What Size Carb does the Stock 185 use? The upgrade was a Solo 210 at 15hp@6000rpm. These 185s could also make 15hp with a little thought. CR Bump, some Trail Porting, Carb upgrade and turned a higher rpm.

Hi! John. Thanks for the great video's. I'm not in anyway involved with aviation engines but I am trying to revive some very used and abused 50 year old sled engines so I have been going to school on your work. Can the inner section of the Rotax cranks be disassembled to change the inner bearings? I can't seem to find a manual or any information on the process. THANKS

Is there a direction of installation of the pump ?

Where are you located?

The curse of ethanol continues... 🙈 Thanks for continuing to raise awareness of this. 👍

Are the gap always at 20 thousand.

Thanks for the video! I had never tested this myself but looks like you got the same results as I saw elsewhere using the funnel on phase separated fuel.

Thanks John

Going to have to buy one of those funnels. Cheers from Winnipeg.

You know, u find it amazing how an expert or a scientist in sime field always wants to prove the consumer is wrong because we dont understand how something works or we aren't smart enough or whatever? I find it quite the opposite . Im the quy in the field, the persin using the components or equipment in the real world. Engineers and experts never set up test for everyday use. That fuel expert is so eager to prove you wrong when in fact you proved that for your application, you are spot on. Doesn't take a rocket scientist to tell that anything visible to the naked eye in a fuel sample is bad. Ethanol is horrible in fuel. We didn't have near the problems with fuel before thwy started adding crap to it. Id much tather have a settlement bowl on any fuel system to trap the contaminants. Its just common sense. As long as your fuel pickup is above the bottom of the tank you'll never have a problem. I dont want water to be able to be mixed in my fuel period. Its a disaster waiting to happen. One variable he mentioned is very true and adds to the danger of ethanol containing fuel and that is most every batch of fuel is different. Bo exact standards on percentage of ethanol. This is absurd! Of course ethanol fuel was never considered for aviation i guess because any idiot can see it can only be bad long term. I've been a mechanic all my life and a pilot most of my adult life. I deal components all the time that are designed to do one thing in paper in a lab or in a controlled test environment that just dont work so well in the field. Ive always said that engineers and designers should have to get their hands dirty in the field first before they dream up these new ideas. Looks like these problems are just the new norm and we just have to learn to live with them but it sure does make it hard on the technicians working on stuff in the field. Thx for the videos. I always learn something new watching them.

I always use the Mr Funnel. There is a small area at the bottom where liquid remains which is below the filter in the center. I saw you pour the remainder back into the glass jar. It must have contained some of this bottom fluid below the filter. Did you check to see how much liquid was above the filter element?

Thanks for this presentation. If the build-up was severe in the carbs, I'm wondering if it wouldn't be better or more cost effective to just replace them, ( if a shop was charging hourly rates to clean ),. As for fiberglass tanks, for those like me who don't know, is there some kind of tank treatment one could add? A liquid liner/sealer of some kind perhaps? One that's not resin-based or effected by ethanol?

Excellent video presentation. I'm lucky to have an aluminum tank. I sure wish we could buy premium gas in Canada without Ethanol. I am planing on using 100LL and adding Decalin. What is your experience with this use?

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Great 👍 Cheers

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I'm curious Where does this valve steel cable go? Accelerator? I have a 618 engine, but it doesn't go to the valve.

As always, I learned a lot from this video. Thanks for making and uploading it, sir. 👍

Thanks John for your video, And Happy New Year to you and your family, cheers

Hi John. A big thank you for your valuable lessons. Greatly appreciated. Happy new year.

We need to petition the Conservatives to remove ethanol from gasoline, due to the enormous costs related to the damages it is causing. At the very least, premium fuel should be ethanol free.

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Thanks John, as always great content for us. A real pain having to worry about E10 fuels in our aircraft fuel systems. Maybe someday we'll have someone come up with neat fuel for us once again. My 2025 Christmas wish, lol.

Happy new year!! I like always your videos!

I have watched videos of people adding a mist of water in the intake of a car to increase fuel milage. I believe the theory is that the mist of water will turn into flash steam and increase compression. Do you have any thoughts on that?

I sell gas for a living and have for 20 years. We regularly sample and lab test our gas. The color and clarity doesn’t really tell you anything about its quality. It’s different from different refineries. Some will be more yellowish or cloudy than others. The only way to test it for quality is send it to a lab.

Something to consider. There are videos of other you tubers testing the Mr funnel. It works fine to separate pure gas(non ethanol) and water, however when there is ethanol gas with water in phase separation it goes through the funnel. So basically if you use ethanol gas the funnel won’t do anything for you.

Hello. Is it possible to have info on maintenance of challerger belt reduction and adjustment. Regard

Thanks for the time and effort to show us this information. Is this a reason to use 100LL in my 503? I would like your input on using lead scavenger additive and 100LL in a 503 engine. Another video idea maybe?

Awesome part 2. As a brand new Challenger pilot, your videos are absolutely critical for me. I cannot thank you enough for putting your mastery out there for us. I sent you an email about a mystery (to me) white fuel line buildup!

Another helpful video. Thank you John keep up the good work. It is appreciate it.

Project Farm did a video comparing different hose clamps. I'm probably over thinking it, but I've wondered what the best method is for fuel lines on our airplanes. Safety wire; using twisty pliers, or that fancy special tool for tension loops. Air / mosture in fuel system is that dark passenger.

Thanks for sharing the knowledge, very important topic.

I did not know their was a water separator fuel funnel available. I will have to go get one! Cheers from Winnipeg.

Good info. Thank you for your videos.

Another great video. Please keep them coming. They are appreciated. Thank you.

👍great information

What about Nippon Denso. With the stator pickup behind flywheel. You need to move stator to set timing. I figured you would need to use a timing light? Thx.

Great video - thanks!

As always, another great video packed with useful and easy to follow instructions. I hope you know just how much we appreciate the time and effort you put into shooting, narrating, and editing these videos. Thank you so much!,

Can you present the wiring circut between engine and coil. Regard Yves Bouchard

My 503 fan shaft can move fore and aft when the fan is off. Is that normal?

Is it not straight, true and flat from the factory?

Very interesting. Thanks for sharing.

Another interesting watch. I can't believe how out of flat that manifold was. Surely it wouldn't have been that way from the factory? Thanks for uploading sir - keep 'em coming. 👍🙂

Great demo. I'm doing the final wash on a Ford 302. Very helpful. Thanks!

Thanks for doing this video. You have a lot of knowledge and experience. We are fortunate to have you sharing with us. Take care.

Good Video. Question ? How did you change the inner O rings on crank? Can they be stretched that much? THANKS!

Terrible video

WOW you really know your Rotax engines 👍 I just bought a 582 Blue Top and will be taking a lot of interest in all your videos as you explain it so well. It’s like standing with you and getting a master class!many thanks 👌