(07-14-2019, 07:03 AM)max_imp Wrote: Hi Bob, the "play" you refer to is the engagement space between the "dogs" and the gearwheels, some of which are moving sideways on splines and others are stationary on the shaft.

The space "lash" between the dogs and the slots they engage in is required because the time involved to move the gearwheels sideways whilst rotating past each other, if there was no or very little space "lash" it would be a hard task to get the dogs to engage in the slots, so it's a compromise between easy shifting and gear "lash".

Some dogs have more teeth than others ( time for a joke here ) and the "lash" would be different for different gears, to try this out you could put the cb1100 on the centerstand and shift through some gears with the engine off to check the wheel for play by hand in the different gear positions.

The crankshaft is directly geared to the clutch and the clutch plates are engaged and together with the primary shaft and gears become part of the " flywheel ", so no play there.
The gear wheels themselves have minimal play on the splined shafts and the chain has some effect as have the rubber transmission dampers in the rear wheel, you can check those by moving the wheel back and forth in gear and look at the play between the outer and inner parts of the rear wheel hub ( the space behind the sprocket ), there should be minimal play there.

Here is a video that shows the inner workings and shortcomings of the gearbox and may provide some appreciation as to the delicate parts of the drum-shifter system;

https://www.youtube.com/watch?v=-nZjbMyIo8I

and another;
https://www.youtube.com/watch?v=L0mtwcaoXDo

Personally i tend to ride in second or third gear and freewheel with the clutch pulled in when the shudder becomes a bit much, it also sounds better for any " spectators ".

Also be aware thet the chain tightens some when you sit on the bike, if there is not enough play ( if i can push the chain up to just touch the end of the plastic guide i am happy ) the chain will tension up hard and wear out in a remarkable short time, hope this helps some

(07-14-2019, 08:51 PM)jimgl3_imp Wrote: the only other thing I failed to say (that I know of) is that it's a fully synchronized, constant mesh transmission. But Max obviously has far more technical knowledge than I do, so he's probably right and I'm probably wrong. I am just surprised by his findings.

(07-14-2019, 10:22 PM)jimgl3_imp Wrote: I don't recall how to post photos, but looked at technical drawing of the tranny. gears appear to have 5 or more dogs each, so at least they don't just have 3 like those old Kawi's in the videos. and just trivia, but I recall back in my track days, Kawi's were having to be "undercut" to make them work. I assume that means grinding off some of the gears like that guy described in the video.

(07-14-2019, 04:37 AM)ohiorider_imp Wrote: At that time, I think I was advised that all the CB1100 exhibit some clunking on off/on throttle, unless one 'rides around it' by feathering the clutch. I keep my chain lubed and adjusted per the book. It's not a problem, it just seems out of keeping with the overall quality feel of the rest of the bike. However, I was curious if any of the owners on the forum (or Honda) had come up with a fix.

Doubtful, I know, since it's probably in the primary drive or clutch pack.

Any thoughts?

Bob