Today's Message Index:
----------------------
1. 03:19 AM - Re: Kolb 1986 Twinstar w Rotax 503 (Denny Rowe)
2. 03:39 AM - Re: Bing Enrichment Piston (Denny Rowe)
3. 04:05 AM - Re: Kolb 1986 Twinstar w Rotax 503 (bryan green)
4. 05:12 AM - Re: Bing Enrichment Piston - spring (Beauford)
5. 06:06 AM - Re: Bing Enrichment Piston (JIM HEFNER)
6. 06:24 AM - Rotax Trade-In (David Nagy)
7. 08:42 AM - Re: Bing Enrichment Piston (Ralph)
8. 08:59 AM - Ultralight Flying Magazine (James Tripp)
Message 1
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| Subject: | Re: Kolb 1986 Twinstar w Rotax 503 |
--> Kolb-List message posted by: "Denny Rowe" <rowedl@highstream.net>
>
> When I heard of this a couple weeks ago, I thought they were taking only
> Hirth & 2si engines on trade- not Rotaxes. Am I wrong?
>
> Howard Shackleford
> FS II
> SC
>
Yeah Howard, they are also taking older Rotax aircraft engines.
The serial number has to be for an aircraft engine and I also think you need
to include certain accessories.
Check their websight for details.
Denny Rowe
Message 2
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| Subject: | Re: Bing Enrichment Piston |
--> Kolb-List message posted by: "Denny Rowe" <rowedl@highstream.net>
Possum,
I totally agree with your statement below, I also have been flying on and
off since 1982 and also have been riding dirt bikes a lot longer with
similar carbs and never had an enricher piston seal fail or seen anyone
else who had. Until now.
So now you can bet your rear end that I'll be checking my enrichers out real
good before I get back to flying again, but I won"t be adding the primer
systems, nothing against primers, I just chose enrichers and only need one
or the other.
Keep it simple as possible.
Denny Rowe,
Mk-3, 2SI 690L-70, Sport Parasol, old 503SI
do not archive
Subject: Re: Kolb-List: Bing Enrichment Piston
> --> Kolb-List message posted by: possums <possums@mindspring.com>
>
> OK ... me and Ralph been flyin these things for a while ... since
> 1983 for both of us ...I guess.
> BTW I like talking to somebody that's been watching these things
> evolve from bicycles with wings.
> I've never had a primer, Ralph's never used the "coke" that comes
> with the engine.
> Both of us have had unbelievable success in starting our respective
> engines on the first pull.
> Hell ....I'll bet we could blow on the prop real hard and it would
> start, right Ralph??
> Belive it or not---I can "hand prop" my 503 DC using the method
> discussed before.
> And I'm sure Ralph can do the same -
> Now .....you "yearlings" ( that would be those of you that have been
> flying for a year or so and
> ain't dead yet) have to keep in mind that neither of us have had
> experience in "both" areas.
> So nobody is dead wrong on anything. BOTH OF US are probably right
> on. That can happen.
> That's what's good about this list, if you don't let it get into the
> "I'm right and your wrong" debate.
> Just good clean fun - most of the time.
Message 3
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| Subject: | Re: Kolb 1986 Twinstar w Rotax 503 |
--> Kolb-List message posted by: bryan green <lgreen1@sc.rr.com>
You gotta check the serial # Skack and it must have a gear box.
Bryan Green Elgin SC
Do not archive
Denny Rowe wrote:
>--> Kolb-List message posted by: "Denny Rowe" <rowedl@highstream.net>
>
>
>
>
>>When I heard of this a couple weeks ago, I thought they were taking only
>>Hirth & 2si engines on trade- not Rotaxes. Am I wrong?
>>
>>Howard Shackleford
>>FS II
>>SC
>>
>>
>>
>Yeah Howard, they are also taking older Rotax aircraft engines.
>The serial number has to be for an aircraft engine and I also think you need
>to include certain accessories.
>Check their websight for details.
>Denny Rowe
>
>
>
>
Message 4
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| Subject: | Re: Bing Enrichment Piston - spring |
--> Kolb-List message posted by: "Beauford" <beauford@tampabay.rr.com>
Brother Possum...
IMHO, the line you sent below contains the smoking Rotax....The spring
pushing down on that piston is strong indeed...
I think it is the very strength of that spring, pressing that rubber insert
down against the metal valve seat which causes the rubber to retreat up into
the body of the piston over time...four years in my case. The famous
2-cycle vibration probably compounds the impact of the seat as it deforms
the rubber...
It all adds up to a "must inspect" item for me at least annually, and
possibly even more frequently than that.
I intend to have two canaries in this little coal mine... a change in plug
color or deposits, and an unexplained increase in fuel burn over time. As I
think back, both birds died, but 'ol Beauford just kept diggin' coal.
