***VIBRATION HONDA CAMPAIGN***

[peterabbit]

Originally posted by Keith Stubbington
Yo Samster

Yep I take in all you said, but my bird is still only 6 months old goddamit .......thinking back it started just before the second service about 4k.....thats when the tensioner was fitted, my 98 bird started much later, and not as noisy.
Thing is my ZZR1100......sh1t did I have one of those......was perfect in the rattle department.
Has anybody else had this problem or am I just being to fussy......how about yours m8 does it rattle?????:dunno:

Keef.

Hi Keith
My name is Peter & i do not what you to think that i no a great deal about bikes because i don't. I have only had my 1997 Blackbird with 17,000 miles on the clock for 9 weeks. I have the same trouble, but only when cold, when i start from cold i get a rattle for only between 15 & 30 seconds if i judge the choke correctly it does not seem so bad. I ask the shop where i bought the bike & they said that it could be that it takes a few seconds for the OIL to circle around the Engine, which seems about right because if i start it every day the noise is less. I was also told that it could be when the fuel starts to go through the CARBY'S maybe these two are linked ie, oil & fuel. Hope this might help in some way.
Cheers Peter.

 

[Keith Stubbington]

Rattle when cold

Hiyah Pete,

I had it in my 98 model, and now on my 2003 model, and it's exactley as you discribe, I've heard of a very likely cause, and that is the cam chain tenioner, (even though mine has been replaced) it works with oil pressure so when cold and not used for some time there's no oil in the setup.
A mate of mine has a 2002 model and I'm goig to compare with his later.

Cheers Mate:beer:

 

[peterabbit]

Re: Rattle when cold

Originally posted by Keith Stubbington
Hiyah Pete,

I had it in my 98 model, and now on my 2003 model, and it's exactley as you discribe, I've heard of a very likely cause, and that is the cam chain tenioner, (even though mine has been replaced) it works with oil pressure so when cold and not used for some time there's no oil in the setup.
A mate of mine has a 2002 model and I'm goig to compare with his later.

Cheers Mate:beer:

Hi Keith
I would be grateful if you find anything out, but if i was to put money on this i would say that it is due to the OIL left in the botttom of the engine.
Cheers Peter.:beer:

 

[Stuey]

Just for your info chaps

The 'Bird cam chain tensioner (CCT) doesn't work from oil pressure, and is a spring tension assisted screw type.

Stuey

 

[peterabbit]

Re: Just for your info chaps

Originally posted by Stuey
The 'Bird cam chain tensioner (CCT) doesn't work from oil pressure, and is a spring tension assisted screw type.

Stuey

HI Stuey
Thanks for info, as i have said i don't no much about bike engines & i only thought of the oil laying in the sump for a while & when starting the engine the oil takes a few seconds to get around the pistons etc & i thought that maybe this was a possible reason why some of us get a rattle in the engine. my blackbird only last's for about 15 to 30 seconds & then it goes away. Some BIRD owners, i have read have replaced the chain tensioner & still get the rattle, some worse than others. I was a bit worried when i got the BIRD at first, but i hope & think that there is not to much to worry about.

Thanks once again.
Cheers Peter.:beer: :beer:

 

[peterabbit]

Originally posted by Keith Stubbington
New June 2003

Portsmouth motor cycles

6750 miles.

No vibes as yet in any revs, but rattely noise always from cold start, seems to come front of engine after 2 mins warm up. gradally clears after quater mile. Returned bike back to supplier they fitted new cam chain tensioner but it didn't clear noise, I put up with it cos I'm pissed off with complaining.

First Bird 1998 carb model had same problem after 20,000 miles with noise but not as bad, sold it at 38,000 miles
Any ideas what noise is??

:bang: Hi Keith
Have you sorted out the rattle from engine yet. I have spoken to a Honda mechanic & he said that Honda 600's are the same & that sometimes it is the oil which works under pressure. I think that i got that right.R#? When engine is warm, this does not happen. So it looks to me that this is a well known problem with some Honda's, something we may have to put up with unless you know anything different.:dunno: :dunno:
Cheers Peter.

 

[Frans]

Just took delivery of my Bird, it is a 1997 model with 17,800km on the
clock.
Bike is standard, beautiful condition and from about 120km/h it vibrates and
is worse at 5,500 rpm/160 km/h. It can be felt on the foot pegs, handlebars,
all over.
When accelerating, it feels rough from about 3,500 - 5,500 rpm. sometimes
remind me of a tyre with a flat spot. It is a new BT 056 at the rear and a
Dunlop D207 up front.

Took it to a dealer and they checked the engine, but could not find anything
wrong according to them. They suggest checking the sync of the carbs. This
was done by the dealer who sold me the bike, unfortunately, they are far
away from my hometown.

Please help!!

Frans
:bang:

 

[Jaws]

Hiya Frans, glad to see you can post ok now

My immidiate reation is the same as yours.. tyres !
What on earth anyone was thinking fitting odd tyres AND more importantly the back one is very very dangerous mate !
It is not a bird fitement and is not capable of handling either the weight or the speed of the bike !

In the various postings of this thread I have read that guys have had the balancer shaft adjustment checked..
believe me, you have not !!
All that has been checked is the mesh bewteen the cogs of the balncer shafts.. the ONLY way to check them completely is to take the engine apart and physically check the shafts are ok !
I have had two occasions where one of the shafts has been manufactured with a slight defect.. Both suffered from vibes around the 4 to 5 k rev mark, both were completely cured by fitting new balance shafts..
I appreciate that is proly not what you wanted to hear but there it is ...

