fast500#12

i see on the inital post "when i bought it " was it brand new. if that is the case did you do a proper breakin. if not then you may have messed up your top end real bad. most brand new bikes that arn't broke in are hard to start.

i blew up my bike back in march and saved up money for a port job and bore. i sent my jugs and crank to passion racing in september and got them back around the 15th of this month. i got her all back together friday and started my breakin after a brief struggle with no spark. let me tell you that thing is flat out amazing. it has more power than i had expected but that is definatly a good thing. durring the break in at the 3/4 throttle stage while shifting from 5th to 6th back to 3/4 throttle it pulled the front tires off the ground. bravo jim bravo amazing work. what he told me to set my jetting at was perfect dead on. i highly recomend passion rassing to any one at any time for your engine building needs. now i can't wait to get out against some others bike and layith the smackith down. thanks again jim couldn't be happier.

check your water pump, that is what mine looked like when the water pump shit and since it is a recurring thing you might wanna check it out. my kx 500 did the same shit over and over againg when the impellar broke off the shaft.

my stuff will be here thursday so i will more than likely look you up

how many bikes do you have loco? must be nice

seat cover, grill, polish those wheels, you can always buy the billet engine stuff later. good job looks 1000 times better.

if jim gets my cylinders and crank back to me this week i'll try and find ya. i have to do some breakin though we'll see. i'll let ya know either way i live in fallon so i am all ways down. i'll be in a blue s-10 zr2 with a sand mtn sticker in the back window.

jim can get you 33 pwk's for $310, 35's will be alittle more.

ok so i was miss informed, my bad on trying to pass bad info.

check your impellar, mine was doing the same thing for a little while and then the top end let go. the blades melted off the stock impellar and caused the pistons to melt.

.100 is all she's got

$35 from rickystator

ttt= tremenedously tinny testicals

that is the way that i ment it. i am talking about banshees. i do know that when the stroke changes it canges the displacement. i didn't know that the long rods were off set 2mil from stock rods so most things make sense now. i believe that when you do the 4mil it makes your total displacement some where around 400cc. i could be wrong because changing your bore 1mil or .040 makes it a 390cc. there is no posible way that i would ever take the jugs out to .100 on the first bore, that is just retarded.

duck bill platyapus or how ever it is spelled

i picked up a case of br8es's on ebay for 17 bucks.

AIR LEAK

when you get your new ones keep on top of the rust and cleanlyness looks to me like rust made the weld weak.

if bore doesn't do that much then why is a 250r bored to a 310 so much faster than a stock bore. i under stand that there is more mechanical leverage on a stroker and the displacement does change when you stroke a motorand gives it more hp. but i just say that it must do a considerable amount because all the really fast bikes arn't just 350 strokers. thanks guys this has turned out to be a very informative topic.

i'm just currious why people say that boring you cylinders isn't going to do any thing for you. a larger combustion chamber more fuel = more power. the ounce or or so that the larger pistons (depending on the size you go to) add should be more than off set by the increase in power. a long rod stroker will add just about as much extra mass rotating as say a .020 bore. granted the stoker will build more torque than a bore due to a longer time the piston is pushed by the explosion of the fuel charge. have people forgotten the old saying no replacement for displacement. maybe it just me but i don't see how putting longer rods on your cranks and a spacer under you cylinder is doing any thing more than keeping your stroke the same length because you haven't moved the pin on the crank further away from center of rotation on the crank shaft and lifted your combustion chamber 4 milimeters higher.to truely make it a stoker you need to move the pins further away from the center line of the crank shaft its self thus giving you more distance traveled up and down. once again i don't know it all and i don't know if the stroker cranks are made that way, ( i've never had one to compare to a stock crank), i am not an engine builder i am just curious about how stuff works. feel free to set me straight.

sorry wesw i don't know ya but i can't pass this one up. you is a homo

500 cc 2 stroke dirt bike all day baby. you think a 450 4 stroke is alot of bike you haven't seen shit.

thanks for the reply. what is the lobes?

i saw a picture a while back but cant find it any more. i wanna do mine but don't know how much to take off. info or pics will help.

i have the 916's and they sound sick . the definatly turn heads and i love the way the look. they definatly pull harder than the fattys i had on there before. if you get them, the crease in the right pipe is there to clear the water hose.