Beauford
FF #076
----- Original Message -----
> --> Kolb-List message posted by: possums <possums@mindspring.com>
>
> At 09:06 AM 8/18/2005, you wrote:>>
There was nothing said about the enrichment (choke) piston. The
> springs that push it down or shut off the
> fuel are very strong. I don't think that would be a problem unless
> your cables wouldn't let it seat.
> >
>
>
>
Message 5
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| Subject: | Re: Bing Enrichment Piston |
--> Kolb-List message posted by: "JIM HEFNER" <hefner_jim@msn.com>
Well said and right-on on all points Possums. Both methods work well and rarely
have problems like Beauford experienced (thank God!), so whatever works well,
stick with it! That is indeed what's good about this list.... people have options
based on lots of experience.
Thanks,
Jim
Tucson, AZ
FF#022 447
DO NOT ARCHIVE
Time: 11:24:43 PM PST US
From: possums <possums@mindspring.com<mailto:possums@mindspring.com>>
Subject: Re: Kolb-List: Bing Enrichment Piston
--> Kolb-List message posted by: possums <possums@mindspring.com<mailto:possums@mindspring.com>>
OK ... me and Ralph been flyin these things for a while ... since
1983 for both of us ...I guess.
BTW I like talking to somebody that's been watching these things
evolve from bicycles with wings.
I've never had a primer, Ralph's never used the "coke" that comes
with the engine.
Both of us have had unbelievable success in starting our respective
engines on the first pull.
So nobody is dead wrong on anything. BOTH OF US are probably right
on. That can happen.
That's what's good about this list, if you don't let it get into the
"I'm right and your wrong" debate.
Just good clean fun - most of the time.
Message 6
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--> Kolb-List message posted by: David Nagy <dcnagy@gmail.com>
To quote from August 2005 EAA Sport Pilot Magazine, "US service centers are
now offering a limited time trade in program for all qualified Rotax,Hirth
and 2SI engines with gearboxes. Qualifying engines can be traded for new
Rotax 503 or 582 engines with either B ,C or E gearboxes." Offer ends Aug
31,2005.
I called LEAF at 1 262 763 4087 and they would sell the 503 DCDI with B
box(w/o Electric start) for around $3500 with the trade in.
Message 7
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| Subject: | Re: Bing Enrichment Piston |
--> Kolb-List message posted by: "Ralph" <ul15rhb@juno.com>
I agree with 'ol Possum, whatever works for you is the way to go. My first winter
fly'in this thing took 35 pulls on the starter rope to get it going. After
setting it up on the frozen lake and not able to get the thing started was when
I decide to get the primer pump. Then I realized that rubber choke washer could
cause problems opening and closing on every flight, or inadvertently leaving
it open a little, so I didn't miss having the choke.
Ralph, Original Firestar, 18 years flying it
-- possums wrote:
--> Kolb-List message posted by: possums
OK ... me and Ralph been flyin these things for a while ... since
1983 for both of us ...I guess.
BTW I like talking to somebody that's been watching these things
evolve from bicycles with wings.
I've never had a primer, Ralph's never used the "coke" that comes
with the engine.
Both of us have had unbelievable success in starting our respective
engines on the first pull.
Hell ....I'll bet we could blow on the prop real hard and it would
start, right Ralph??
Belive it or not---I can "hand prop" my 503 DC using the method
discussed before.
And I'm sure Ralph can do the same -
Now .....you "yearlings" ( that would be those of you that have been
flying for a year or so and
ain't dead yet) have to keep in mind that neither of us have had
experience in "both" areas.
So nobody is dead wrong on anything. BOTH OF US are probably right
on. That can happen.
That's what's good about this list, if you don't let it get into the
"I'm right and your wrong" debate.
Just good clean fun - most of the time.
-------------------------
>I saw this post. The amount of air that is leaked into the carb, due
>to a faulty primer, does not amount to much. Look at the size of the
>primer nipple in the carb. Now compare that with the size of the air
>cleaner. The primer on mine is fed into a nipple on the side of the
>intake manifold, so if there was a leaking problem, it would be more
>severe than one fed into the carburetor body. By the way, always
>cable tie the fuel line around the nipple (I'm using cable ties now
>instead of those plastic rachet clamps. They work so much better
>with no leaking).
>The primer does not leak raw fuel into the carb, whereas a faulty
>enrichner can -snip- I have not used the choke (enrichner) in years
>and have not had a carbon problem. I did have the usual carbon
>problem that everyone else has when I used the choke for starting it.
>Less carbon buildup, in a 2-stroke, means longer engine life and
>reliability. I prefer it this way.
>Ralph, Original Firestar, 18 years flying it
----------------------------------------------------
Try taking off the capped nipple on the carb and see what happens.
-----------------------------------------------------
That part (enrichment choke piston) is a "One piece" cylinder with a
"rubber bottom".......I can't believe that it
is defective very often. It either works or it doesn't - "Except for
yours, Beauford" . Both mine still look the same after 650 hrs.
