Wed Mar 5 09:33:47 1997
- Message No. 473
From: "Seaton, Andy"
Subject: FW: Shooting
Hello Martin, Pierre,
Re bang etc.
I am under the impression that this bang only occurs when Martin drops
the revs for a second and then bangs the throttle. This can cause blow
back the same as if you go along at speed, hit the kill button and then
start the engine whilst still at speed. This will cause a bang as I am
sure many people who have tried this will warrant. If this bang is
happening under normal load then I would agree to check the octane level
of petrol etc. You could borrow my vacuam gauges Martin but I fear they
won't reach you. They are not very expensive. Pierre, you said not too
check the FOUR spark plugs. I was under the impression that @'s were
just that. TWINS !!
A typing error I am sure.
Anyway, have fun....
cheers...
\\\\\\|/////
( @ @ )
( * )
---
------------------oOOo----oOOo------------------
Andy Seaton.
Oooo
oooO ( )
( ) \--/ ) )
( ( (_/
\_)
>----------
>From: Pierre DEBRAS[SMTP:DEBRAS_PIERRE_J@Lilly.com]
>Sent: Wednesday, March 05, 1997 8:09 AM
>To: andy.seaton@gs.com
>Subject: Re: Shooting (XRV-LIST)
>
>Hi Martin Bang,
>
>Bang in the muffler may be cause by what you eat ... So my first advice
>would be: use good quality fuel (major brand ones are always conform to
>specs, other not always).
>
>Bang in the muffler is caused by non-burned fuel going into the exhaust.
>It's definitely not normal on the AT. I would check the engine tune-up
>(air filter, valve clearance, carbs balance ...). This may be due to to
>'lean' or to 'fat' carburation.
>
>But to make things clear, there is no screw or whatever on the carbs
>allowing you to change that (except for idle speed). So lean/fat is always
>the symptom of an other problem: dirty air filter, abnormal air intake,
>(very-) unbalanced carbs ... (*)
>The tip from Andy is empiric but very effective to check air fuel/mixture.
>By the way, you don't need to check the four spark plugs. One per cylinder
>is enough. The inner sparks are very hard to remove.
>
>(*) Well, in fact there is a screw for carbs balance, but you need a
>special equipment (vacuum-meter) to adjust that.
>
>Have a nice ride,
>Pierre
>
>
>
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