Lets Talk Chain and Sprockets

[Betterbuell]

OK, noticed my bike does not have the WHINE as usual. Sort of like the jet fighter noise on decel. I wonder if swing arm angle has some influence as well ? My bike is track only and I am about to have a good look at at all service areas before next meet . watched the wsbk at Misano a couple of years ago and there was plenty of whine going on there .

[greest_lightnin]

I read this thread twice and am still confused. Guess I gotta read it a couple more times.

I have the AF1 manual and can't seem to find the chain tensioning procedure. Is the AF1 manual the same as EBR's?

Thanks,

Al

[blackhawk]

No whine on decel means one of two things, either the chain is too tight or chain rub has been worn down. The stock chain really stretches a lot. By a lot I mean by amount and frequency. It should be checked after EVERY ride. Also remember it must be checked on top as the idler maintains the tension on the bottom through out the swingarm travel.

100% , check it like tire pressure

[buell-fan]

I have the AF1 manual and can't seem to find the chain tensioning procedure. Is the AF1 manual the same as EBR's?

Thanks,

Al

They are the same. And it may be the same as the dealer service manual as well; those seem non-existant.

[zviadi]

How many links does stock chain?

[Classax]

How many links does stock chain?

116 links stock

[zviadi]

Thanks!
Yesterday, I found that my rear sproket have nothing left. Nearly the following picture:



Well, maybe a little better situation - three millimeters left on the teeth.
As a result, when driving the roar of the chain overshoot on the rear sprocket teeth.
Milleage of stock chain is 19000 km.
Classax was right - the chain tension plays an important role on this motorcycle. Two days ago, she almost pull to 20 mm free play - and here's the result.

[zviadi]

My old sprockets:

[Soarer]

I just spoke with an EBR factory tech and he gave me some clarification on chain tensioning.
#1 the slack should be measured from the top of the flat part of the plastic chain guide (shoe as some refer to it)
#2 it should be tighter that you're used to on your Jap bikes because it is engineered differently
#3 if you are running a 44 tooth sprocket, set the slack to 27mm
#4 check it frequently especially with a new bike as the chain goes through its initial stretch

He told me that on the EBR, the chain is tightest when the swingarm/frame/sprockets are in alignment which is when the bike is at rest with no one on it. As the suspension compresses, the chain slack will increase. This is unlike the Jap bikes I'm used to where they get tighter as the suspension compresses. He said he's got 5k miles on his 1190SX with the original chain and it still looks in excellent condition.

[Nemesis]

Hi guys, im after a new chain and sprocket kit for the 1190rx, i hear the 44 tooth is good to run?
Not looking for cheap weak rubbish due to these things having a knack for wrecking chains...

If anyone could link me in the right direction i'd be greatful!
Im from aus if it makes a difference