple tree.
 Also adjustable needles in the carbs.

 K8 has a 1 pce brakeline and the front switch is in the mc.