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A power band isn't an actual part, it's a rev range (or band) at which the frequencies of the pressure waves in the exhaust mainly as well as the intake more or less match up with the piston speed, or frequency, to give optimal cylinder filling and compression. This obviously will be the RPM range at which the engine will provide optimum torque and power if it is relatively high in the rev range.
The most important part in this is the exhaust system and whether it is properly tuned so the power band is actually noticeable or at an accessible RPM range is a whole different story.
For detailed explanation on how the expansion chamber works visit http://www.motorcycle.com/how-to/how-twostroke-expansion-chambers-work-and-why-you-should-care-3423.html
or get the book on 2 stroke engines by Prof. Gordon Blaire
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How do you give a dirt bike more power?
For a 2-stroke dirt bike all you have to do is, buy a taller cylinder, and buy a longer crankshaft.
How do you know when to shift on a dirt bike?
Depends if its 2 stroke or 4 stroke. A 2 stroke bike you can tell by the RPMS which they will be real high which your bike will be very loud. Also if you have a 4 stroke bike you can shift anytime just 4 stroke bikes have torque all the time. so it really depends if your racing just cruising or whatever it all depends on what you r doing.
How do you know if your Orion dirt bike is a 2 stroke or a 4 stroke?
All of the Orion bikes use a 4 stroke engine.
What as difference in crf150f and crf150r?
The CRF150F is a trail bike, soft suspension, not as much power as the r, air cooled engine. The CR150R is the motorcross version, more power (21 hp), water cooled, taller suspension, less low end power, you have to keep it at high rpm's to get all the power. They are quite different.
What is the fastest 4 stroke 125cc dirt bike?
None, they all suck.
Can you put a power band in a 4 stroke dirt bike?
All fuel powered engines have a power band. The power band simply refers to the rpm range that the engine makes the most power. Four strokes usually have a wider power band than two strokes.
What bike is more powerful 4 stroke or 2 stroke?
Really depends on what kind of power you want. a 2-stroke will tear through it's gears faster and overall accelerate faster. 2-stokes have a wider, harder-hitting powerband where the power is mostly at high rpms. a 4-stroke has the low end power- no clutch wheelies, tearing the bead off the tire..so which is more powerful? all depends on when you want the power. 4-strokes low speed, 2-strokes mid-high speed
Do power balance bands work?
No! It does not work at all!
Do all road bikes have power bands fitted?
No
How fast does a 250 cc fourwheeler go?
well it all depends on what kind of bike you have 2 stroke or 4 stroke 2 stroke for a 250 100+ depending on gearing a 4 stroke about 70 low 80's since of no power band no your an idiot cr 250s go like 80 85 crf250s do like 65 70 not even
How do you bore out an exhaust on a 49cc pocket bike?
Answerjust take of the whole exhaust inlcluding the head which is the pipe leading to the engine, take that all of. your bike will be loud as maybe even to load but it will definently give your bike more power. DO NOT DO THIS!!!!! especially on a 2 stroke engine! this will bend your rods and possibly ruin your whole engine!!!!
How you make dirt bike from simple bike?
Simple bike ? 10 speed bike? Ok. All you need to start is a torch, big hammer, crescent wrench, welder,some tires w/ nobbies and any 2 stroke engine.
