Strange Sounds

[SSgt2147]

Can someone please help me out with my bike. I just bought a 99 Busa that has an extended swing arm. What are the best sprockets to use? I hear some hesitation in the engine and sometines it makes the noise like the rear sprocket has some wear or something in in. I dont know how to explain the sound but it is similar to the roar that mud tires make on trucks but its like a womp womp womp sound. would that maybe from a worn output shaft?

 

[twotonevert]

How many miles? Could be the cush drive. I hear good things about supersprox, but oem is always good as well. Welcome to the oRg.

 

[StrtRac3r]

You just want to make sure if its a howling linke swampers on the freeway to check your bearings as well.

 

[StrtRac3r]

And chain condition/lube/tension

 

[SSgt2147]

Thanks for the good info. It was sounding crappy as well in the engine. I bought a manometer and did the throttle bodies and it leveled out a lot. There are lots of things that needs to be done to it. I want to give it a major overhaul. Thanks guys. Any suggestions for the sprockets needed for the extended swingarm? How many teeth are better to lower my rpms? :stoopid:

 

[KvHotDog4]

I would check the bearings, if you replace the cush drives I would recommend the factory. (I had 50,000 miles before replacing mine.) If you are wanting to lower the rpm's I recommend going up one tooth in the front. I did that to mine and I can get up to 54 mpg on the interstate, and it cuts the little vibration at highway speeds down to almost nothing. They say if you are wanting to take off like crazy then go smaller in the front or bigger in the back or do both, however, I was -1 front and +3 rear the only thing I really noticed was my mpg dropped to the 20's the power gain was barely noticable. JMO

 

[StrtRac3r]

The extension won't require a change is size, and if you want to lower your rpm on the high end you would go + front or - rear. And the opposite is true to raise torque but less top end.

Changing the front will have more effect than the rear, so I would just play with the rear till you find one you like... All personal when you have the busa's power.

 

[SSgt2147]

Thanks for the help. I have to take the bike apart and see what I am working with. I may as well change out the shaft while I am changing the sprocket I suppose. I am glad that Hayabusa.org is here.