--===============3135193946092418386==
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Derek,
I=E2=80=99m not sure the fuel in that location tells you much. With =
some carbs you can see a fuel/air fog standing in the trumpets and this =
can condense and be visible as droplets when you have the engine =
stopped.
Duncan Charlton
Elgin, Texas USA
> On Oct 15, 2016, at 10:51 PM, D V <explore8@outlook.com> wrote:
>=20
> Thanks everyone for the replies. I will inspect the pipe to manifold =
and manifold to head to see if anything is loose or any leaks apparent =
in the morning.
>=20
> I actually went down a main jet 145 to 140 and that seemed like it =
helped some but didn't clear up the issue (which is going leaner; =
opposite of what Greg said).=20
>=20
> It is missing and backfiring when I am full on the gas. I can prevent =
it by easing into the gas.
>=20
> I did notice some gas at my air cleaner to velocity stack connection. =
I wonder if it is a float issue?
>=20
>=20
> Sent from my iPhone
>=20
> On Oct 15, 2016, at 7:35 PM, Greg Blake <gblake58tr3@icloud.com =
>=20
>> Don't know if my other email made it to you. Backfires on =
deceleration can be a lean condition. Have you checked your plugs? =
Maybe something got "adjusted" with the bump.=20
>>=20
>> Sent from my iPhone
>>=20
>> On Oct 15, 2016, at 12:27 PM, D V <explore8@outlook.com =
>>=20
>>>=20
>>>=20
>>> Sent from my iPhone
>>>=20
>>> Begin forwarded message:
>>>=20
>>>> Date: October 15, 2016 at 10:30:51 AM CDT
>>>> Subject: Stutter at 4K rpm
>>>>=20
>>>> Two races ago I went off track and bent my exhaust pipe enough to =
break the welded joint near the muffler. In the interest of time, I cut =
the exhaust at the muffler and secured the pipe to the frame.
>>>>=20
>>>> At the last race, I noticed the car would backfire at deceleration =
which I am not surprised but I also noticed a stutter around 4-5k rpm.=20=
>>>>=20
>>>> At NOLA this weekend it is more pronounced and comes in when =
shifting hard from 3rd to 4th. After 5k, it clears up and pulls =
normally.
>>>>=20
>>>> It doesn't seem to be affected by turns and more related to full =
throttle vs easing into the gas.
>>>>=20
>>>> Backpressure from the loss of muffler or unrelated issues?
>>>>=20
>>>> 1300 spitfire with single Weber 40.
>>>>=20
>>>> Sent from my iPhone
>>> _______________________________________________
>>>=20
>>> http://www.fot-racing.com <http://www.fot-racing.com/>
>>>=20
>>> Donate: http://www.team.net/donate.html =
<http://www.team.net/donate.html>
>>> Archive: http://www.team.net/archive <http://www.team.net/archive>
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>>> Unsubscribe/Manage: =
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<http://autox.team.net/mailman/options/fot/gblake58tr3@icloud.com>
>>>=20
>>>=20
> _______________________________________________
> fot@autox.team.net
>=20
> http://www.fot-racing.com
>=20
> Donate: http://www.team.net/donate.html
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>=20
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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D"">Derek,<div class=3D"">I=E2=80=99m not sure the fuel in that =
location tells you much. With some carbs you can see a fuel/air =
fog standing in the trumpets and this can condense and be visible as =
droplets when you have the engine stopped.</div><div class=3D""><br =
class=3D""><div class=3D"">
<div class=3D"">Duncan Charlton</div><div class=3D"">Elgin, Texas =
USA</div><div class=3D""><br class=3D""></div><br =
class=3D"Apple-interchange-newline">
</div>
<br class=3D""><div><blockquote type=3D"cite" class=3D""><div =
class=3D"">On Oct 15, 2016, at 10:51 PM, D V <<a =
href=3D"mailto:explore8@outlook.com"; =
class=3D"">explore8@outlook.com</a>> wrote:</div><br =
class=3D"Apple-interchange-newline"><div class=3D"">
<meta http-equiv=3D"Content-Type" content=3D"text/html; =
charset=3Dus-ascii" class=3D"">
<div dir=3D"auto" class=3D"">
<div class=3D""><span class=3D""></span></div>
<div class=3D"">
<div class=3D"">Thanks everyone for the replies. I will inspect the pipe =
to manifold and manifold to head to see if anything is loose or any =
