A good place to look for vehicles is the website Ebay. There you can find any kind of vehicle and other products and bet for them. The price of an Honda 250R is about US $3,700.00.
A TRX-250R is a type of vehicle known as an "all terrain vehicle." What this means is the TRX-250R is designed as a lightweight vehicle that can be used to travel across all different terrains.
10w40 will do just fine.
Was built for R12, should be converted to R134a
SAE 10w30 full synthetic.
it really depends on what 250 three wheeler you are talking about Honda makes the big red 250 the 250 x 250 sx and the 250r the the big red goes about 40-45 the 250x and sx go about 50-55 and depending on what kind of modifications are done to the 250R it could go close to 85 mph
15-40 W JASO MA or MA2.
10w-40 ATV or motorcycle oil should be fine.
10w-30 is a general all around good oil and about 1.3-1.5 quarts
Use for example NGK DPR8EIX-9 or NGK DPR8EA-9 spark plugs.
if you are new to motorcycles, start with a Ninja 250R or 500, if you think you can handle it, you can start with a ZX6R
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