SuzukiSavage.com - First ride

Mr 650

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Re: First ride
Reply #15 - 05/17/05 at 17:02:46

Hmmm whir sounds like the backlash prob. Embarrassed

PerrydaSavage wrote on 12/31/69 at 16:00:05:

My Bike "whirr's" somewhat after shutting down with either the kill switch or kick-stand lock-out ... can't remember if it does so or not with the ignition key as I've used it so few times ... left side below the seat is not really an ideal location for shutting off with the key as it requires removing the left hand from the clutch ... and making sure the Bike is in neutral before doing so.
I was in the habit of using the kick stand to shut-off ... that way I wouldn't forget to put it down ... than started using the kill button (as taught a M/C safety Training) ... forgot the stand one time and down the bike went ...
I like the idea of using the key, but as said it's in an awkward location ... will using the kill or sidestand actually cause ignition problems in the long run?

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SilverBlue '01,K&N,Snorklectomy,125mm NOS carb, 1/2 spacer & 155, 'Trapp, NC flyscreen, Suzy GelSeat, Osram H4
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Mr 650

Serious Thumper

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The LS650- Classic
style & 4-valve
engine

Posts: 1389
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Gender: male

Re: First ride
Reply #16 - 05/17/05 at 17:10:28

Let's get the technical terms down 1st.

A fart is not the same as a whir.
The whir is a bad thing, prone to damage the starter gears.

Fart is the small exhaust sound a Savage says sometimes when you shut it off- means "good ridin'!"

Michael wrote on 12/31/69 at 16:00:05:

650 rider:

I hear the same sound. Kind of like a whirling noise. I don't think it happens every time though, or maybe sometimes I tune it out.

cheers

Michael

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SilverBlue '01,K&N,Snorklectomy,125mm NOS carb, 1/2 spacer & 155, 'Trapp, NC flyscreen, Suzy GelSeat, Osram H4
later..putt. Putt, PUtt, PUTT! 8)
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rkutzner Ex Member	Re: First ride Reply #17 - 05/17/05 at 17:26:29 Definitely use the kill switch. It is taught that way in safety courses for the reason mentioned. It CANNOT hurt the bike. If you are then sweeping to the starter button, of course that CAN cause damage afte a while.
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Savage_Rob

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Re: First ride
Reply #18 - 05/17/05 at 20:53:26

I noticed today that mine does it on shutoff also. There is a mild thunk and a whir when using the shutoff switch. I hope that something this common isn't as destructive as some think. It doesn't sound like a grinding or anything... more like something disengaging and spinning down. It could be a backlash I guess, but I'm hoping either it's not or Suzuki has made mods to lessen the impact it could have. Hmmmmmmm.

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diesel

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Re: First ride
Reply #19 - 05/17/05 at 21:27:00

when piston is going up on compression stroke after shutdown without enough inerita to carry over TDC. the built up comperssion will kick it back down. the over running starter clutch will momentarly give the starter motor a slight backwards thrust,thus short whirl sound. when kick start engines kick backwards, when kicker forgets to retard timing. often will break kickers leg. kickers leg now being the starter. electric start multi-cylinder engines will seldom, if ever display any kick back action.

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Paladin. Serious Thumper Offline Hamster Posts: 4929 Sunny Southern California Gender:	Re: First ride Reply #20 - 05/17/05 at 22:34:07 It is normal to hear a sound when shutting down. http://suzukisavage.com/cgi-bin/YaBB.pl?board=RubberSideDown;action=display;n... http://suzukisavage.com/cgi-bin/YaBB.pl?board=RubberSideDown;action=display;n... The sound is described as a "chuff."
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WD

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Re: First ride
Reply #21 - 05/18/05 at 00:08:13

The starter making noise on shutdown on a one lunger is common, and perfectly normal. I checked evry street thumper at work, and to some extent, they all do it.

Can it cause damage, yes, will it, likely not. The sound is very reminiscent of a slightly over-running flathead Ford Bendix starter drive. Takes about 20 years to notice any real damage.
-WD

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Savage_Rob

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Re: First ride
Reply #22 - 05/18/05 at 06:24:35

This is definitely not the "chuff" sound. I'm just wondering why the bendix would catch a backlash. Shouldn't it be disengaged at this point? If not, I can certainly see the efficacy of using decompression to stop the original piston kickback. If this is indeed anything to worry about, I like Greg's idea of incorporating it into the kill switch. I mean, actuate the decompression solenoid when you kill the bike using the same switch. More stuff to make me say "hmmmmm...".

Addendum: I just looked at the microfiche on RonAyers and it looks like the starter is always engaged, which would explain this phenomenon. I guess I'm just too used to seeing starters with a bendix that is engaged by a solenoid/slug arrangement. That said, I wonder what Suzuki expected to happen on shutdown. Or is this just a way to sell replacement parts?

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gazab44 Senior Member 2004 No Login Offline TO OLD TO DIE YOUNG.... Posts: 416 uk Gender:	Re: First ride Reply #23 - 05/19/05 at 04:10:02 I just get the "thunk" noise on shut down and i only ever use the key switch. So reading these posts has reasured me...i'm not alone..thanks
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