Full Answer
Should I replace the chain on my F650?
It appears that when most people come round to changing the chain and sprockets on their F650 they usually go for an aftermarket chain such as I did. They are probably a stronger chain but the genuine replacement from BMW is also worthy of consideration.
How to clean the inside of the chain sprocket?
Unhook the old chain from the sprocket. Remove the circlip (or Bolt/Washer if your bike is '97 or newer) from the shaft and simply pull the sprocket off. Remove the O ring inside and discard. You can now give the area a good cleaning. I sprayed WD40 on the surfaces (take care with the bearings) to soften the dirt and simply wiped it clean.
How do I know if my sprocket is bad?
If your sprocket is secured by a circlip (1995-1996): Examine the O-ring behind the sprocket; if it's not PERFECT, replace it. You can get one at a BMW dealer for $1.50 or any hardware store for .39c.
Do I have an O-ring on my sprocket?
If your sprocket is secured by a nut (1997 and onwards), you will not have an O-Ring. While reviewing the Aprilia Pegaso online parts, Flash found a warning that solved the mystery of the O-ring behind the countershaft sprocket (see this image ).
Is it better to change front sprocket or rear sprocket?
In plain english, put a sprocket with more teeth than stock on the rear for better drive, or reduce the rear tooth count for lower engine speed for a given road speed.
Does a big sprocket make you go faster?
A bigger rear sprocket/ smaller front sprocket will give you an increase in acceleration but decrease your top speed. A smaller rear sprocket/bigger front sprocket will reduce you acceleration but increase the top speed.
How do you tell when a sprocket is worn out?
Worn sprocket teeth are clingy. They hold on to the chain longer than needed. Sometimes the chain can even climb the teeth. This interaction will make a lot of noise.
When should I replace my engine sprocket?
0:193:523 Ways to Tell If your Chain and Sprockets are Shot and Need ...YouTubeStart of suggested clipEnd of suggested clipYou can move links forward and back individually. Definitely a sign that you need to swap out yourMoreYou can move links forward and back individually. Definitely a sign that you need to swap out your gear.
What does less teeth on a sprocket do?
A front sprocket with fewer teeth works the chain harder and robs power, as the chain has to curl more to match the smaller diameter.
How do you get more torque with a sprocket?
2:457:15Speed v More Torque: Chain and Sprocket ratios explained - YouTubeYouTubeStart of suggested clipEnd of suggested clipUm which means this is going to have to turn the front cog is going to have to turn four times inMoreUm which means this is going to have to turn the front cog is going to have to turn four times in order for the rear cog to do one revolution.
How long does a sprocket last?
On average, you can expect to replace your chain and sprocket between 20,000 to 30,000 kilometers, less if you ride fast and hard. However, if you spot any damage to your chain or sprocket, it's better to just go and replace the prematurely-worn part right away.
Why do chain sprockets get damaged?
Mostly sprockets are damaged owing to misaligned chains. If you ride an ADV and take it off the road frequently, your chain should always be free from corrosion and well lubricated. Chain tension is super important too so take a look at your instruction manual clearly and adjust the torque.
Can you put a new chain on old sprockets?
Yes, technically they wear between the links and the pins, however the wear causes the overall length of the chain to increase and that increase in length is commonly reffered to as "chain stretch". Yup.
How do you test a chain sprocket life?
Another, much easier way to check for a worn chain is to try to pull the chain away from the rear of the sprocket on the rear wheel. If the chain is worn, you'll reveal about half a tooth of the sprocket. A new chain will wrap around the sprocket snugly and won't pull away.
How often does a motorcycle chain need adjusting?
every 500 milesYou should check and adjust your chain every 500 miles (805 km), and more often for a dirt bike. It's also a great time to look for kinks or rust, and to give your chain a quick cleaning and lubrication, too.
What does changing your sprocket do?
The purpose of changing sprocket sizes is to alter the relationship between engine speed on your tachometer and road speed on your speedometer.
Recommendations for sprocket and chain for a G650GS
Am needing to replace the sprockets and chain on my G650GS and was looking for any recommendations and/or words of advice from the folks here. Not thinking to change the number of teeth or anything like that at this point, but curious about quality upgrades or options that folks have used.
Thanks!
Thanks very much for all your recommendations and info. Have been delayed in dealing with this (Thanksgiving, work), but am following up on these leads.
Introduction
Maintaining your final drive (your chain and sprockets) is important four your safety and a well operating machine. However sooner or later your final drive will become worn in several ways. The sprockets will wear which makes it harder for the chain to "grip", and the chain will over time degrade making it loose.
Changing your Chain and Sprockets
'97 Classics and above, GS/Dakar. 30mm Socket & Wrench (for stubborn counter-shaft nuts you may need an extra long handled wrench to remove the nut)
The Chain Roller FAQ
by Kristian #562 & Haakon #626. Additional comments by Supertech & David H Park #711.
