SpudFiles

jrrdw wrote:Not a bad bike, if I remember correctly 84 was the 1st year Honda made them water cooled. The only problem I can see is it's a 2 stroke....

Ill take the 2 stroke over the 4 ,, the power band is disgusting,, 6gears ,, it is so fast, my neighbor has a newer 400 ex he cant keep up

jsefcik wrote:Ill take the 2 stroke over the 4 ,, the power band is disgusting,, 6gears ,, it is so fast, my neighbor has a newer 400 ex he cant keep up

Every time I hear the term "power band" I have to laugh. There is no bands in a 2 stroke engine that give it more power. A 2 stroke engine has a range of RPM's in witch it makes the best/most power that it can make. Normally around 7500 to 9000 RPM.

A lot of people are mistaken about that...

On a straight flat out drag race the 400 should gain a immediate leed and hold that leed for at least 1/2 a mile then the 2 stroke should pull ahead once the 400 reaches it's top end simple because the 2 stroke has a much higher top end.

jrrdw

Not sure if you're joking or not - but every engine has a "power band." it's simply the RPM range that it produces peak power efficiency. The reason people usually associate 2 strokes with them, and especially fixed volume exhaust 2 strokes like a dirt bike is because the harmonics in the expansion chamber hit an optimum resonance where the power curve is quite sudden - a feeling felt more frequently in 2 strokes before the power valve was introduced.

I'm guessing you know most of this - but the term is not literal, more so figurative.

Wtf??? Bands drive motor bikes all the time......

mattyzip77 wrote:Wtf??? Bands drive motor bikes all the time......

Hell yea! The Led Zeppelin motor bike out runs the Abba motor bike every dam time....Go figure

mobile chernobyl wrote:Not sure if you're joking or not - but every engine has a "power band." it's simply the RPM range that it produces peak power efficiency. The reason people usually associate 2 strokes with them, and especially fixed volume exhaust 2 strokes like a dirt bike is because the harmonics in the expansion chamber hit an optimum resonance where the power curve is quite sudden - a feeling felt more frequently in 2 strokes before the power valve was introduced.

I'm guessing you know most of this - but the term is not literal, more so figurative.

Isn't that what I said but worded differently....

They do have a power band when you wack the throttle,, the jump of extra power is what I love:)


Any ways I would like to say thanks jrrdw my aluminum piston is complete nd on its way home

Yeah, two strokes are funny beasts, I only work with them on a small scale (chainsaws, brushcutters etc), and when you hit that power band on a 80 odd CC chainsaw, and the saw nearly jumps out of your hands.

Still haven't rode my mate's Kato EXC with a big bore to 330CC, race tuned, but he reckons the power band nearly kicks you off.

jsefcik wrote:They do have a power band

They do, do they, well go to the parts diagrams and look at the list that Honda provides, there are no bands of any kind in your engine.

http://www.petescycle.com/OEMpartfinder.htm

Zeus wrote:Yeah, two strokes are funny beasts, I only work with them on a small scale (chainsaws, brushcutters etc), and when you hit that power band on a 80 odd CC chainsaw, and the saw nearly jumps out of your hands.

Still haven't rode my mate's Kato EXC with a big bore to 330CC, race tuned, but he reckons the power band nearly kicks you off.

it would, my first bike a 2001 honda cr80r, was a beast just like that, but once i put the big bore 125cc with such a small wheel base you had one wheel up all up to 4 gear! it killed 250 without issue! maxed it out on the freeway one night 140 with 5% nitro fuel in it!

Ahaha, Jrrdw, you funny bastard.

Would "the RPM range in which the engine provides the most power" suit more?

Edit: Haha, sounds awesome Crna, those little bikes can do a lot. The same mate scored a Kato 125 for 190 which I'm considering talking him out of, despite the fact that the two people who'll ride it are 5'10" and 6'4", it'll be fun as fuck.

jrrdw wrote:

jsefcik wrote:They do have a power band

They do, do they, well go to the parts diagrams and look at the list that Honda provides, there are no bands of any kind in your engine.

http://www.petescycle.com/OEMpartfinder.htm

not gonna fight over it i know they do ,, that extra jump of power is just amazing!!! anyways im surprised over the reaction i got from my parents when i rolled it into my garage!!!!

Jesse, hate to spoil the joke, but you're talking about the range of RPM that gives you heaps more power. Jrrdw is baiting you by saying there's no physical bands (like a fan belt kinda band) in a 2 stroke.

jsefcik wrote:

jrrdw wrote:

jsefcik wrote:They do have a power band

They do, do they, well go to the parts diagrams and look at the list that Honda provides, there are no bands of any kind in your engine.

http://www.petescycle.com/OEMpartfinder.htm

not gonna fight over it i know they do ,, that extra jump of power is just amazing!!! anyways im surprised over the reaction i got from my parents when i rolled it into my garage!!!!

Sorry Jesse your wrong again... Powerband is only a word, a reference used for a motors Rpm's best performance....kinda like saying when you get in a fight "I beat the shit out of that guy" its a figure of speech....

mattyzip77 wrote:Powerband is only a word, a reference used for a motors Rpm's best performance....kinda like saying when you get in a fight "I beat the crap out of that guy" its a figure of speech....

Correct-a-mundo Arthur Fonzarelli!

Zeus wrote:Jesse, hate to spoil the joke, but you're talking about the range of RPM that gives you heaps more power. Jrrdw is baiting you by saying there's no physical bands (like a fan belt kinda band) in a 2 stroke.

Oh I know what he means,, yes I agree on there is no physical bands