Hard to down shift

[jtopiso_imp]

Two times now i have had to come to a quick stop on the freeway after riding 70-80 mph for a period of time. Both times I stopped only using the brakes. When I tried to shift down through the gears to 1st while stopped while waiting to take off, the trans would hang up between gears ( I say between because the shift light looks like " - "). It was very hard to get it back down to 1st. Does anyone know why?

Have you ever shifted from sixth gear into first gear on a motorcycle while at a dead stop before? Motorcycle transmissions don't work like car transmissions. Constant mesh (motorcycle) transmissions don't work like this. The gears need to be rotating to allow them to properly engage and disengage. The gears have dogs that interlock with each other and they need to be rotating to properly align the dogs.

Really? After riding a 91' Tenere, a '79 Bonnie, a '95 Trident, two '9x Harleys, 5 '82-00 Laverdas (all kinds of Twins and Triples), 2 '62 Velocettes, '12 VFR1200, '03 KTM EXC, I must say what You describe as a default issue with all motorcycle gearboxes I have never experienced, but do so on my '18 CB1100RS, new. Sure MC-boxes are not Car-gearboxes, but there's no reason why a well maintained bike can't switch through gears, one by one without releasing the clutch or tricking your way through. Sure, finding neutral can be a pain on some models, if you're not used to it, sometimes even then.

Just with pulling the clutch fully I can't downshift in a row (4-3-2-1), without push-pull playing with the clutch from 4th to 1st, lesser from 6th to 1st. It always gets stuck at one or more points, so I release the clutch a bit and pull it again for the next switch. New bike - yeah, I know - run-in. Really? Again, no other needed a gearbox run-in. How weak is that material that it wears in so much, sorry.

Ok, I'll allow the bike to surprise me, now with an oil-change and some adjustments 1000km we'll see how it turns out.

thx
regards,

You are dealing with "dog-to-dog" not allowing you to shift unless one of the gears rotates a fraction of a turn. That's normal on sequential gearboxes:
https://www.youtube.com/watch?v=E2CybLSrN5Q

There is no way to design this kind of gearbox making sure all gears will be aligned with their dogs, allowing them to always engage even when static: that won't happen. It can be minimised at the cost of efficiency or reliability on the dogs themselves, but it can't be done (mathematically) unless all gear ratios are an exact multiple of each other. The more the number of gears, the most likely dog-to-dog will happen.

If it has never happened to you on other bikes... maybe you were lucky, or maybe you hace some "residual friction" on your clutch (it was never completely open), so you always had enough rotation on the gears to ease shifting (at the cost of clutch wear and oil degradation).

in short: "Dog-to-dog" can and will happen on any secuential gearbox that uses dogs for gear engagement. With a synchromesh it would be a different story.