BannedCR500Riders.com

I have taken as much as .040 off the stock head, fattened the main 2-3 sizes, and ran them like that with a pipe, with excellent results. you will have excellent bottom and mid power.... all on pump fuel I would want to widen 4mm each side at top outer corners, and raise the exhaust port 3mm, as wel...

If the motor was cleaned and ran right after being submerged, it will be ok. ' if they pulled it out of the pond, and let it sit for months, that when he corrosion takes place. a friend knew of an old car that was submerged in a lake for 20 years, when they pulled it out the body was still in very g...

I agree Bob, those prices are retarded. Custom zx14 JE turbo pistons made to my specs are $750 for 4 including $18 each for skirt dry film, and thermal dome coatings. 2 stage process. No rings included CP custom zx14 turbo pistons, $820 for 4. no rings included MTC custom zx14 turbo pistons, $560 fo...

60 pilot is waaay too big. On my big motors, the pilot got only smaller than stock
Not sure what your porting, compression and HP targets are, but ignition timing is also critical to alleviate the mid rpm, full throttle detonation.

vacuum test / leak down !
I am betting the crank seals and bearings are bad...

bump.
I found a dyna ignition cdi for 2001 cr125, with 4 maps switch for $80.
Gonna give that a go.

98-01 CR250
98-01 CR125

These boots are the longest and will work best, although you might still require a reed spacer or rad valve to get the distances and alignment correct.

You will need to fab an adapter plate for the air box

Ryanjohnson86 wrote:I though the satin black was the black ceramic coat?

depends on what manufactureI guess, but I would not use flat black, if it looks like velvet. It will look worn real fast.

The frame I bought has the same damage, and same problem. Poor head stay design. Gregs is good, but Bobs is best for torsional and lateral vibration and flex control. The 450 motor has the head stays on the down tube and on the perimiter tubes. Get one built like Bobs, and your problems will dissape...

got pics of your headstay design? if the headstay is not built right, the motor can vibrate too much in the cradle and fracture the frame above the top frt motor mounts as yours has. I bought a bike with problem and I am having a new headstay design fabbed up. I would guess thats due to too much eng...

slide is worn or needle is bent , maybe dirt in the slide.

I doubt you will get the fcr to run on the 500 at all. don;t waste your time, it was designed for a stronger vacuum signal, half as often, and also has a accelerator pump.

do get your throttle fixed though

More great info! Thanks for sharing Adam!

Glen, I didn't realise it was crank dyno.
Very cool bikes!
I think its also very cool that you still ride, and can only hope I still will when I am your age!

I hope your health is well,

You have my Kudo's and admiration, on many levels

gregrobo wrote:imagine if he looped it would be wearin his asshole for a eye patch go roostmaster

LMFAO thats the funniest thong I heard all week...LOL

dood really ruined my appetite...

I'm just glad the ugly mother fuckers live where you do, and not here!

although its been a very time coming, I applaud any development, especially something as radical as this engine configuration. If only I could get my hands on a jug, pistons, plate and head asap . I got plans.... It involves ice and screws..., oh and I live on a lake thats genereally noisier in wint...

My 250r was counterbalanced, that makes sense. Strengthening the chassis wouldn't be easier? I have heard of guys gusseting everything and still fracturing motor mounts from the uncounterbalanced vibes with a CR500 motor in a atv chasis, other wise many would ahve dumped their suzuki motors for a c...

no, the 4 stroke carb was not designed for a 2 stroke. There are better alternatives that were designed for your 2 stroke, like the pwk and air stryker

https://bannedcr500riders.com/images/auto/2f17f22c19d3acd6fe2dc7efc4007545.jpg Glenn @ GSS sent me this.... "Bob, This is my personal play bike I bought it new in !997 I have a short inseam (only 26" ) so I completly modified this bike in the first few months I had it . The first thing I ...

That carb is nothing like I have ever seen before... a near nonexistant float bowl and fuel pump....

anyone have info to share on this set up?

educate me...

Funny you mention that cause Calvin told me he was building one to go on a quadzilla 500 bottom end in a quad, and I kept thinking ...theres way more cr500 bottom ends available. The CR500 transmission is one fo the most stout, Maybe the quadzilla motor is counterbalanced and this one already had bi...

. Only thing I don't like is the 2 stroke smoke. WTF? Thats the best part! https://bannedcr500riders.com/images/auto/669fa8f6e85d020e750819d4c62d67f8.jpg i dont know if id buy ktms first attempt at a linkage rear end ..this is not their 1st attempt. I heard removing the linkage was a cost saving me...

whats with the fuel line going into the reed block?
dual plugs?

I still can't see how the adapter plate will work on our cases....

suzuki quadzilla bottom end... hmmm Well that is somewhat promising. I have been on the phone with CPI several times over the last few months inquiring about "when" this will happen and it will become a production item. Did they send you this pic? have you got more info Bob? I am wondering...