BannedCR500Riders.com

Thanks Glenn!

oh, I do ride in winter when its nice enough too.... Vernon boys are spoiled, and don't see much weather colder then -15C, Manitoba and Alberta .... well -15 is nice weather for us... typically its -20 with a good wind chill here, and Manitoba is drifted like a mother. Its real windy there... and co...

Good work!

I wonder how the loudmouth airfilter kit runs on the 2 stroke.
The filter surface area looks like it will be much smaller, more suited for a 4 stroke?

JD sells a jet kit for modified CR500's?

Have you considered a PWK and intellijet?

The PWK is worlds better than the PJ IMO.

well I'm just dumb ass who likes to make more HP when its too cold to ride.... winters are long in Canada.

It beats watching hockey, or reality TV....

I have bought parts from Sean in the past

I am hoping he is being sarcastic
I will have 2 bikes to ride so I will tune and play with 1, and still have the other to ride.
I guess I will play with brass and ride

I'll take the gss cylinder and piston for $400 if the bore is good for that piston. Please send me more pics I will pm my email.
Interested in other wiseco for $50 too.
You take paypal and ship to Calgary?

pm coming

Thought I would mention that I bought some moose carb rebuild kits for the PWK carbs, and they came with brass Idle speed screws, in addition to the new needle valves, jets, needle, and o rings for the carb.

a world better than the bendy stock plastic idle speed screws they come with.

I really kick myself for selling all my old 500 stuff! I had 2 spare motors, manual, jets, enough gaskets and seals to rebuild both, spare heads, pistons, rings c clips, reeds, etc etc.... its becomeing very expensive to accumulate and more difficult to find good deals on the 500 stuff in these part...

Thanks Adam, More great info! so, on the HF is the margin .015 (1985) or .040 (1986) the HF heads are the same chamber as the ML 87-88 heads, with 87 having a margin of .035 and the 88 at .040 later heads with the ML3N casting have a .070 margin and the ML3R is you checked is .080 This HF1 head I go...

I also checked the prox piston for the exhaust port problem Adam brought up, and I found my new 89mm jug exhaust port was 1mm wider than the 91.5mm prox exhaust face. That difference would be even more dramatic if comparing the 91.5 mm piston to a 91.5mm bore job, due to port taper. Good point you b...

ok, well now I know Adam has looked at this topic, but I couldn't find it, and I was not sure if he had measured the squish band dimensions angles, and volume, as well as bowl dimensions, in addition to the total head volume. http://i263.photobucket.com/albums/ii142/dubious01/accessories/CR500%20Mot...

Some of this has been observed by the likes of Sean, Adam and others... some may not, I thought I would share, and hope others will participate with positive input, and logical suggestions or questions. OK, so I have a few carbs laying around the garage.... Left to right>> 97 CR250 keihin PJ38 with ...

Thanks for the heads up on the cool head btw, good info. how close do their squish bands follow the angle, or radius on top of the piston? I was just hoping I could do this with a stock head, as i want a decompressor in the head, I have seen a few cracked cases at the kickstarter , and don't want to...

..... it would still ping momentarily at 1/2 -wfo, and about 3500 rpm, pulling out of corners etc...otherwise I would have kept dropping the main. Pinging at 1/2 throttle pulling out of a corner at low revs has nothing to do with main jet selection. yes thanks Bob, thats why I had a pile of needles...

If cutting the improper squish (most likely cause of the detonation issue) caused too low a compression then you didnt mill the head enough in the beginning. :wink: well, you need to tell eric gore and Honda that.... I followed erics book , using honda's head... the squish angles on the stock head ...

next time I have a variety of cdi boxes, flywheels, carbs, powerjet, and egt on hand... and thanks to this place more knowledge. egt will really help take the guess out of things I think.... Its pretty hard to read plugs accurately with some fuels, and also when there is a very specific rpm, and thr...

yes, I didn't expect to get chased :shock: , normally they never used to bother... I lived on the edge of town and the cops never cared until this day.... I dumped a 198 in it, and c-12 to start safe then pulled timing, and dropped the main gradually, but still ended up at 192. I was in total disbel...

Thanks for the info on the old ones, but I didn't see any dimensions for the new 871MO.... I would do a cast piston, but I intend to cut a window, and open up the intake side of the skirt a little bit...at least on one of these motors. .... personally I haven't ever had any issues with wiseco except...

So, can anyone divulge dimensions, like intake window width and diameter, exhaust face width compared to the old pistons? That would be great information to share. Adam, if you have this info I will buy a couple pistons off of you. Tearing down 2 motors today, deciding what I will need, and putting ...

I can't remember, but doesn't the 91 have the shorter reed cage?
That may be your issue.
In addition, on my 99, I had to use a 10mm "moose" reed cage spacer to get the 99 250 airbox and boot to line up to my 98 motor perfect.

not sure if any of this helps...

yup, Very very cool work!

not sure of pre 93 changes, except the 85,86, 87 changes.
93-01 are the same.

so in essence I personally can not confirm 88-92 changes, 93-01 are same

wow thats a sweet collector!

if you take paypal, I'll take it.
hit me up with a paypal invoice...?
eldubois at telus.net

I can't respond or pay until 2 morrow nite, as I am travelling.