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When do you guys shift ?

Started by cozy, January 05, 2004, 09:17:35 PM

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cozy

7, 8, 9k?
Still breaking it in- was curious where some of you more experienced riders will be on the tach when you kick it up a notch, especially interested in how you treat the lower gears.
**No matter where you go, There you are.**
2001 Ducati M750 Metallic

The Antibody

It all depends on how I'm riding at the time. Can be at 10 thou sometimes, but usually it's around 7 or 8.

 -Anti
Once the President of Coolness, always the President of Coolness.

"Just try not to screw it up!"

Briliu

well, when my bike was broken (torn diaphragm). I was shifting at like 10k because if i shifted below that it would fall out of the range in rpm i got power. Now that the stupid thing works (WOW POWER!) I can shift at like 7k and be good. But if im showin up the gimp in the saturn that wants to race me, i will still shift at like 10k. Also, I dont clutch to shift past 2nd gear (1 - 2 clutch, 2 -3 clutch, 3 + nothing  :mrgreen: )

One little problem though.... Either Im not shifting in all the way, or something is seriously wrong. I've had the bike pop out of gear at like 80mph @ 9k or so, and just spike to redline. Which isnt good, it's happened twice, and let me tell you, thats a nasty sound. Anyone have any ideas?
Happyness is like peeing you pants.  Everyone can see it but only you can feel its warmth.

The Antibody

That is a bad sound. I've hit the red a couple of times. Not good. I have had it stop running all together when costing down a hill on two occations also. I had the clutch in, and it quit on me. Another one to think about.

 -Anti
Once the President of Coolness, always the President of Coolness.

"Just try not to screw it up!"

JamesG

I shift when she starts shrieking and rattling.  :o
James Greeson
GS Posse
WERA #306

Bob Broussard

According to the tach on my 89 GS it shows 12000. Beyond that the valve springs can't handle it. But that's at the track.
On the street I'll shift around 5-6 grand general riding.
But I always use the clutch to shift. Even on my race bike. That's just me :roll:  I feel it puts alot of strain on the tranny. It could posibly bend a shift fork. And when it jumps out of gear it will round off the posts on the gears and have trouble holding it in gear.

The Antibody

Perhaps thats your problem Briliu. I agree with Bob. I have yet to shidt w/o using my clutch. Thats what it's there for right?

 -Anti
Once the President of Coolness, always the President of Coolness.

"Just try not to screw it up!"

vtlion

so the clutch just disengages the engine from drive train (tranny) right?  Will you really run the risk of wearing out the drive-dogs on the tranny gears by not clutching.  Clutch or not, the gear that you shift up into will engage the lower gear the same way right?

I'm curious about this phenomenon myself, because I've got a supersport now that I bought used.  I'm a little apprehensive about pushing it because I know that people generally associate gears slipping with poor shifting technique causing gear-wear, but I still don't understand how clutching takes any stress off the drive dogs.
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scratch

vtlion,

It doesn't. And that's why you can upshift without the clutch. The only real difference is that you chop the throttle when you do a clutchless shift, thereby removing the driving power from the dogs "allowing" them to "float" and you can shift. You're basically removing the driving power that connects the power from the crank to the clutch to the driving gear's dogs to the driven gear's doghouses to the rear wheel.

I usually shift at no lower than 5.5k in first and sixth, and 5k in all the others. And I downshift at 4k in all gears (using the clutch)(or I have to wait til 1.5k in second when coming to a stop, if I missed my shift).

Hope this helps!
The motorcycle is no longer the hobby, the skill has become the hobby.

Power does not compare to skill.  What good is power without the skill to use it?

QuoteOriginally posted by Wintermute on BayAreaRidersForum.com
good judgement trumps good skills every time.

Briliu

i ALWAYS downshift with the clutch, first few times out i had a nasty noise when going from 2nd to 1st (using clutch) so now i just jam it down really hard.

When i do the clutchless upshift it sounds the same as if i were using the clutch, its just there is no loss of power. Slight upward pressure on the shifter just before you want to shift, then let off on the throttle and pullup hard (just like normal shifting) on the shifter and it pops in and away i go!

Funny thing is, first time i had it slip out was when i was on the freeway doing normal shifting (before i learned to do it without the clutch). 2nd time was after clutchless. Both were in 6th gear, it'd be reving up to accelerate, then just pop out and go REALLY loud. The gs doesnt have a rev limiter does it? Because the tach just jumped to 11.5 or something and bounced around there.

I am going to have to take it easy this spring and see if i can narrow down whats happening then try and fix it (be it either technique or mechanical)
Happyness is like peeing you pants.  Everyone can see it but only you can feel its warmth.

Lars

If you're using the right shifting-technique with the clutch it will put a lot less stress on the drivetrain. If you shift without the clutch, more strain is put on the geardogs and they will round off sooner, causing the bike to pop out of gear. With clutchless upshifts you need to put more force on the shiftlever so you risk bending the shiftforks wich also causes popping out of gear.

When you shift the right way (with clutch) you will notice that you barely need to touch the shiftlever, it will almost automatically slip into the next gear. With some practice, you will be shifting as fast as when you do without a clutch. So there's not any reason to do clutchless upshifts other than wishing to destroy the bike. Clutchless downshifts are even worse.

