Rattling (or is it knocking) sound between 3 to 4k RPM

[speetdemon]

My Busa gives out loud rattling sound in 6th when pulling from 3000 to 4000RPM. Isn't that loud in mode B and C or in lower gears. Looks like it gets worse with load. The bike is 350miles old and all stock. My mechanic and I think its coming from somewhere behind the engine or front sprocket area. It really resembles knocking or predetonation. I even swap back to standard exhaust system. Still the same. No difference as compared to the slip ons.

Anyone has any ideas or have seen this before? Is this normal? lease:

[BA BUSA]

My Busa gives out loud rattling sound in 6th when pulling from 3000 to 4000RPM. Isn't that loud in mode B and C or in lower gears. Looks like it gets worse with load. The bike is 350miles old and all stock. My mechanic and I think its coming from somewhere behind the engine or front sprocket area. It really resembles knocking or predetonation. I even swap back to standard exhaust system. Still the same. No difference as compared to the slip ons.

Anyone has any ideas or have seen this before? Is this normal? lease:

You are lugging the engine down shift and treat her right

[Mr Bogus]

WOT in high gear at 3K? ouch... really should not hurt it but sure is not good for it..

you could beat the crank out of a motor like that...

[speetdemon]

You are lugging the engine down shift and treat her right

At 3k RPM, the bike runs about 50-55mph. So, its cruising speed on 6th gear. Its just that the noise will start to appear when u start to accelerate from there. Heard the same noise right there?

[BA BUSA]

You should keep the rpm's higher when breaking in a new engine

[BA BUSA]

If the engine is lugging and pinging at the lower rpm's...downshift and keep the rpm's above 4000

[rotts4u]

Try a tank of higher octane fuel and see if it goes away. If you are already using 93 there is not much else you can do except add booster or get some race gas.

I would make sure you dont do that any more than possible. As stated it can damage the crank or bearings or worse.

[speetdemon]

I got a full tank of ron 97 gas in it and has been on it for the last 50mi. No difference. Anyone can verify with their bike, if this is normal?lease:

[BA BUSA]

I got a full tank of ron 97 gas in it and has been on it for the last 50mi. No difference. Anyone can verify with their bike, if this is normal?lease:

I run 91, but I don't cruise around a 3k in SIXTH gear

@50-55 mph try 4th gear and see if it does it

[EarlyBird]

Break in the motor, but dont lug it! Rpm's are your friend! Try another fuel station too!

[Evil_keeps_me_young]

overloading the engine, it goes 90mph in first gear you really have no reason to get into 6th unless you going relatively fast. keep it in the first three gears when going under 100mph...

[speetdemon]

overloading the engine, it goes 90mph in first gear you really have no reason to get into 6th unless you going relatively fast. keep it in the first three gears when going under 100mph...

So, u keep it on 3rd gear cruising the hiway at 65? I dont need this advise. I need real help here.lease:

[BA BUSA]

When cruising in 6th @ 65...roll on the throttle...don't hammer it

The bike will do 85 in first

[dadofthree]

Nuff said, grab and twist

[BA BUSA]

So, u keep it on 3rd gear cruising the hiway at 65? I dont need this advise. I need real help here.lease:

Hope this helps

Amazon.com: Motorcycling For Dummies (For Dummies (Sports & Hobbies)): Bill Kresnak: Books

[EarlyBird]

[Evil_keeps_me_young]

also, if you leave it in lower gears at speed you will avoid the hand numbing vibrations that is common on the gen 2... and yes 65 mph in third is fine try it...

[Billy Busa]

3k in 6th gear, you would think the engine would stall. I usally shift from 1st to 2nd at 3k.
The best way to shift is listen and hear the revs of the engine when shifting. Your busa will talk back to you if you just shift her right, honest.
You really ought to have better communication with you busa, if you abuse her she will leave you.

[Busaholic Anonymous]

3k, 6th gear???

[speetdemon]

It actually rattles all the way to 8k and it does it in all gears. 3-4k at 6th is where it does loudest. So, I just seeking help to understand this abnormality so that I can correct it. ???