Sand jetting?

TRider06 said:

I just removed my oil pump and am jetting the carb right now. I’m going to be riding in really sandy trails (Not sand dunes). But I am jetting on my property (grass, packed dirt), so should I leave it richer(slightly darker plug), for sand or should I tune it till the spark plug is cardboard brown? I have read and heard that the sand puts more load on the engine and it’ll run hotter and should be richer...but that’s on dirt bikes, but I would assume it applies to Blasters or any 2 stroke.

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Larry's Shee said:

Jetting is basically the same. However a four stroke has the advantage of extra strokes to cool the peston, both with incoming charge AND oil splashing on underside of piston. a 2s is ONLY cooled by the incoming charge into crankcase.
As you jet from rich to "perfect" horse power increases as does heat. When you jet from perfect to lean power drops very little, but temperatures SKYROCKET.
Advantage of jetting rich besides the somewhat constant heavy load is that it's a safety zone as the temps decrease this time of year. Depending on how cold of weather you ride you may have to re-jet for colder temps.

It's better to leave a horse or two in the barn than to push all of them home.

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Larry's Shee said:

Bottom line

yes

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