clunk when turning off! - SV650.org

08-02-06, 11:48 PM

anyone else had a problem with the sv clunking quite loud when you turn it off sometimes? what is it? how can i fix it? how much it cost?
please help!!!

08-02-06, 11:59 PM

Mine does that too! But only when it's cold, it seems.

embee · 09-02-06, 05:35 PM

I may be wrong but this is a possible which I suspect to be the cause.

When you switch off an engine it will spin down under inertia until eventually it reaches a compression stroke which the inertia can't overcome. If it comes to a stop near the top of compression it will "bounce" back a little.

The starter has a roller type clutch in it (usually), so when the engine turns backwards it picks up on the clutch and drives the starter gear train backwards. I suspect this is what gives the clunk.

As I say I'm open to be proven wrong.

If this is the case, then there's nothing to be done, they're all like that sir.

Also it'll be much more likely with a twin than a L4 due to the size of the cyliders (i.e. how strong the bounce "spring" is) relative to the engine friction.

11-02-06, 02:57 AM

cool
cheers for the insight
was worried there might be teeth missing on the starter clutch wheel

11-02-06, 05:52 PM

Oooh. Nice lid sir.
Thats the Bandit, yeah?
How do you find it, weight and comfort wise?

11-02-06, 06:32 PM

Mines always done it... Never really worried about it

11-02-06, 06:46 PM

I used to worry about. It's the first bike that I have ever owned that I can remember doing it.

08-02-06, 11:48 PM	#1
socommk23 Guest Posts: n/a	clunk when turning off! anyone else had a problem with the sv clunking quite loud when you turn it off sometimes? what is it? how can i fix it? how much it cost? please help!!!

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08-02-06, 11:59 PM	#2
thepyrofish Guest Posts: n/a	Mine does that too! But only when it's cold, it seems.

09-02-06, 05:35 PM	#3
embee Member Mega Poster Join Date: Jul 2003 Location: Warwickshire Posts: 2,802	I may be wrong but this is a possible which I suspect to be the cause. When you switch off an engine it will spin down under inertia until eventually it reaches a compression stroke which the inertia can't overcome. If it comes to a stop near the top of compression it will "bounce" back a little. The starter has a roller type clutch in it (usually), so when the engine turns backwards it picks up on the clutch and drives the starter gear train backwards. I suspect this is what gives the clunk. As I say I'm open to be proven wrong. If this is the case, then there's nothing to be done, they're all like that sir. Also it'll be much more likely with a twin than a L4 due to the size of the cyliders (i.e. how strong the bounce "spring" is) relative to the engine friction.

11-02-06, 02:57 AM	#4
socommk23 Guest Posts: n/a	cool cheers for the insight was worried there might be teeth missing on the starter clutch wheel

11-02-06, 05:52 PM	#5
philipMac Guest Posts: n/a	Oooh. Nice lid sir. Thats the Bandit, yeah? How do you find it, weight and comfort wise?

11-02-06, 06:32 PM	#6
Iansv Guest Posts: n/a	Mines always done it... Never really worried about it

11-02-06, 06:46 PM	#7
Stig Guest Posts: n/a	I used to worry about. It's the first bike that I have ever owned that I can remember doing it.