leaks apparent in the morning.</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">I actually went down a main jet 145 to 140 and that =
seemed like it helped some but didn't clear up the issue (which is going =
leaner; opposite of what Greg said). </div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">It is missing and backfiring when I am full on the gas. =
I can prevent it by easing into the gas.</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">I did notice some gas at my air cleaner to velocity =
stack connection. I wonder if it is a float issue?</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D""><br class=3D"">
Sent from my iPhone</div>
<div class=3D""><br class=3D"">
On Oct 15, 2016, at 7:35 PM, Greg Blake <<a =
href=3D"mailto:gblake58tr3@icloud.com"; =
class=3D"">gblake58tr3@icloud.com</a>> wrote:<br class=3D"">
<br class=3D"">
</div>
<blockquote type=3D"cite" class=3D"">
<div class=3D"">
<div class=3D"">Don't know if my other email made it to you. Backfires =
on deceleration can be a lean condition. Have you checked your plugs? =
Maybe something got "adjusted" with the bump. <br class=3D"">
<br class=3D"">
Sent from my iPhone</div>
<div class=3D""><br class=3D"">
On Oct 15, 2016, at 12:27 PM, D V <<a =
href=3D"mailto:explore8@outlook.com"; =
class=3D"">explore8@outlook.com</a>> wrote:<br class=3D"">
<br class=3D"">
</div>
<blockquote type=3D"cite" class=3D"">
<div class=3D"">
<div class=3D""><br class=3D"">
<br class=3D"">
Sent from my iPhone</div>
<div class=3D""><br class=3D"">
Begin forwarded message:<br class=3D"">
<br class=3D"">
</div>
<blockquote type=3D"cite" class=3D"">
<div class=3D""><b class=3D"">From:</b> <<a =
href=3D"mailto:explore8@outlook.com"; =
class=3D"">explore8@outlook.com</a>><br class=3D"">
<b class=3D"">Date:</b> October 15, 2016 at 10:30:51 AM CDT<br class=3D"">=
<b class=3D"">To:</b> <<a href=3D"mailto:fot@autox.team.net"; =
class=3D"">fot@autox.team.net</a>><br class=3D"">
<b class=3D"">Subject:</b> <b class=3D"">Stutter at 4K rpm</b><br =
class=3D"">
<br class=3D"">
</div>
</blockquote>
<blockquote type=3D"cite" class=3D"">
<div class=3D""><span class=3D"">Two races ago I went off track and bent =
my exhaust pipe enough to break the welded joint near the muffler. In =
the interest of time, I cut the exhaust at the muffler and secured the =
pipe to the frame.</span><br class=3D"">
<span class=3D""></span><br class=3D"">
<span class=3D"">At the last race, I noticed the car would backfire at =
deceleration which I am not surprised but I also noticed a stutter =
around 4-5k rpm.
</span><br class=3D"">
<span class=3D""></span><br class=3D"">
<span class=3D"">At NOLA this weekend it is more pronounced and comes in =
when shifting hard from 3rd to 4th. After 5k, it clears up and pulls =
normally.</span><br class=3D"">
<span class=3D""></span><br class=3D"">
<span class=3D"">It doesn't seem to be affected by turns and more =
related to full throttle vs easing into the gas.</span><br class=3D"">
<span class=3D""></span><br class=3D"">
<span class=3D"">Backpressure from the loss of muffler or unrelated =
issues?</span><br class=3D"">
<span class=3D""></span><br class=3D"">
<span class=3D"">1300 spitfire with single Weber 40.</span><br class=3D"">=
<span class=3D""></span><br class=3D"">
<span class=3D"">Sent from my iPhone</span></div>
</blockquote>
</div>
</blockquote>
<blockquote type=3D"cite" class=3D"">
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class=3D"">_______________________________________________</span><br =
class=3D"">
<span class=3D""><a href=3D"mailto:fot@autox.team.net"; =
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<span class=3D""></span><br class=3D"">
<span class=3D""><a href=3D"http://www.fot-racing.com/"; =
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<span class=3D"">Donate: <a href=3D"http://www.team.net/donate.html"; =
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</blockquote>
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_______________________________________________<br class=3D""><a =
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