Not cct, not Balance shaft, what's making that noise?
It did sound a lot louder on the left side of the bike...
Camera mics can play tricks, though...
It sounds to me like your balancer may still be a bit tight though.. sounds like it's whining a fair bit..
Camera mics can play tricks, though...
It sounds to me like your balancer may still be a bit tight though.. sounds like it's whining a fair bit..
Redcoat, & Maxwell's Silver Hammer, MVN and curmudgeon
Joined: Dec 2007
Posts: 11,608
Likes: 5
From: Mud hut, Zululand
You may improve it a lot by balancing your carbs - my camchain was new and the carbs were out of sync and it causes your camchain to whip around all over.
Set the vacuums on the carbs - if it improves things, then you probably need a new camchain tensioner..................
If it doesn't, it may be the main alternator chain - which I think is an engine out job...............I've just done my starter damper and I couldn't see a way of replacing the alternator chain tensioner any other way.
If the noise improves when the bike is warm, probably associated with the camchain....................
Best I can do from here.............
Set the vacuums on the carbs - if it improves things, then you probably need a new camchain tensioner..................
If it doesn't, it may be the main alternator chain - which I think is an engine out job...............I've just done my starter damper and I couldn't see a way of replacing the alternator chain tensioner any other way.
If the noise improves when the bike is warm, probably associated with the camchain....................
Best I can do from here.............
Guest
Posts: n/a
Gee that is a tough one to call ...
At first I though it might be as simple as an exhaust leak?
On the engine headers where they clamp up they can get some weird little ticking happening if one is not quite sealed...?
but after listening a few times to your vid ..hmmmmm
? dunno
As Pete said , we can only guess from here ....
Mine has the original cam chain rattle because om too slack to get onto the change over
and mine don't sound like that ...
If she was mine , I would get her apart and check a few things immediately....rip the cam cover off and take a peek , ...then rip the clutch out and have a good look ... they are relatively easy checks to make, so if I were you I would get stuck into them first and see what you find..
With cam chain rattles , from my personal experience , I have been running her hard with no problems for mths , but if something else is happening in your engine , I would not ignore it .!!
Get onto it and post back up if you like ... we are here to help if we can...
At first I though it might be as simple as an exhaust leak?
On the engine headers where they clamp up they can get some weird little ticking happening if one is not quite sealed...?
but after listening a few times to your vid ..hmmmmm
? dunno As Pete said , we can only guess from here ....
Mine has the original cam chain rattle because om too slack to get onto the change over
and mine don't sound like that ...If she was mine , I would get her apart and check a few things immediately....rip the cam cover off and take a peek , ...then rip the clutch out and have a good look ... they are relatively easy checks to make, so if I were you I would get stuck into them first and see what you find..
With cam chain rattles , from my personal experience , I have been running her hard with no problems for mths , but if something else is happening in your engine , I would not ignore it .!!
Get onto it and post back up if you like ... we are here to help if we can...
Senior Member
Joined: Jun 2007
Posts: 535
Likes: 0
From: Adelaide South Australia
I agree. I think look at the simple things first. Carb balance can play havoc with rattling. I am worried however if what I heard is correct.
I only watched the vid once but it definitely seemed louder towards the bottom of the motor??? If that is the case then most likely to be a pull down & one of the bottom chains. The oil pump chain is a small non tensioned chain. It's possible that is fried or it's sprocket is loose. If after the other checks you still have problems pull the sump off & have a poke around in there. Beware that there is stuff all room. The alternator chain tensioner has a small ratchet pawl on it with very fine teeth. If you push the tensioner & over tighten it you run the risk of stripping the teeth the first time you start the bike. Make sure it it is only tensioned by its spring & no more but it must hold position by it's ratchet teeth. If it is no good that sorry, pull the motor out & split the cases.
Sounds complex but not really. You'll see when & if you get there.
I only watched the vid once but it definitely seemed louder towards the bottom of the motor??? If that is the case then most likely to be a pull down & one of the bottom chains. The oil pump chain is a small non tensioned chain. It's possible that is fried or it's sprocket is loose. If after the other checks you still have problems pull the sump off & have a poke around in there. Beware that there is stuff all room. The alternator chain tensioner has a small ratchet pawl on it with very fine teeth. If you push the tensioner & over tighten it you run the risk of stripping the teeth the first time you start the bike. Make sure it it is only tensioned by its spring & no more but it must hold position by it's ratchet teeth. If it is no good that sorry, pull the motor out & split the cases.
Sounds complex but not really. You'll see when & if you get there.
Member
Joined: Jun 2007
Posts: 35
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From:
It is most definitely the alternator chain tensioner. Sounds just like the cam chain slap. The tensioner is a poor design and the little "ratchet" that rides on a toothed arm tends to shatter... leaving only the tension of the spring to take the slack.
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