VFR400 - IRRITATING WHINE

V4 · Trackday Trickster Joined: 10 Nov 2004 Karma :

Stupid question maybe but is there anyway to get rid of the high pitch whining sound? I know its the cam driven gears and probably nothing i can do, but must i really resort to fitting my faddy daddy can? Cheers

Leon

MarJay · But it's British! Joined: 15 Sep 2003 Karma :

They all do that sir, its part of their charm.

If you don't like it, you can give the bike to me! Thumbs Up

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British beauty: Triumph Street Triple R; Loony stroker: KR1S; Track fun: GSXR750 L1; Commuter Missile: GSX-S1000F
Remember kids, bikes aren't like lego. You can't easily take a part from one bike and then fit it to another.

Fortuna · World Chat Champion Joined: 29 Oct 2004 Karma :

The old VFR750 used to do it too. If you ever hear them from the pedestrian point of view they sound nice I think. Thumbs Up

Claud 14.7 to 1 · World Chat Champion Joined: 06 May 2004 Karma :

The sound is cool!

When you hear the bike from a distance Cool

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It's one of the best bits about the sound, and those bikes. Nothing sounds the same, other bikes sound kinda boring.

If you get a race can, it will blare out the whine a fair amount, but you can still hear it. Cool

V4 · Trackday Trickster Joined: 10 Nov 2004 Karma :

Yes a race can's going on, i just saw the local zxr400 go past yesterday and it sounded a bit beastly compared to mine.

Its a faddy daddy sraight through can going on, are we talkin silly noise? cheers

Leon

stryker · Brolly Dolly Joined: 30 Aug 2004 Karma :

I know that sounds well, my FZR does it. Kind of got used to it.
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Now what?

V4 · Trackday Trickster Joined: 10 Nov 2004 Karma :

There used to be an fzr ome to where i work, he'd speed up to the pump, fill up, pay, then speed off, noise was insane, no idea what can it was, its just all my neighbours have little bloody kids n i'm always out early and back late, so i'm just trying to get an idea of what i'm facing with a can like a faddy daddy, lol. cheers

LEON

Claud 14.7 to 1 · World Chat Champion Joined: 06 May 2004 Karma :

stryker · Brolly Dolly Joined: 30 Aug 2004 Karma :

Nah, its a gear box whine, like the old VW beetles. Very Happy

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Now what?

Claud 14.7 to 1 · World Chat Champion Joined: 06 May 2004 Karma :

Ah

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hawkeye · Nova Slayer Joined: 02 Dec 2004 Karma :

Its not the gears, the how the gears are made. Every other one up the gear train is two gears stuck together face to face. They're spring loaded against each other so as the gear teeth wear, the springs expand taking up the slack. Hence gears that never wear out Shocked

Think quite a few GP bikes have them (more accurate gear timing). The SP2 has them as well. Thumbs Up

Ducati Desmodici: Gear driven cams, 90deg V4, alternate firing order, 6 speed box, 16 valves, DOHC... Sound like anything else (NC30 Very Happy

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'89 R/W/B NC30
'The car in front is... in my way'

Kickstart · The Oracle Joined: 04 Feb 2002 Karma :

kevo · Cop Seeking Missile Joined: 26 Aug 2002 Karma :

Sometimes people remove the cam quietening gears which released a small amount of extra power, less than 1hp.

That would make it sound louder, perhaps someone has done that to yours.

Find someone with another VFR with a race can and compare the noise.