SOHC.co.uk Forums > CB500/550
550 K1 : up-shifting issues (mostly low RPMs)
Erny:
Time to work on another iusse I'd like to fix (low prio till now).
I have shifting issues on lower RPMs, typically when cruising in city traffic or smooth ride (slow acceleration, shifing on low RPM up to 3-4k)
It is almost impossibble to shift up from 1->2, 2->3, 3->4 nomal way, practially always neutral appears (between 1 and 2) or false neutral between 2-3 and 3-4.
4->5 usually works
Scenario:
When I shift, I move lever all way up and feel I cannot move more, like there is some block, more force does not help, so only neutral is engaged. If I try to keep it lifted up longer I feel block is released and upper gear is engaged, but not always. Most of the time I have to release cluch and lever, then press again clutch and then i can shift from neutral to upper gear.
You can imagine it is very annoying when starting from traffic lights, you want to be fast, but then 1-neutral-2...shame ::)
What is strange, shifting 2->3, 3->4 works fine in higher RPMs (stronger acceleration), or at least I don't observe it. Shifting 1-2 in higher RPMs is not perfect too (neutral appears) but better than in lower RPMs.
Donwnshifting is OK, all gears, all RPMs.
Clutch works perfectly, very smooth.
I suppose this is not just a standard "feature" of 550.
Was thinking if it can be related to oil used?
I use mineral MOTUL 4T 3000, 20W 50, the same as on my CB750 K7 (that works perfect)
Any other ideas?
Should I be worried that I need to open engine? It was not open yet, 15.000 miles on the clock.
Johnwebley:
Try just partially pulling in the clutch.
Sounds like the gears are not turning at relative speeds. So they don't mesh and engage.
In many ways. It is more difficult to ride slowly than fast
Sent from my SM-A750FN using Tapatalk
robvangulik:
You are (trying to) ride it like a Harley.
--- Quote ---You can imagine it is very annoying when starting from traffic lights, you want to be fast, but then 1-neutral-2...shame ::)
--- End quote ---
If you want to be fast, why are you shifting before 3-4 k rpm? How fast are you going in first gear with those revs? 15 mph?
Erny:
--- Quote from: robvangulik on August 08, 2019, 02:37:27 PM ---You are (trying to) ride it like a Harley.
--- Quote ---You can imagine it is very annoying when starting from traffic lights, you want to be fast, but then 1-neutral-2...shame ::)
--- End quote ---
If you want to be fast, why are you shifting before 3-4 k rpm? How fast are you going in first gear with those revs? 15 mph?
--- End quote ---
does not make sense to deeply discuss it, it is depedning on situation, style, mood...simply why not? Shifting in low RPMs was never a problem for any other bike I had or I have, except this one.
So that's why I'm asking if it is normal or not.
Nurse Julie:
Totally random thought here....have you had gear change lever off recently and if so, did you reposition it correctly on the spline with the dot on the spline and the dot on the lever lined up? I also find my gear change is very tight in all gears at low revs when the engine is hot....this is a normal thing with these old Hondas and many forum members experience this.
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