97 Advice Offered and Advice Needed

Yesterday afternoon in hot damp drizzle two miles into a trail in the
middle of nowhere after a short rest, my '97 would not start. The most
I could get out of it was a few seconds of running on full choke (even
though the engine was still plenty hot), then it would peter out and
die.

Long story short, one of my riding partners who knows nothing about VFRs
but more about carbs than I, did some digging and discovered the "sub
air filter", which had kind of solidified, then disintegrated when
removing it. As soon as that filter was gone, problem solved.
Something to think about if you ever find yourselves in a similar
situation.

Meanwhile, I'm trying to figure out why, if the VFR is very hot, like if
I've been sitting in traffic on a very hot day for a long while or
better still, if the VFR has been in traffic then I pull over for a few
minutes with the engine off and stewing in its own heat, then I decide
to get going again, the engine starts missing at low RPMs. I few twists
of the throttle usually clears it up. New plugs made no difference.
Any thoughts??

-Brad
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How old was the sub-air filter, Brad?

Does anyone know what the purpose of the filter is? Is it a filter for the
carb breather tubes?


On Mon, Jun 9, 2008 at 10:20 AM, Brad Berson
wrote:

>
>
>
> Long story short, one of my riding partners who knows nothing about VFRs
> but more about carbs than I, did some digging and discovered the "sub
> air filter", which had kind of solidified, then disintegrated when
> removing it. As soon as that filter was gone, problem solved.
> Something to think about if you ever find yourselves in a similar
> situation.
>
>
>
> -Brad
> _______________________________________________
> vfr mailing list
> vfr@xxxxxx
> For subscription and delivery options:
> https://lists.cs.wisc.edu/mailman/listinfo/vfr
>

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The sub air filter was the original, surely. A filter for the carb
breather tube (singular) would seem correct. Though that doesn't tell
me much :-). Carbs always seemed to me like black magic.

I'm starting to wonder what other little surprises I'm in for, too.


-----Original Message-----
From: Patrick Shelston [mailto:patrick@xxxxxx]
Sent: Monday, June 09, 2008 10:35 AM
To: Brad Berson
Cc: vfr@xxxxxx
Subject: Re: 97 Advice Offered and Advice Needed


How old was the sub-air filter, Brad?

Does anyone know what the purpose of the filter is? Is it a
filter for the carb breather tubes?




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In a message dated 6/9/08 7:36:05 AM, patrick@xxxxxx writes:


> Does anyone know what the purpose of the filter is?*
>
Or better yet, WHERE it is located?



**************
Get trade secrets for amazing burgers. Watch "Cooking with
Tyler Florence" on AOL Food.
(http://food.aol.com/tyler-florence?video=4?&
NCID=aolfod00030000000002)

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Under the tank on the right side of the bike between the carbs and the
frame spar.


-----Original Message-----
From: vfr-bounces@xxxxxx [mailto:vfr-bounces@xxxxxx]
On Behalf Of ForsaleinFL@xxxxxx
Sent: Monday, June 09, 2008 12:41 PM
Cc: vfr@xxxxxx
Subject: Re: 97 Advice Offered and Advice Needed



In a message dated 6/9/08 7:36:05 AM, patrick@xxxxxx
writes:




Does anyone know what the purpose of the filter is?



Or better yet, WHERE it is located?



**************
Get trade secrets for amazing burgers. Watch "Cooking with Tyler
Florence" on AOL Food.

(http://food.aol.com/tyler-florence?v...00030000000002)


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Wow! I wish I had known about this filter when I had my '97. It was
always somewhat cranky (i.e., long cranking) on cold mornings or when I
came out from a quick stop and attempted to restart a still warm engine.
I'm thinking this sub-air filter may have dated back to the Clinton
administration.

Mark

-----Original Message-----
From: vfr-bounces@xxxxxx [mailto:vfr-bounces@xxxxxx] On Behalf
Of Brad Berson
Sent: Monday, June 09, 2008 9:20 AM
To: vfr@xxxxxx
Subject: 97 Advice Offered and Advice Needed

Yesterday afternoon in hot damp drizzle two miles into a trail in the
middle of nowhere after a short rest, my '97 would not start. The most
I could get out of it was a few seconds of running on full choke (even
though the engine was still plenty hot), then it would peter out and
die.

Long story short, one of my riding partners who knows nothing about VFRs
but more about carbs than I, did some digging and discovered the "sub
air filter", which had kind of solidified, then disintegrated when
removing it. As soon as that filter was gone, problem solved.
Something to think about if you ever find yourselves in a similar
situation.

Meanwhile, I'm trying to figure out why, if the VFR is very hot, like if
I've been sitting in traffic on a very hot day for a long while or
better still, if the VFR has been in traffic then I pull over for a few
minutes with the engine off and stewing in its own heat, then I decide
to get going again, the engine starts missing at low RPMs. I few twists
of the throttle usually clears it up. New plugs made no difference.
Any thoughts??

-Brad
_______________________________________________
vfr mailing list
vfr@xxxxxx
For subscription and delivery options:
https://lists.cs.wisc.edu/mailman/listinfo/vfr


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