lighting the flywheel

[gasmask2008]

i have a 85 atc 250r with a 295 big bore kit...what advantages would a lighten flywheel give me??? running 15/39 sprockets, a 38mm carb...

[CHAINSAW]

I had a CR 250 stator and flywheel on my old R (the ESR kit) It made that motor come to life... The differences are huge in throttle response. I used mine mainly for drag racing, and lightened flywheels work great for that use. As for lightening your stock R flywheel.... its not worth the time. The CR one will still be lighter and better. Only downfall is no provision for lights, but ricky stator can hook you up with a stator that does.

[BIG BAD RED]

if you want a realy snappy set up take the whole stator out and only leave your trigger...ill check into how you wire up a total loss system on bikes with no batt...you will only need a small 12v batt that will last you 6hours ish of run time in between charging

[Dirtsquirt]

If I'm not mistaken...our bikes (250rs) already have a total loss system...

No battery or simular storage system=total loss.

And the stator is needed. Only two or so of the coils are dedicated to lighting, the rest go to ignition.


-Dirt

[BIG BAD RED]

WRONG
you only need your trigger coil for ignition on a tls you take out your lighting coils and such..you run a small 12v battery and only have your spark runnign from it..so no night ridding or tail light

im going to look into it now...find out the exact proces

[Dirtsquirt]

It would be pointless to get rid of your stator, even if you could. The stock spark is well above the needs of 99% of riders.

-Dan

[BIG BAD RED]

but it is the drag from the stator that you get rid of..

[ridetrikes250R]

honda spends MILLIONS of dollars in R&D on how to get a bike to perform to its pure BEST, if u take off the stator i would think it would take away the ballance of the engine, i dont know i could be rong but i say do wat iam saving up for, get a 2001 cr250 ignition (flywheel,stator,wireharness,cdi) that right there is about 400 bucks but if u go and get ur stator from ricky its only 390 which i believe iam going to do, its said to give u AMAZING bottom-midrange and improved top-end. but i wouldnt just start taking off parts to free ur engine from the drag. that part could be something you really need.
adam :headbang: :headbang: :headbang:

[CHAINSAW]

Honda may spend millions making something, but aftermarket companies always do one up. PVL ignitions are a perfect example of that.

[BIG BAD RED]

no honda's race teams spend millions on making the bikes perform the best...honda makes the bikes for what the people want..not everyone wants a bike with a uncontrolable powerband

[dunerash]

honda spends MILLIONS of dollars in R&D on how to get a bike to perform to its pure BEST, if u take off the stator i would think it would take away the ballance of the engine, i dont know i could be rong but i say do wat iam saving up for, get a 2001 cr250 ignition (flywheel,stator,wireharness,cdi) that right there is about 400 bucks but if u go and get ur stator from ricky its only 390 which i believe iam going to do, its said to give u AMAZING bottom-midrange and improved top-end. but i wouldnt just start taking off parts to free ur engine from the drag. that part could be something you really need.
Honda may spend millions on R/d for the masses not the guy/gal who is out there dragging or duneing
Ridestrikes 250r_ Im still trying to figure out the AMAZING bot/mid range and improved topend?..LOL
I dont believe A/F companies are one up on factories.. The factories release what they want to the public, or guys quit and go out on their own...way more resources then small companies

[Dirtsquirt]

Originally posted by BIG BAD RED
but it is the drag from the stator that you get rid of..

What drag? LOL

The minimal amount of force to spin a metal object in a magnetic field?

If that is what this was for, money would be better spent lightening the stocker flywheel.

-Dan

[BIG BAD RED]

there is an enourmas amount of drag. look at a yz250 compared to a yz250wr...masive diff in power..

[Mr. Richard]

the reason there is a difference is because the two bikes have totally different applications,,,,,, port timing is way different,,, power delivery is different ever ride a mx bike in tight woods ? DUH!! there is way more difference in motors than a flywheel:rolleyes:

[BIG BAD RED]

no kasey the only diference between the 2 bikes are diff fenders to accomidate the lightes and it has a new flywheel bolted on and a aluminum adapter with a lighting coil integrated into it..the new flywheel has a extra portion with magnets that sticks out about 2 inches farther than stock and it spins instide the adaper/ lighting coils...thats it



*and they splice into the wire harness and a swithc block on the bars.....


they will do the same thing with the yz125wr when they bring it out in the near future

[turbo]

im sorry big bad red, but there is other differences in the two machines, the flywheel is not the only difference......... kasey is right, timing is different, ports are different, cdi is different. if the only difference was the flywheel, you could take the wr, change the flywheel, and it would compete with the yz. sorry but it doesnt.......

[BIG BAD RED]

im talking the 2 stroke are you? the factory does not make the enduro yz250wr it is sub contracted by smaller shops to get done they send a yz250 in the crate and include the parts...

[Dirtsquirt]

The factory did make a WR250, way back in the day along with a 500.

[BIG BAD RED]

your thinkin wrong bikes..im talking about the 2000 model...

[turbo]

well, in that case, you may be correct big bad red, i have not worked on any of the 2000 "yz250wr"s, that being said..... there is not alot of torgue needed to spin the flywheel of a 250r, take the spark plug out, and turn the machine over....... preety easy...... the higher the rpm, the more inertia caused by the counter weights, the easier it becomes, and less power is needed from the piston's power stroke.....

[BIG BAD RED]

your going to need the same amount of power to turn the counterweights at 800rpm as you would 4k since your rotating mass is still the same. even tho the enertia is there you are still increasing the speed

[gasmask2008]

what i did was bought a 95 cr 250 complete ignition system, ordered a ESR adaptor plate.everything cost me $230.97. that beats $499.00 all day long.i shipped my 295 big bore cylinder to Eric Gorr to bore it out, machine the base & head work & rebuild a crank. i should have it tomorrow.so this weekend i will be busy. i also found a company to build a custom inframe drag pipe for my atc 500.i will take the bike to they this weekend.the only thing it will cost between 300 to 400 dollars...but i thing it will be well worth it.

[CHAINSAW]

You did the right thing brotha. I wish someone would of told me when I ordered the ESR kit, they were just going to send me OEM Honda parts with an ESR markup.

[Rex Karz]

Hi Ralph, I have been following this thread and I have a question. Is this trike for drag racing? What kinds of terrain do You ride in GA?

[gasmask2008]

my atc 250r/500 is my drag bike, my 250r is for whatever. we only have long,long dirt roads. no hills or sand dunes...we drag 1/8 of a mile...