Mike Christiansen

Thanks again David, Ive got the contact for the person I purchased it from, He had it from 2.4 hours till 4.8 when I purchased it. Ive sent him a message to ask if he knows any of the background. Ill message W&W if I don't get anywhere with the previous owner. your insight has been invaluable! Thanks so much!

Thanks David, Im also in NZ, I wonder if our units were imported at a batch given our very close SN's. Small world! Did you buy your unit new? If so can I ask who the dealer was, they might have info on my unit. Ive contacted Herbert about the issue and asked if he has any suggestions of getting an EOS supplied and modified WB37 carburettor. It would make me feel a lot more confident in the unit. Looking forward to a reply so I can get into the air with a bit more power! In the interim ive ordered a K10-WB rebuild kit to see if this will fit and improve things. I would love to hear from Herbert prior to running the engine tho, I dont want things to get lean! Im looking into the PPG Meter https://www.flyhenry.cz/index.php/en/products/ppg-meter-eng Looks like theres a dealer in NZ so I have contacted them. Integration into my Vario would be awesome but that may be stretching the budget! Thanks again, Regards, Mike. (Wellington Club)

Thanks so much for that reply David, this is gold! The document that you link gives me the exact info I need to rebuild my carb and go back to base settings. I have also wondered if belt slip has played into it at all, and the doc you link details how to tighten this. I have read quite a bit of southwestairsports stuff. Very helpful. To my eye it looks to be a WB37 fitted to mine, has a high speed and low speed needle. The high speed never seems to have been locked off per the EOS document however. My engine is SN#375, the parameter was built in 2017,. Can you tell from the SN if the unit was pre or post Sep 2017? Do you by chance know of the modifications EOS do to the WB37? I would like to check these have been done to my carb and might look to purchase a spare carb (original Walbro) and may need to modify it to work. Im not convinced my carb is a genuine walbro, it lacks branding or any model stamps in it. Regarding the lever height, do you know if the original carb from EOS with 1mm lever height had a tang on the diaphragm? This page details different lever heights for either the tang or button membranes. https://www.southwestairsports.com/ppgtechinfo/top80/hrservicenotes/walbrowg8/ml_height-variations.htm Any suggestions on CHT and RPM devices? Im a bit of a data geek, would love to find an Arduino data recorder project or something that can log these values. I think my plan from here is to - Rebuild carb with a fresh kit now I know the model, set pop off and lever height. - Make the fuel system modifications you list above. - Get some form of RPM / EGT gauge / logging so I can quantify improvements. Ive not yet had any help from EOS, ive emailed them twice in the last 2 months but just their generic addresses, I might give Herbert as you say. I want to thank you again so much for your reply, I think you have saved me hours / days of frustrating googling! Fly safe! Mike

Sorry further info, the engine side of the carb bore is 27mm. Also the diaphragm has a tab where it connects to the metering lever. Cheers, Mike

Hi All, I have an EOS 100 engine on a parajet parameter I purchased used. Im having trouble with low power output and want to start by rebuilding the carb however the one on the engine has no markings and does not seem to match any of the carbs on the EOS manuals, either the early one or the Walbro WG8-1. It looks very much like a walbro, possibly a WB32. It has a high speed needle adjustment. Pics on dropbox because I cant work out how to share them otherwise. https://www.dropbox.com/s/h5vap3jkn1ncyrl/IMG_6527.jpeg?dl=0 https://www.dropbox.com/s/lsev759nkhr5lxe/IMG_6526.jpeg?dl=0 https://www.dropbox.com/s/h5vap3jkn1ncyrl/IMG_6527.jpeg?dl=0 https://www.dropbox.com/s/h5vap3jkn1ncyrl/IMG_6527.jpeg?dl=0 I would love to work out which carb this is and to know some needle adjustments to start with. Thanks for any help, Regards, Mike.