Can't decide on a 2-Stroke or a 4-Stroke Dirt Bike? Pros and Cons

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1. this guy is a fag becuse you had ktm pics
2. Great vid very helpfull
3. this is probably an school project or something
4. You sound like you don't know shit about motors seems like you just looked it up and read it to the camera and buying and selling bike's has nothing to do with working on them but that's cool that your trying to help people decide on getting a 4 or 2.... stroke
5. you never have to really rebuild a 4 stroke.but if your not careful on a 2 stroke like not being careful with revs or not downshiftibg carefully then the motor could blow up
6. CR250R (2stroke) ----------------
   Peak power: 59.01 HP *
   Weight: 213.8 lbs *
   Torque: 37.6 ft/lb
   Power-to-weight ratio:(2.42 lbs/hp)
   
   CRF250 (4stroke) ---------------
   Peak Power: 51.36 HP
   Weight: 228 lbs
   Torque: 35.2 ft.lbs
   Power-to-weight ratio:(4.43 lbs/hp)
   
   Yz250 (2stroke) ---------------
   Peak power: 46.86 HP *
   Weight: 212 lbs *
   Torque: 30.6 ft.lbs
   Power-to-weight ratio:(4.52 lbs/hp)
   
   YZF250R (4stroke) ---------------
   Peak power: 43 HP
   Weight: 221 lbs
   Torque: 20.1 ft.lbs
   Power-to-weight ratio:(5.13 lbs/hp)
   
   MAICO 700 (2stroke) ---------------
   Peak power: 82 HP *
   Weight: 223.4 lbs (dry) *
   Torque: 79.29 Nm
   
   KTM 690 (4stroke) ----------------
   Peak power: 65.7 HP
   Weight: 308.64 lbs (dry)
   Torque: 68 Nm
7. I'm 5'6 and age 14 what bike should I get?
8. just wondering is a 2 stroke cheaper to maintain then a 4 stroke cause I'm wanting a dirt bike just don't no witch 1 is reliable
9. You really had to google the difference between the two engines, it's so simple, intake, compression,power,exhaust and then intake/exhaust, compression/power
10. Awesome video.  Didn't know you needed to add oil to the gas on a 2 stroke bike.
11. It's really what u get grown into
12. In my opinion you are wrong in many points. One of the big ones is the 2 strokes are so much more Pepy. That is false. I had an rm 250 with s fresh too end and everything was setup right and they only have good power in the power band. Whilst my crf 250r has so much punch and all around power in any rpm range.
13. Time to set the record straight on this debate - using math...math doesn't lie. Im using the factory specs to do the math for this comparison;
    Bike: Yamaha YZ250F
    Weight = 231 lbs
    HP = 39
    Power to weight ratio = 0.168 HP per pound
    
    Bike: Yamaha YZ 250 (2-Stroke)
    Weight = 218 lbs
    HP = 49
    Power to weight ratio = 0.224 HP per pound
    
    Bike: Yamaha YZ450F
    Weight = 247lbs
    HP = 56
    Power to weight ratio = 0.226 HP per pound
    
    My YZ250 (2 Stroke)
    Bike: 1998 (yep thats right) YZ 250 (2 Stroke)
    Weight 212 lbs
    HP after engine mods and Fat Pipe = Dyno run showed 59 HP
    Power to weight ratio = 0.279 HP per pound
    
    As you can see, a stock YZ250 (2-stroke) has far greater power to weight ratio then the 250F and almost identical power to weight ratio to 450F. The debate is over. My older YZ 250 has best power to weight ration by far even against the 450F.
    Note: Its easy to make more power over stock with a 2-stroke; It costs many thousands to get any real power gain out of a 4 stroke.
14. are you stupid. 2 stroke engines blow up faster then fourstrokes. because of the mix gas. duh
15. dislike
16. If you aint mixing gas you aint spanking ass
17. 2 strokes are god ! 4 strokes are pussys !
18. Something people don't realize about 2 smokers, is they rarely make more torque than a 4 stroke. (Max potential torque, as in if a 4 stroke were designed specifically for torque and a 2 stroke as well, the 4 stroke would win.) The potential power 2 strokes make is also way less than it "technically", could be. The ports of a 2 stroke ruin everything, it shortens the power stroke drastically (Hence low torque.) which can be improved on with power valves, but never resolved. The manufacturers fix this problem more by increasing the stroke length of 2 strokes and lowering the bore of the cylinder. This also makes more horsepower. That's why 4 strokes can rev to 14 grand and still make a load of torque without putting excessive wear and stress on the piston, connecting rod and crank. While 2 stroke get more wear with flying that extra 20-30mm up and down the cylinder. Don't get nuthurt at me if you already now this stuff. This is just for the people that know little to nothing about motors
19. So u don't have to spend money
20. Just learn to rebuild it yourself