Today's Message Index:
----------------------
1. 04:37 AM - Rotax revised Service Instruction SI-912-020 / SI-914-022 Revision 4 (Carlos Trigo)
2. 07:17 AM - Re: Rotax revised Service Instruction SI-912-020 / SI-914-022 Revision 4 (FLYaDIVE)
3. 09:55 AM - Re: Rotax revised Service Instruction SI-912-020 / SI-914-022 Revision 4 (John Fasching)
4. 11:04 AM - Re: Rough Running 912 (Goodone)
5. 11:19 AM - Re: Rough Running 912 (Roger Lee)
6. 11:26 PM - Re: Re: Rough Running 912 (joeing701@simnet.is)
Message 1
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| Subject: | Rotax revised Service Instruction SI-912-020 / SI-914-022 |
Revision 4
Is everybody aware of the many modifications suggested by this Service
Instruction?
http://www.rotax-owner.com/pdf/SI-912-020-R4.pdf
Carlos
Message 2
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| Subject: | Re: Rotax revised Service Instruction SI-912-020 / |
SI-914-022 Revision 4
OK - Someone HELP!
I write tech reports for a living but this statement is totally confusing:
1.5 COMPLIANCE
NONE - For Information Only.
Then they follow it up with a NOTE:
WARNING - Non-compliance with these instructions could result in engine
damage, personal injury or death!
Come on ROTAX make up your mind!
Ya gots ta under.
Barry
On Sun, Dec 5, 2010 at 7:33 AM, Carlos Trigo <trigo@mail.telepac.pt> wrote:
> trigo@mail.telepac.pt>
>
> Is everybody aware of the many modifications suggested by this Service
> Instruction?
>
> http://www.rotax-owner.com/pdf/SI-912-020-R4.pdf
>
> Carlos
>
>
Message 3
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| Subject: | Re: Rotax revised Service Instruction SI-912-020 / |
SI-914-022 Revision 4
That's the problem with all of Rotax instructions...they're so loaded
with legal CYA that the legalize gets in the way of communicating.
----- Original Message -----
From: FLYaDIVE
To: rotaxengines-list@matronics.com
Sent: Sunday, December 05, 2010 8:13 AM
Subject: Re: RotaxEngines-List: Rotax revised Service Instruction
SI-912-020 / SI-914-022 Revision 4
OK - Someone HELP!
I write tech reports for a living but this statement is totally
confusing:
1.5 COMPLIANCE
NONE - For Information Only.
Then they follow it up with a NOTE:
WARNING - Non-compliance with these instructions could result in
engine damage, personal injury or death!
Come on ROTAX make up your mind!
Ya gots ta under.
Barry
On Sun, Dec 5, 2010 at 7:33 AM, Carlos Trigo <trigo@mail.telepac.pt>
wrote:
<trigo@mail.telepac.pt>
Is everybody aware of the many modifications suggested by this
Service
Instruction?
http://www.rotax-owner.com/pdf/SI-912-020-R4.pdf
Carlos
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Message 4
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| Subject: | Re: Rough Running 912 |
Went flying this past Friday and the rough running 912UL was back in the mid range
(4400-4800rpm) . Not real rough but noticeable to me. I have had this problem
in the past (see beginning of this thread). Note that the rough running occurred
at the same time of year in the past when the air here gets cold (40 F
or below). The engine is in sync. Do you folks think a change in needle to richen
the mixture a bit is the answer?
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=322365#322365
Message 5
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| Subject: | Re: Rough Running 912 |
You said the engine is in sync? So you pneumatically synced the carbs? Mechanical
doesn't really mean a lot. It is only a starting point. There are some people
who do have a slight rough spot down around 4000-4400 when throttling back
in the pattern. That may be normal, but it shouldn't be around the 4600 and above.
What is your mag drop on each ignition and at what rpm are you doing the
mag drop?
If it was a blade out from the others it will usually have a roughness throughout
all rpms. What is your WOT rpm flat and level?
While were are at it, when you sync the carbs pneumatically that means they should
be right on equal vacuum and not just close. If you can get them close them
you can get them right on.
--------
Roger Lee
Tucson, Az.
Light Sport Repairman - Maintenance Rated
Rotax Repair Center
Home 520-574-1080 TRY HOME FIRST
Cell 520-349-7056
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=322367#322367
Message 6
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| Subject: | Re: Rough Running 912 |
Hello Goodone.
This is exactly the same thing my friend has been experiencing on his Kitfox. His
cure was to change the needle jet to the next larger size or from 2,72 to 2.80.
Solved his problem but as Roger Lee has pointed out, this could just be a
part of the problem, but the temps are normal in the mid range after the change.
Hope this helps,
Johann G.
Iceland.
----- Upprunalegt skeyti -----
Fr: "Goodone" <goodone41@verizon.net>
Til: rotaxengines-list@matronics.com
Sent: Sunnudagur, 5. desember, 2010 19:01:03 GMT +00:00 Monrovia
Efni: RotaxEngines-List: Re: Rough Running 912
Went flying this past Friday and the rough running 912UL was back in the mid range
(4400-4800rpm) . Not real rough but noticeable to me. I have had this problem
in the past (see beginning of this thread). Note that the rough running occurred
at the same time of year in the past when the air here gets cold (40 F
or below). The engine is in sync. Do you folks think a change in needle to richen
the mixture a bit is the answer?
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=322365#322365
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