Ron,
Never thought of that logic. It works. But...Retarded....Is that being
politically
correct? Hmmm.
Keep in mid that your 914 doesn't have the soft start issues of the 912S early
versions (without the soft start ignition or add on box). Don't confuse apples
and oranges.
Keep the battery strong and AvGas or really fresh car gas and the 914 will
start.
If it every doesn't want to start, its the plugs normally. If you get them
wet and cranking voltage drops to 9 or so volts cranking, it won't go.
Follow common sense, adjust the carbs properly, keep clean plugs, fresh gas and
it will start quickly. If it cranks on and on. STOP. Turn off the master,
jump it and allow the ignition circuit timer to reset.
If you let the plugs get dirty or even old or use old car gas, you will more
than
likely have starting issues.
My troubleshooting guide misses the point of being specific about the 914. As
the
kids say "My Bad". I should have included a picture of where I set my throttle
plate after a carb rebuild. If the plate is too far opened or closed it
doesn't like to start either.
I know you know that the 914 fires top plugs on one module and bottom on the
other.
The 914 is a different animal about starting and running smoothly than the
older 912S.
Rarely do I see a 914 ever kick back. It just won't start if the RPM isn't
above
about 250. Heck mine won't start below 300 with old plugs. If you can count
the blades going by, it ain't gonna start in the cold or if the plugs are dirty
or wet. Just stop and get a charge or a good jump, consider changing plugs
at 25 hours. I did not beat this home in my troubleshooting guide either.
"My Bad."
Used plugs can be cleaned but not just brushed off with a plug cleaner. The
problem
is with our anemic spark system and the plugs themselves. The area from
the electrode down the ceramic insulator and up the side wall to the plug
exterior
gets a bit of carbon, or lead and this tends to ground out the electrode
making for poor spark somewhere around 25 hours of pattern flying. I found that
an ultrasonic cleaner and ensuring the plugs are cleaned while in a vertical
position with the solution of detergent or carb cleaner filling the plug recess
fully, will clean out this trapped soot/carbon/lead and renew the plug
sufficiently
for re-use. Time is money, so frankly plugs are cheap. I'm experimenting
with mine to see how long my cleaned plugs work. I'll report more later,
but I figure it takes an hour of ultrasonic cleaning to get them really like
new. Is that worth the $35 for 8 new plugs? We'll see.
Simple Green detergent makes the plugs really bright and shiny, and carb cleaner
works a bit faster and leaves the plug metal a golden tan. Ah choices.
Sorry I didn't clean up my guide better.
Best Regards,
Bud Yerly
-----Original Message-----
From: owner-europa-list-server@matronics.com
<owner-europa-list-server@matronics.com>
On Behalf Of rparigoris
Sent: Saturday, March 20, 2021 3:02 PM
Subject: Europa-List: Re: Two ignitions on Rotax
Hi Group
Thank you for replies.
Rowland, the 914 ignition modules are the same but A is more advanced than B.
I have a separate starter switch, but ignition is keyed with OFF-R-L-BOTH.
I would rather not have to modify switch plate.
I'm going to go with:
R=Retarded=B
L=Less Retarded=A
Ron P.
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