I've got two of them so I guess that would equate to 1300 hours using
the recent thread of the 2 engines vs. 1 engine theory.
I rebuilt both my carburetors about 14 months ago and replaced
"everything" that was indicated in the rebuild.
There was nothing said about the enrichment (choke) piston. The
springs that push it down or shut off the
fuel are very strong. I don't think that would be a problem unless
your cables wouldn't let it seat.
I agree with 'ol Possum, whatever works for you is the way to go. My first winter
fly'in this thing took 35 pulls on the starter rope to get it going. After
setting it up on the frozen lake and not able to get the thing startedwas when
I decide to get the primer pump. Then I realized that rubber choke washer could
cause problems opening and closing on every flight, or inadvertently leaving
it open a little, so I didn't misshavingthe choke.
Ralph, Original Firestar, 18 years flying it
--possums<POSSUMS@MINDSPRING.COM>wrote:
--Kolb-Listmessagepostedby:possums<POSSUMS@MINDSPRING.COM>
OK...meandRalphbeenflyinthesethingsforawhile...since
1983forbothofus...Iguess.
BTWIliketalkingtosomebodythat'sbeenwatchingthesethings
evolvefrombicycleswithwings.
I'veneverhadaprimer,Ralph'sneverusedthe"coke"thatcomes
withtheengine.
Bothofushavehadunbelievablesuccessinstartingourrespective
enginesonthefirstpull.
Hell....I'llbetwe 
;couldblowontheproprealhardanditwould
start,rightRalph??
Beliveitornot---Ican"handprop"my503DCusingthemethod
discussedbefore.
AndI'msureRalphcandothesame-
Now.....you"yearlings"(thatwouldbethoseofyouthathavebeen
flyingforayearorsoand
ain'tdeadyet)havetokeepinmindthatneitherofushavehad
experiencein"both"areas.
Sonobodyisdeadwrongonanything.BOTHOFUSareprobablyright
on.Thatcanhappen.
That'swhat'sgoodaboutthis&
nbsp;list,ifyoudon'tletitgetintothe
"I'mrightandyourwrong"debate.
Justgoodcleanfun-mostofthetime.
-------------------------
Isawthispost.Theamountofairthatisleakedintothecarb,due
toafaultyprimer,doesnotamounttomuch.Lookatthesizeofthe
primernippleinthecarb.Nowcomparethatwiththesizeoftheair
cleaner.Theprimeronmineisfedintoanippleonthesideofthe
intakemanifold,soiftherewasaleakingproblem,itwould&
nbsp;bemore
severethanonefedintothecarburetorbody.Bytheway,always
cabletiethefuellinearoundthenipple(I'musingcabletiesnow
insteadofthoseplasticrachetclamps.Theyworksomuchbetter
withnoleaking).
Theprimerdoesnotleakrawfuelintothecarb,whereasafaulty
enrichnercan-snip-Ihavenotusedthechoke(enrichner)inyears
andhavenothadacarbonproblem.Ididhavetheusualcarbon
problemthateveryoneelsehaswhenIusedthechokefor&nbs
p;startingit.
Lesscarbonbuildup,ina2-stroke,meanslongerenginelifeand
reliability.Ipreferitthisway.
Ralph,OriginalFirestar,18yearsflyingit
----------------------------------------------------
Trytakingoffthecappednippleonthecarbandseewhathappens.
-----------------------------------------------------
Thatpart(enrichmentchokepiston)isa"Onepiece"cylinderwitha
"rubberbottom".......Ican'tbelievethatit
isdefectiveveryoften.Iteitherworksoritdoesn't-"Exceptfor
yours,Beauford".Bothminestilllookthesameaft
er650hrs.
I'vegottwoofthemsoIguessthatwouldequateto1300hoursusing
therecentthreadofthe2enginesvs.1enginetheory.
Irebuiltbothmycarburetorsabout14monthsagoandreplaced
"everything"thatwasindicatedintherebuild.
Therewasnothingsaidabouttheenrichment(choke)piston.The
springsthatpushitdownorshutoffthe
fuelareverystrong.Idon'tthinkthatwouldbeaproblemunless
yourcableswouldn'tletitseat.
nbsp;-TheKolb-ListEmailForum-
Message 8
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| Subject: | Ultralight Flying Magazine |
--> Kolb-List message posted by: "James Tripp" <jtripp@elmore.rr.com>
I have approximately 100 issues of Ultralight Flying that I need to get rid
of but I really don't want to throw them in the trash. They're a great
resource for anyone who is new to ultralight flying or looking to get into
the sport and want to learn as much as possible before taking the plunge.
I'll give them anyone who is willing to come get them or willing to pay the
UPS charges to ship them.
James Tripp, FSII
Millbrook AL
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