Today's Message Index:
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1. 07:14 PM - Re: rough running at 3400 RPM and above (MacDonald Doug)
2. 08:56 PM - Re: Re: rough running at 3400 RPM and above (E. D. Eliot)
Message 1
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| Subject: | Re: rough running at 3400 RPM and above |
An update on my progress. I recieved the carb rebuild kits and have installed
them. Tonight I ran the engine up and it runs a bit better but still not right.
Now I am able to get it up to 3800 before it starts to miss and bog down.
Again, I am still able to get it up to over 4000 RPM by pulling on the enrichener.
I performed a full carb sync on it today. I was able to get the gauge needles
to line up very nicely. While I had the carbs off for cleaning and rebuild, I
pulled the carb sockets off and they are like new, no indications of leaks.
I disconnected the fuel line where it goes into the engine fuel pump and checked
for flow from the electric Facet I am using in lieu of gravity feed. There
is a steady stream of fuel coming form the the line. I pulled the fuel lines
at the carb and ran the Facet again and am getting lots out of the carb fittings
too.
Next, I disconnected the airbox from the carb and had my assistant run the engine
up. I watched the carb slide and at 3800RPM, the slide was about two thirds
to three quarters open. About where I think it should be at that power level.
I'm starting to think this might be an ignition problem. All of the plugs are
new and I gapped them when I installed them but I don't recall now what I gapped
them to. I see in the maintenance manual it says to gap them to 0.027 to 0.031.
I'll have to check that tomorrow and see where they are at.
I don't know guys, any suggestions?
Doug MacDonald
CH-701, North Western Ontario, Canada
Message 2
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| Subject: | Re: rough running at 3400 RPM and above |
No experience with Rotax yet but did solve a few 'automobile engine problem
s' by first checking the resistance of the high tension wires. Once=2C I r
eplaced spark plugs and one of the 'new' ones was bad. God luck - we=3Bll
all learn from watching your progress.
> Date: Wed=2C 14 Jul 2010 19:12:19 -0700
> From: dougsnash@yahoo.com
> Subject: RotaxEngines-List: Re: rough running at 3400 RPM and above
> To: rotaxengines-list@matronics.com
>
com>
>
> An update on my progress. I recieved the carb rebuild kits and have inst
alled them. Tonight I ran the engine up and it runs a bit better but still
not right. Now I am able to get it up to 3800 before it starts to miss an
d bog down. Again=2C I am still able to get it up to over 4000 RPM by pull
ing on the enrichener.
>
> I performed a full carb sync on it today. I was able to get the gauge ne
edles to line up very nicely. While I had the carbs off for cleaning and r
ebuild=2C I pulled the carb sockets off and they are like new=2C no indicat
ions of leaks.
>
> I disconnected the fuel line where it goes into the engine fuel pump and
checked for flow from the electric Facet I am using in lieu of gravity feed
. There is a steady stream of fuel coming form the the line. I pulled the
fuel lines at the carb and ran the Facet again and am getting lots out of
the carb fittings too.
>
> Next=2C I disconnected the airbox from the carb and had my assistant run
the engine up. I watched the carb slide and at 3800RPM=2C the slide was ab
out two thirds to three quarters open. About where I think it should be at
that power level.
>
> I'm starting to think this might be an ignition problem. All of the plug
s are new and I gapped them when I installed them but I don't recall now wh
at I gapped them to. I see in the maintenance manual it says to gap them t
o 0.027 to 0.031. I'll have to check that tomorrow and see where they are
at.
>
> I don't know guys=2C any suggestions?
>
> Doug MacDonald
> CH-701=2C North Western Ontario=2C Canada
>
>
>
>
>
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