First Build Propane converted EH035 Robin

[HeadSmess]

the "freezing carb" issue has been bugging me lately...

all i can think of to explain it is...

a brushcutter or blower held at full throttle will rev at full speed! a motorised bicycle struggling up a hill at WOT is still barely above idling speed...

something the carb/mixer just isnt designed for ?

make sense?

i never had the issue if i was able to run at a fairly good rpm...

answers it for me anyway

 

[TWalker]

I used to build motored bikes and I stopped a couple years ago but...

I have 2 Golden Eagle kits just sitting and I had bought the propane conversion kit years ago off Ebay. Yesterday I pulled it all out and started the Honda on propane by just sticking the propane line into the air intake and it ran great!

But..people keep telling propane runs hot: is this true?

Any other factors before I hook it up and run it?

 

[Greybeard]

But..people keep telling propane runs hot: is this true?

It is not true. I worked with several propane converted engines on the Dyno.
A gasoline or alchohol fueled engine will have increased exhaust gas temps when they lean out, and if the exhaust gas temps exceed 1400 degrees the engine is not long for this world.

A propane fueled engine will, like a gas or Alky engine, have low exhaust temps when rich and increase until the A/F ratio is correct, and then (unlike the gas and alky engines) start to fall off again as it goes lean. The end result is that it is nearly impossible for a poor A/F ratio on propane to cause damage. Those racers among us are aware of the distruction of engines that have leaned out under full throttle with other fuels.

 

[dnilosek]

Check out the for sale section, I'm selling my propane powered Robin eh035 and staton gearbox.