I doubt it very much.
How much is a 150cc,4-stroke dirt bike worth that is in meant condition
0.75 litres
the top speed of a 150cc dirt bike can depend on a lot of things like if its a 2 stroke or a 4 stroke engine what kind of terrain your on and how much you way but the average is about 50-55mph
If your 2 stroke dirt bike starts to smoke really bad that means you have to much oil in the fuel or the wrong kind of oil. Or the pistons, oil rings or cylinders are badly worn.
around $500 to have someone do it and around $200 to $300 to do it yourself
i would say i two stroke because two strokes are much easier to fix, there faster and better.
You really can't, the model hadn't changed much in those years. Just a 50cc four-stroke Yamaha dirt-bike.
Base price for a 2008 RM 85cc was $3099.
I would buy a 2-stroke for rebuilding purposes and ask for engine performance. The 4 strokes are now FI which helps a lot on durability and performance for the current 4 strokes of this age. You can never go wrong with a 2 smoker though. Easy to work on cheaper to rebuild and depending on how much older the bike is you can probably find parts easier also.
You can't get a 450 2 stroke but you can get a 500cc 2 stroke.there is not one made now but there was a 450 cc two stroke dirt bike i know of,the 1974 Husqvarna Desert Master,this was a 450 and from what i read about it,it was a wretched bike.another one is the 1981 Honda CR450 and it was another loser,the CR480 and CR500 was much better.
A dirt or trail bike engine works much like any other internal combustion engine. However, it may be a two stroke engine that reacts more quickly and has more torque. The transmissions on dirt bikes are often geared lower also.