Carb balance.
While it is indeed possible that the carbs being out of balance could cause vibes, they would have to be a long way out !
If your bike ticks over nicely and picks up cleanly when rev'd it is pretty unlikely that is the problem..

 

[Bubba]

Mine gets vibes from start right the way through the rev range.


Had it checked and found that some scallys nicked two of me cylinders and rearranged the other two into a Vee formation. Do you reckon this might have something to do with it?

 

[Bubba]

Thinking back to mine, I had a 98 "W" model, cant say I noticed any vibes through the bars or pegs. The clutch however was louder than me Mille and thats saying sumfink!!

 

[Chippy]

My Bird (99 carbed model, 7K miles) is normally smooth. But if it's not run for a couple of months, on initial start up the engine misfires for several seconds before it picks up and runs OK. Sometimes it stops after a couple of seconds and needs re-starting. During this rough running it rattles and vibrates badly - is that the balacer shaft drive gear backlash?

Once it's going properly, it runs just fine. I love it:lick:

Chippy

 

[Trumpet]

Drain the carbs Vince if you are leaving it for a couple of months, unleaded petrol gradually goes stale and has been known to corrode the float bowls if left in there for a long time, and gum up the jets. Either that or just run it up for a good 30 minutes every few weeks .. Avgas would be longer lasting, less additives. :}

 

[Hoggy]

My 1998 BLACKbird (had it nearly 5 years) was fine, no vibes at all until at about 18000 miles I changed the rusty collector pipes for a new set of Motad stainless.
Pipes good, bike runs great as ever but a very 'fine; vibration now at 6-7thousand revs. Mainly on left footpeg, but can spread depending on rev range to other peg, handlebars and most recently the seat.
Was it all coincidence? I don't know! Hmmm?
Hoggy

 

[Bixxer Bob]

Just thought I'd add my two penn'th. Mine's a '99 FI with 28500 miles on the clock. Had vibes develop in the last 600 miles or so, like everyone else, 3-5500 rpm is worst, through the bars and pegs. It's also developed a general harshness which I can feel mainly through the bars. I'm slowly working through all the normal stuff: new chain and sprockets (first one - scottoilers rule), relaxed the engine mounts and re-torqued them, balance shaft meshing adjusted, front wheel bearings changed (dunno the result yet, just done it tonight and it's raining out) new CCT - obviously- no difference. I'm reluctant to have a crack at the balancer shafts themselves, so I'm going to stick with it for now.
Incidentally, I've got a power commander. I had it remapped this week, that cleaned up everything except the vibes, much smoother throttle pickup out of bends etc.
I'm still annoyed about the vibes, but at least it's not just mine that's doing it. Ho Hummm

 

[Frans]

Just replaced the frt tyre BT020 and wheelbearings, vibe still there. It cured the hopping at low speed, frt tyre was fishscaled. Did the balancer shafts, no improvement. Vibe feels as if coming from clutch/gearbox area under acceleration between 3,500 - 5,500 and stays there onwards.

 

[BRDee]

Bad Vibrations

I have just bought a 1999 CBR1100xxx - dropped it on the first day - bummer!
Too eager on the front brakes at v slow speed - bloke turned right in front of me - no indicators!
Slight damage to fairing -
All repaired - BUT - now I have noticed bad engine vibration at 4-6k revs right through bars and seat -

Do you think the balancers are out?

brdee :bang:

 

[Mid Life Crisis]

2001 Bird 11000 miles
I get the vibes around 3k-4k revs, feel it through the tank which makes me wanna stop for a leak more than i would like too. My bladder control is quite normal off the bike by the way R#?
Gearbox or clutch sounds a bit noisey on deceleration but a mate who has owned a BB said his was like that...... its a damn sight smoother than the enduro bikes i have had over the years..... maybe i need a set of knobblies fitted to make me feel at home on me Bird????

MLC

 

[richard]

Welome BRdee sorry to here that you droped your P&J m8y if its any help most of us have been their @ some time including me :B.. if you need some parts give our own 1200pete a call @ www.blackbirdspares.co.uk/ it will be cheeper than claming on you insurance if its that bad.



R

:bang: %$fan c7u8

 

[richard]

2001 Bird 11000 miles
I get the vibes around 3k-4k revs, feel it through the tank which makes me wanna stop for a leak more than i would like too. My bladder control is quite normal off the bike by the way R#?
Gearbox or clutch sounds a bit noisey on deceleration but a mate who has owned a BB said his was like that...... its a damn sight smoother than the enduro bikes i have had over the years..... maybe i need a set of knobblies fitted to make me feel at home on me Bird????

MLC

Sounds like mine did a few weeks back, I thought all doom and gloom and yep it was the good ole CCT phooked m8.


R

 

[Mid Life Crisis]

Sounds like mine did a few weeks back, I thought all doom and gloom and yep it was the good ole CCT phooked m8.


R

Thanks Rich,
Well that has answered a few questions for me.
I planned to buy the upgraded CCT from JAWS for peace of mind after reading the know weakness with the standard CCT. I better get wifey's purse out lol

Gotta go........The Forest of Dean awaits :}