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Posted

Anyone have any suggestions on how high of an octane to run in a honda 300 trx ?

previous owner said he ran 93 in it, its been jetted and has a racing exhaust but no further work done was wandering if 93 was ok or should i drop it down ?

Any thoughts / input appreciated !

Posted

ive always ran 91 in my dirt bike and 4 wheeler even in the sand dunes which i hear is harder on motors because more throttle is used. Im not a mechanic whatsoever but 91 or 93 should be ok.

any one else feel free to disagree though, wont hurt my feelings lol

Posted
thanks for the input...........i put 87 in it cuz i just filled up all 4 of my gas cans .........but noticed it did seem to run hotter.

thanks again !

Your motor will run hotter with lower octane fuel, you should stick to premium fuel especially since your motor is air cooled.

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