Chris,
The clicking sound you hear is the fuel pump. When the bike's warm the fuel
system is still pressured hence, less clicking.
Dave Galusha
#1177
----- Original Message -----
From: Chaja, Christopher <[EMAIL PROTECTED]>
To: V-MAX TECH LIST <[EMAIL PROTECTED]>
Sent: Thursday, April 27, 2000 1:56 PM
Subject: RE: Noise at start up
> Paul - you're right about the sound being the V-Boost. When powered up,
it
> closes the butterflies between the carbs, opening them after 6K rpm.
> My '85 Max's V-Boost has different sounds too depending on how warm/cold
the
> motor is. Sometimes there's a clicking that continues for at least 5
> seconds...
> I've never had it checked professionally, or by any of the list gurus, but
> it's operated this way since I bought the bike. Even after I R&R'd the
> motor, it sounded the same. I checked all operation when reassembling it,
> so I really can't explain the different noises!
> I don't think it affects my V-Boost operation in any way....but you may
have
> a different problem.
>
> It's possible your linkage has bound up somehow. Was your bike stored
> indoors all winter? I used to live in Chicago, and the moisture there
> during the spring/fall is hard on exposed parts, like cables & linkages,
> even in a garage. (luckily my dad had a drive-in basement heated to
68*F!)
> Good luck,
> -CC
> VMOA 1162
>
>
> -----Original Message-----
> From: Segatti, Paul [mailto:[EMAIL PROTECTED]]
>
> I've got a 1999 Max that I picked up at the end of last year. when I
> turn on the ignition there's a noise from what I assume is the V-Boost
> unit. Kind of a stepper motor straining against a fixed stop kind a
> thing. After the winter lay-up, I noticed the noise seems either louder
> and longer or my memory is bad. The question is, is this normal or
> should I get it back to Yamaha? It seems to make more noise when its
> cold. On a warm restart there is little or no noise.
>
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