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The
Bullet: Mysteries & Myths -
Don't just love but get to know your bullet
more - by B. R. Gurunandan
The Neutral Finder
For once, the adjustment is
easier than use !!!
The neutral-finder is a very ingenious device found in the
Bullet gearbox. The non-believers are fond of saying that
it is the only box to need one, but we can dismiss that as
jealousy. For the neutral-finder is a device anyone would
be thankful for in traffic. The heel-and-toe shifter or rotary-shift-mechanisms
pale in comparison for sheer convenience.
You
can approach a halt in any gear, and when you are just about
to stop moving, a gentle trod on the neutral-finder puts you
effortlessly in (the correct !) neutral, free to idle the
engine or kill it. No squinting at the neutral-light, no frenzied
search for the neutral/first, no slipping-clutch-take-offs,
nothing. And Macho guys, with a bit of practice (and probably
more than a bit of repairs) do an impressive show of going
to neutral during a harsh braking operation, and thence to
second with a single sweep of the foot.
For
all it's remarkable attributes, it is a very simple mechanism.
Basically, it just consists of a lever that operates directly
on the gear-selector, sort-of short-circuiting the ratchet-mechanism
thru which we normally shift up or down. There is a stopper
which stops the lever exactly in the neutral position. This
stopper consists of an eccentric sleeve which can be rotated
to adjust the "neutral" position of the lever.
Now I can guess the doubts & questions forming ! In order
of decreasing frequency, they are :
• Hey, it's never worked in my bike ! OK, I never bothered
about it too.
• Hey, you forgot to say it works only from the upper
3 gears.
• Hey, how can you stop a "1-up, 3-down" in
neutral ?
• Hey, how does it actually work ?
Hey, how does it actually work ?
I said it is a very simple mechanism. Simple to the point
of being crude.
But who cares, as long as it works as nicely as it does !!!
However, there are some ifs & buts. If you stomp on it
at speed or with the clutch engaged, you will hear alarming
sounds, and maybe do damage to the gearbox.
Because it simply shifts the gears from (say) top, thru third,
thru second, to neutral ! All with a single push down to the
stopper ! Because it goes thru intermediate gears, the gearbox
should not be transmitting power when you use the neutral-finder.
Which means the clutch should be completely dis-engaged.
Which also means you should not do this at speed, because
even the dis-engaged clutch has enough drag & inertia
to create noises. Of course, when the clutch is engaged, it
could be much more serious than noises.
Hey,
how can you stop a "1-up, 3-down" in neutral ?
Good question ! How do you reach the other side of the stopper
?!!!
I said it is an ingenious device ! See the picture closely.
You see a big gap around the pointer of the neutral finder.
You are forgiven if you thought it was just another typical
example of REM shoddiness ! Hahahahahaaaaaaahahahaha ! Actually,
it is intentionally created lash, so that the lever can remain
on the stop while the selector goes to first-gear position
!
Excuse me while I harp on this again, but I REALLY love this
brilliant bit of engineering ! Not since the day I understood
why the coaches of a train are loosely-coupled have I been
SO thrilled by any mechanism !
Hey,
you forgot to say it works only from the upper 3 gears
No, fella ! It works from the first gear as well !
Consider this : When operating from higher gears, the neutral
finder rotates the selector shaft to the neutral-position
based on stopper position.
When the selector-shaft in first gear, the lever is ALREADY
on the stopped position. So all you have to do is to HOLD
it there, with your heel, and press the gear-lever with your
toe towards the second gear, whence the neutral-finder acts
as the stop and stops it in neutral ! Try it !!
Hey, it's never worked in my bike
That may be because nobody bothered to adjust it.
I said it is easy to adjust, but first start using it consistently.
If you sometimes coax it gently to the stopper, and sometimes
stomp on it swiftly, it makes no difference to the lever which
anyway stops at the same place, but it does make a difference
to the selector assembly, which has some mass and thus inertia.
It could overshoot or bounce, causing erratic results. If
you use a gentle prod each time, you may well find it is already
fine and needs no adjustment !
Diagnosis
Let us take a case where the neutral finder really does not
work. Which means that the bike remains in gear after the
neutral-finder has been correctly used. There are two possibilities...
It remains in SECOND gear, which implies that the neutral-finder
the lever should move further down to get the bike into neutral.
OR
It goes thru to FIRST gear, which implies that the neutral-finder
the lever is moving further down than it should to get the
bike into neutral.
Adjustment
Simple, eh ? Loosen the bolt holding the eccentric, turn to
correct position !
Newbie-Hint
Park the bike with some "packing" under the centre-stand,
so that the rear-wheel is free to rotate. Loosen the bolt
holding the eccentric, turn it so that the "big-side"
is down. Now start the engine and engage second gear. Slowly
pull the neutral-finder down till it slips out of gear. Turn
the eccentric to stop the lever at that position. Tighten
the bolt.
Note:
The above applies to RH shift gearboxes. I have never used
a LH shifting Bullet, so I do not know how far all this is
applicable.
By B. R. Gurunandan
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