Wed Oct 16 12:35:55 1996 - Message No. 86
From: Michael Dipper

Subject: Re: starting the engine after some days non-driving (fwd)



---------- Forwarded message ----------
Date: Wed, 16 Oct 1996 11:54:23 +0100
From: Harald Zell 
To: Michael Dipper 
Subject: Re: starting the engine after some days non-driving (XRV-LI

Hi everyone,


> I could imagine that pulling the joke (leading to put more fuel in the
> same volume of air) gives some additional fuel in the engine which can
> residy there until the next start, making it a bit easier to get the
> engine running ???
> 
> Can anybody proove that ?
> 
> I'll start experiments with this interesting idea ...
> 


I do not know the exact way the @ carburator works, because I never 
had to unscrew it completely. but there are some facts of the choke 
system that might be similar to that in my car (old VW Golf 1).

If you pull the choke you reduce the amount of air getting into the 
carburator. Therefor there is more fuel in the air (fetter).
Additionally, on the car, the normal gas level (Standgas!) is 
increased a little bit. But if you pull the gas, normally (on the car) 
additional fuel is injected on the top of the throttle valve 
(Beschleunigerpumpe). This is normally used to fill the power gap 
when accelerating. Therefor normally do not play with the gas befor 
starting.

Don't even open the gas a little bit when starting, this is my 
experience.

The starting problem in my opinion is caused by an other thing.
A certain amount of fuel is allways kept in the carburator when you 
stop your engine (Schwimmerkammer). When standing a long time the 
components of the fuel with a low boiling point get lost first. So 
this parts of the fuel which are necessary for the first ignition of 
the cold engine are missing. That would explain that the problem is 
even worth in summer, when the @ is standing at a warm place in the 
sun.

How to solve the problem:

When you know you won`t ride your bike for some days, close both fuel 
switches about 1 km befor you are at home. The engine is then running 
only with the fuel in the carburators. Hopefully engine stops when 
you are at home :-). Keep motor running till it stops by running out 
of fuel.

When you now want to restart it, the carburator will be filled by 
fresh fuel from the fuelpump (don`t forget to reopen the fuel 
switches).

If you forgot to empty the carburator by driving, and you are afraid 
your @ won't start after some days or weeks, you should still have 
the possibility to empty the carburator(s) by opening a srew on the 
bottom. Fuel will run out of a tube on the bottom of the cycle and 
can be refilled to the tank. I dont know where these srews are on my 
@, because i never had to do it. But it was like this on my CX 500 
(guellepumpe) too.

I hope that helps.

best regards

Haraldxxx
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Harald Zell                           Phone : +49 (0)241 1802732
Institut fuer Kunststoffverarbeitung   Fax   : +49 (0)241 1802752
Pontstrasse 49                         E-mail: zell@fawk.ikv.rwth-aachen.de
52062 Aachen
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