So I was riding my bike today and I noticed that around 6000rpm, my bike makes a whining sound. It has never done it before so I was curious if anyone knows whats going on with my bike.
How old is the chain? Check the condition of the front sprocket.
Michael
chain is newish I just bought it at the beginning of the season. I will check the front sprocket in the morning
When it's safe to do so, use your left hand and apply a decent amount of pressure along the edges of the gas tank.
Mine made a whining noise for a couple days and it turned out to be just some tank vibration.
Have you adjusted the chain recently? Over-tightening will get you a whining sound. Just a thought.
First thing to do is find out if the sound is coming from the engine or something else. If it's the engine it'll make that sound in neutral. Narrowing it down to the final drive or gearbox can be more challenging. How many miles? Know the bike's history? Was it beaten or treated nice? When this bike gets halfway decent treatment it almost never breaks. Use that knowledge and go from there.
I tend to think it's not the engine because if there's something wrong there it'll usually make noise before six grand. I think the others are onto the likely problem. Rule out the chain and/or chain tension. Make sure there's a little slack in the chain in every spot by turning the wheel several inches at a time and check tension as you turn it. If there's a lot of slack in one area and none in another it's time for a new chain. If the sprocket teeth are getting pointy it's time for new sprockets too. The top of each tooth should be blunt, not pointy. You want to get to the bottom of this quickly because riding with a bad chain is dangerous. Best of luck to you.