Pulling the clutch in separates the crankshaft (driving power) from the transmission. When you shift, the only force on the dogteeth is from the rotating mass of the transmission gears. With clutchless upshifts there's always a bit of power transmitted from the crank, even if you chop the throttle partially. You will always hear and feel  a louder "clank" than when using the clutch, especially at revs lower than 7-8000.

Sideshow

Eventually you can end up with a motor like I had in a parts GS450 I bought (same lower end).  The guy must have thought not using the clutch was cool.  The result is a shift dog that allows you to downshift into second, but not put any power there.  Or you can upshift from 1st to 3rd really easy.  I suggest not power shifting if you like your GS.
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scratch

I would like to make absolutely clear that I do not advocate clutchless shifting, and I don't shift without the clutch.

Also, the reason why I shift at 5.5k from first to second is to overcome the rpm difference between the two gears and to keep the rpm's above 4k when I shift to second. And in the higher gears, to keep up the rpm's to have some decent power.
The motorcycle is no longer the hobby, the skill has become the hobby.

Power does not compare to skill.  What good is power without the skill to use it?

QuoteOriginally posted by Wintermute on BayAreaRidersForum.com
good judgement trumps good skills every time.

JeffD

I say shift where you feel comfortable.  I used to shift at anything below 6k because I was afraid I was going to break something.  YOUR NOT HURTING anything by going up to 10k.   Ask the racers here,  they'll tell you that sometimes they are screaming in 5th gear doing 100+mph down the straightaway for a mile, then take corners and keep it screaming!

For me an average ride will consist of making sure the bike is warmed up, (say at least 5 mins riding down the road) then its game on.  I was told that riding a MC is not just transportation, its a SPORT, because you have 1,000,000 people that can't see you and its your job to make sure they dont hit you when they are talking on their cellphone drinking coffe while reading the newspaper.   So get your ass out there and have fun.  

I dare you once you break in your bike to just wring it up to that 10krpm and feel it scream.  And as long as you make sure that everything is in tune (valves, etc...) you wont be hurting a thing.
The world does revolve around us, we pick the coordinate system. -engineers

dgyver

Just shift before the buzzing starts to come from the top of the engine.  :mrgreen:

Always use the clutch when downshifting unless you like rebuilding transmissions. A lazy shift is worse than a clutchless shift. If you hit a false neutral and rev, a worn/bent dog is very likely. Make sure that you have it in gear before letting out the clutch. That is another reason I like GP shifting better, more positive up shifts. I have clutchless shifted alot on different bikes (and even my car) but limit it to only when needed. Also, don't pamper the bike during break-in.
Common sense in not very common.

Bob Broussard

Shifting up without the clutch is meant for the race track. The objective is to be able to hold the throttle wide open while shifting. To accomplish this, racebikes have devices that interrupt the ignition when the shift lever is moved. They can adjust the duration of the ignition cutoff for the ideal shift.
They also have undercut transmissions to minimize jumping out of gear.
During a race, this can accumulate fractions of a second and add up to quicker laps.
If you don't have a quickshifter setup on your bike, you have to back off the throttle to shift.  You gain absolutely nothing by not using the clutch at the same time.
It is ok to do it on occasion though. I had the clutch slave cylinder go bad on my Ducati and I had to shift without a clutch to get home.

alerbaugh

When breaking it in don't take it above 5 till 600 miles.  Get it serviced then don't take it over 8 till around 1,000 miles.  after that it depends on my mood.  In the morning I need an adrenaline shot i'll take it to 8,9,10.  If I'm low on gas or riding behind my dad usually 4,5,6.  Really where ever you want.
2002 GS500 (sold)
2003 EX500
2004 YZF600R

500rider

If I have an open road in front of me and I'm accelerating ... I shift around 9-10k where I feel the power band is.  Usually I don't shift at less than 7-8k.  The bike just starts moving at around 5-6k for gosh-sake.

Break in period.  There is a well known article on the web:

http://www.mototuneusa.com/break_in_secrets.htm

Taking it easy on your brand new bike may not be the best thing for your engine ... although it may save you from crashing.  I think the idea of taking it easy on the motor for the first 1000kms is an old idea that hangs around because ... we always did it that way!  Also, manufacturing quality has also improved over the years (although my friends $11, 000 Ducati had a metal chip inside the tranny which caused a wrecked transmission)

Why don't they run the damn things in at the factory?

Rob
Rob

00 GS500
89 Katana 750

Lars

Quote from: dgyverI have clutchless shifted alot on different bikes (and even my car) but limit it to only when needed.

How can you do that in a car  :?  Except when it has a sequential transmission (like a motorcycle, or... a rally car :P) it will take a lot of force to move the shiftlever and I don't want to imagine how the synchro-rings look after this  :o

alerbaugh

So taking a new bike to 7,8,9 isn't bad?  So why print it.  Just to keep new riders from getting squirly on their first time out?  I remember I had 600 miles my first month and I never had my license for that just my learners.
2002 GS500 (sold)
2003 EX500
2004 YZF600R

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