Maintenance & Technical > KX500 Original
What about 500 vs 250 transmissions?
Arigato:
Hillclimb#42...Keep us posted with what gearing you end up with. What exactly is your set up now?..I'm just curious; I run my bike strictly in the dunes so I have to compromise between max hp and reliability. It sucks pushing your bike in the sand. :mrgreen:
BDI:
I burn 10 gallons pluss In my bike every time I go to the dunes never ever had a reliabilty problem yet. I usually spend A lot of time fixing other peoples poorly maintained stock bikes. I'm not trying to talk crap I'm just trying to be helpfull you can get a lot from the kx500 with a few well placed mod's.hillclimb#42's bike should come out the hole in second no problem with a 14/45 and easily pull that gear all the way up the hill. Now if every one else in that class is running 13/47 your going to hand them their ass on a platter. Then every one Is going to come over looking at your bike wanting to know what you did.Arigato you go to Dumont right have we not ever lined up at the hill? My bike Is pretty distinctive and people do not usually forget racing It. I don't recall your bike but It looks like you just finished making It all pretty, It Look's good I might add.
RELIABILITY IS IN THE HAND'S OF THE BUILDER
Hillclimb#42:
yeah we ride dunes here for fun and gear up. Its alot different riding sand, though. I am not dismissing that it can pull taller gearing, or that I need taller gearing, but If I was ripping sand with no jumps I might even go taller or build for top end. I am targeting bottom and Mid range plus am riding two differnt bikes,, right after each other. I know there is faster bikes out there, even here. I'm trying to get mine to be mine and like you said before be comfortable, of in my case confident. A good wipe out or loop out is hard on strategy and confidence. I have put the 14 back on and am more confident that it is rideable even though I've yet to race with it. The Cr's I race against have a taller final drive so will be taller, if I match sprockets. If I can keep in the gas, I should lite it up by being taller and stronger.
10 gallons is quite a bit of riding in one bike. Our sand dune riding is on 750 to 800 acres and gets old after about 4-5 gallons. We usually find a good jump and hit it till we almost eat it and then cruize to the next one. Hills there have ten foot of vert on top where there is hard pack on top layer. You have to be careful going off the top or you may wind up launchin to the moon. I'll keep what you said in mind about the spacer and V-force reeds. Are V-force the best reeds for 250 also? 250 is currently stock reeds.
Arigato:
BDI, Thanks for the compliments on my bike. I haven't been to Dumont this year. I was out 7 months due to injury. The year before that, I went once and there was no one there to race. We are hitting Coral Pink in a couple of weeks. :mrgreen:
BDI:
we have big rolling dunes that you can really haul butt on and that's ten + gallons In two days when we go we stay the night. I have been going to dumont for years and years so I'm sure we have been to the hill at the same time but that would have been on one of my old bikes. It's funny one year I was out there and their was this guy on a cr500 and I was on my 98cr500 that was bone stock even stock pipe. We lined up at the hill and I blew his doors off three times In a row he comes up to me all mad because he's got a pipe,reeds,porting,head work and god know's what else done to his bike and he paid some one to do It all. I sent him packing with a stock bike, I learned a good lesson that day, just because you spend a lot of money on after market hop up crap does not mean your bike Is going to be faster more important Is having a package that works good together and alot of things don't you can have two different things that on their own make more power but together make less. The reed spacer for example lowers your Primary compression ratio which Is the same as shortening your transfer duration and makes the engine run lazy the engine will not rev as fast or as far It just can't because you do not have the primary compression It takes to suport High rpm horse power, not something I want on my bike. Stewart dyno tested a reed spacer I think he might have thrown It away :lol: :lol: If you want more bottom end and midrange a good place to start Is by having the squish angle on your head recut and cranking your compression up to15:1 by milling It. pore in some vp-c12 and hold on because now its going to come out of the whole pissed off. Now you have the bottom end hit and mid range power you want pluss your bike will rev to the moon because you have good primary compression and yes I think v-force Is the best reed on the market no matter what bike you put It In.
You know on second thought listening to me might get you killed :-o
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