Messages

1

General Two Stroke Talk / 500 thoughts

« on: June 19, 2013, 02:13:03 PM »

sleeving down the kx wouldnt work too well with how the the powervalves are laid out, unless it was a pre 1989 (they have no center flap)

Also the fact that they are nikasil plated out of the factory

2

General Two Stroke Talk / YZ 250 EFI

« on: June 18, 2013, 01:58:44 PM »

Not sure if this has all the functions you need but the price is better http://www.diyautotune.com/catalog/microsquirt-engine-management-system-839-wiring-harness-p-509.html

3

General Two Stroke Talk / 500 thoughts

« on: June 17, 2013, 03:37:35 AM »

ok something has come up
http://www.ebay.com.au/itm/Kawasaki-Kx500-Motor-complete-Kx500af-not-cr500-cr500af-/200933917101?pt=AU_Motorcycle_Parts_Accessories&hash=item2ec89841ad

but im curious as to whether i would have to run the stock pipe(HATE THE LOOK) or could i run a new 250 pipe or something similiar?

I would try for a 89+ k5 engine. lots of discontinued parts for the pre 89. also you'll want to run a modded cr500 pipe and silencer

I made a kx500sf and i gotta say if you plan on riding any tight track you better be in good shape cause it will ware you out in a hurry. Vibration+mandatory death grip= numb wrists

4

General Two Stroke Talk / Brand New CR500

« on: May 31, 2012, 02:25:07 AM »

"48 hp" phsss.. Dont get me started. That bike stock will have more power than any 250 and more power than youll ever need for moto

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General Two Stroke Talk / Heading to Rocky Hill MX this weekend

« on: May 26, 2012, 11:22:58 PM »

Sounded like a blast. I love passing people on my 92 steely, I don't tell them i have a 500 in it of course.. 

6

General Two Stroke Talk / Rode an 80hp CR500 today.

« on: May 18, 2012, 02:53:30 AM »

I'm definitely putting 'ride kick ass 500' on my bucket list 

Its worth writing on the list for sure. If you think 250's are arm stretching fast, your in for a surprise

7

General Two Stroke Talk / Hello!

« on: May 16, 2012, 02:22:48 AM »

Is it doing that Detonate thing? this is 87, i will run 93 this weekend and see the difference

sounds lean on the pilot, try turning your air screw in a bit

8

General Two Stroke Talk / Rode an 80hp CR500 today.

« on: May 12, 2012, 03:19:23 PM »

C'mon guys he could of been running nitrous shot

80hp can happen but its going to need a custom pipe to match its extremely peaking porting profile, among other mods

9

General Two Stroke Talk / KX500 engine rebuild

« on: May 10, 2012, 05:16:12 AM »

Have you checked the piston to bore clearence ?

Only have a caliper and odered a bore gauge off ebay, .01" was what i got

topend is way out of spec, bore looks to be good though

10

General Two Stroke Talk / KX500 engine rebuild

« on: May 09, 2012, 03:49:53 PM »

Got to love Wiseco... this is a topend Eric Gorr sent me + a invoice without my regard *still need to call him*


Old rings


New rings. Feeler gauge doesnt even go that high

11

General Two Stroke Talk / The ugliest CR ever ?

« on: May 08, 2012, 04:36:20 AM »

12

General Two Stroke Talk / KX500 engine rebuild

« on: May 08, 2012, 02:52:34 AM »

Needless to say i wont be dealing with eric again

Just curious which port package you specified;  more low, more high, "mo betta"?
EG did the Mo betta on my 500 and there was a great deal of work done.  I
wonder if there was some mis-communication or something.  I would definitely
call and talk to him about this.

I have never split cases before, but when you do that, do you just line up the gear configuration with the bearings and all that stuff and put it together?

I have a slightly different approach.  Like Marco said, you want to put everything in the left
side case.  I place the case on my homemade engine stand (see picture) and put the main
and countershaft clusters in meshed together.  Then install the shift forks, shift drum and
shift fork shafts in that order.  Then I install the right side case.  This is a test fit to check
that the tranny spins freely and is done before the crankshaft goes in.

Once I make sure the gear clusters are assembled correctly (the reason for the test fit), I take
it all apart and do it again, only this time I start with the crankshaft which I install with an
installation tool that draws it into the crank bearing.


Just another technique to assemble a bottom end.

dogger

I checked the topend port box on the form, and got charged for that service, even is printed "porting work" on my recipe. being a topend job i should be seeing some significant duration changes, how ever this is a stock port config.

Im not trying to bad talk Eric Gorr or anything, but i feel like i got shafted. Im busy with work this week but when i get time ill see what he has to say

13

General Two Stroke Talk / KX500 engine rebuild

« on: May 07, 2012, 09:14:34 PM »

I will be giving him a call later. At this point though I'm not shipping my cylinder out, took long enough to get this far

14

General Two Stroke Talk / KX500 engine rebuild

« on: May 07, 2012, 02:42:43 PM »

Well i made some measurements and the ports havent been touched with tooling, just a little grinding to sharpen the bridges. I'm not impressed at all and at this point it kinda derailed my build, just going to have to run it like it is till i decide to actually get it ported. Needless to say i wont be dealing with eric again

15

General Two Stroke Talk / KX500 engine rebuild

« on: May 07, 2012, 02:53:36 AM »

Got my cylinder back hard to tell if he did any work, but i do notice a few small changes