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550 K1 : up-shifting issues (mostly low RPMs)

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Erny:
Thanks for the feedback

I did road test many times already when riding in my favorite  track (uphill, many curves) - so full trottle, shut, full again on 2nd gear many times (believe me I was violent enough) no single issue, 2nd stayed engaged all the time. And as I said before, shifting on higher rpms is all ok.

Concerning lever travel - fact is that I dont have dot on shaft to know exalt position of lever (on lever dot is clearly visible), so I set to my best guess. Not sure if eventual shift by 1 tooth can cause this.

It simply behaves the way when i shift up that I feel something blocking lever to go up more. Either I keep it lifted all possible way up longer and it enegages (lever moves more up) or release it and do second lift to engage it correctly.

I'll open clutch anyway to check it.

Practical question here - is it enough to lay bike on left side to avoid draining oil?

Nurse Julie:
If the lever is out by one or more notch upwards on the spline, the lever can easily foul on the casing when changing up through the gears. Because there is not enough room for complete upward travel of the lever, it may not be engaging the gears correctly at first lift of the lever. As a simple experiment, remove lever from shaft, position lever nearer the ground on the spline and see if it makes any difference. It will may not feel a comfortable position for your foot but, temporarily, it is worth a try. Not sure why you haven't got dot on end of shift though, most strange.

Johnwebley:
Try changing gear without using the clutch. Just briefly ease the throttle as you move the lever.
Try to move it all way. As far as the lever will go.
Ideally wear a pair of light shoes so you can feel the engagement.

Sent from my SM-A750FN using Tapatalk

K2-K6:

--- Quote from: Erny on August 19, 2019, 10:41:15 AM ---
Practical question here - is it enough to lay bike on left side to avoid draining oil?

--- End quote ---

Yes ok if you need to look in there.  Make sure your battery is spill proof or remove it before doing this to prevent acid leaking.

You can use an old car tire with a clean sheet or similar to lay it on,  remove side panel etc to avoid damage.

I set my gear lever currently for bike boots with a patch on them, but if I go out with just trainers I can get false neutral there from them not reaching as high. It's only a small difference but it shows with a false neutral if I don't concentrate.

It is a slightly cumbersome action of rotary motion (selector drum) converted to linear action (movement of selector fork) a bit like a very big nut and bolt as they move.  It's a wonder they work as smoothly as they do generally.

If its staying gear under full loading it does suggest that the selectors,  dogs etc are all OK and avoid any need to split the engine.

Erny:

--- Quote from: Nurse Julie on August 19, 2019, 11:00:33 AM ---If the lever is out by one or more notch upwards on the spline, the lever can easily foul on the casing when changing up through the gears. Because there is not enough room for complete upward travel of the lever, it may not be engaging the gears correctly at first lift of the lever. As a simple experiment, remove lever from shaft, position lever nearer the ground on the spline and see if it makes any difference. It will may not feel a comfortable position for your foot but, temporarily, it is worth a try. Not sure why you haven't got dot on end of shift though, most strange.

--- End quote ---
Julie not sure if I understand you - I do not see how lever can foul on the casing...
Found pic before I disassembled lever (but not sure if it was correct as there is missing dot on shaft and not sure if shifting was working fine as I did not tested it enough ) and after - how it is now. You can see I put it lower then it was.

To me it is just shaft with notches that allows in principe lever to be adjusted according rider's preference so shall not normally create such issue.

Maybe if someone has pic showing proper lever position on the shaft - I can test it.

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