Hi Ric,
The shaft of the float may be worn where it is connected to the housing. I had 
similar but not so severe problem. It was worn almost to the half of its 
original diameter. 

Best regards
Gyozo


> 2021. jún. 29. dátummal, 5:56 időpontban Rob Thompson 
> <[email protected]> írta:
> 
> 
> The float needle valve is all metal.... at least it should be.
> Go to this link http://limflug.de/en/support/downloads.php
> and scroll down the "List of Effective Technical Bulletins" and look at "8.2 
> Float Needle Valve"
> 
> regards
> Rob
> 
> Rob Thompson
> 0429 493 828
> 
> 
> 
>> On Tue, Jun 29, 2021 at 1:47 PM Mister Sutton <[email protected]> 
>> wrote:
>> hi all.
>> 
>> through one thing or another the aerodrome that i fly out of has a 
>> 98/avgas shandy  available(up to around 30% avgas).
>> 
>> since running on this stuff i have had a few issues. the most recent 
>> being flooding. (fuel dripping out of air filter after 15 seconds of 
>> cranking..... blurk! not ideal )
>> 
>> after noticing that the odd drop of this fuel on my wing left a yellow 
>> residue i am thinking that maybe as fuel evaporates out of carb bowl it 
>> is leaving this gummy residue on needle and seat in much the same way as 
>> you might find in two stroke engines that are left to sit for lengthy 
>> periods of time with the petrol evaporating and leaving components of 
>> the oil behind.
>> 
>> alternatively  i am wondering, if the needle has a rubberised tip, is 
>> this chemical cocktail affecting the rubber (less ideal.... and a little 
>> bit alarming if this is the case - ie. what else has it affected)
>> 
>> havent had the minutes to properly investigate what is actually going on 
>> as yet.
>> 
>> but in any case a quick google search for carby kits reveals many models 
>> of cd 150. as i am very lazy, does anybody have anything more specific 
>> with regard to model numbers (or even specific part numbers for needle 
>> and seat, diaphragm etc.) close at hand?
>> 
>> cheers all
>> 
>> ric
>> 
>> 
>> 
>> 
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