Newbie needs advice On 1/5 scale buggy

[OldGuy]

Thanks Junkman! I'm sure I will have more questions when I get the beast next week. Till then, be well!

[shaunjohnson]

in the coleman fuel area...
they use either zenoah 23cc engines or a copy on one.
both of these engines use a Walbro WT-644 carby.
these carbs are simple enough and will run a wide range of fuels.
but, the pump diafram inside it will not tolerate anything other than petrol on the stock seals.

there are other types of seals out there that can tolerate coleman fuel, methanol etc but they are a little hard to find.

i used to run a modded 28cc trimmer motor on my 1/4th scale airboat, that engine started out as a 1hp stock, it ended up pumping out over 5 hp from some basic mods and running methanol. i happened to obtain the correct seals from a different carb i had lying about.

now, yes sure, coleman fuel will work in your 1/5th, and it might be better performance wise.
over time the pump diafram and fuel metering diafram will be eaten away by the fuel and will cause much more damage than good!

[OldGuy]

Thanks for the scoop on the Coleman fuel SJ. Not knowing anything about it I sort of assumed that the Coleman fuel was BETTER for the engine and THAT was why people were using it. Now I know better!

What sort of fuel / oil ratio do most folks use? 25:1 as recommended. Do they use a more oil heavy mix to break in the engine? I have a little Merc outboard that required a 25:1 fior break in and then 50:1 after that. I realize that some of these answere may be in the manual, which I don't have yet, so if they are in the manual, feel free to save your typing finges and respond......READ the manual stupid!.............regards, Paul