BannedCR500Riders.com

I did a seach but got nothing, not sure I'm using the search function correctly. What is the best method for making the gen 3 125 airbox mate to the late model 500 carb? thanks

Update.
Reading the old threads of the gen 3 125's it seems that two boots were used. 2000 250 and a stock gen 3 125.

Here is what my plan is:
I am going to order a new carb boot (since the rubber is soft and has not taken a set), clamp the carb in (with shock removed) apply some heat to both.
If that doesn't work, I will hack up the airbox to make the 00 250 boot fit properly and apply heat.

click below for a short vid of my airbox/boot issue.
http://rides.webshots.com/video/3033367 ... 3056QJWJBh

that WILL work
2 stroke builds are so simple and clean.

Update, pulled shock out, clamped carb in nice and tight. Ran the heat gun on both boots for a while, heating evenly and sneaking up on it. Let it sit overnight and she seems to be holding the "memory" when the carb was removed.
Now, just to deal with the seal to the box.... Ordered up another metal retaining flange for the inside of the box, minor modifications and we will have a "sandwich" seal.

chachi243 wrote:that WILL work
2 stroke builds are so simple and clean.

after doing both 2 stroke and 4 stroke builds, I have no desire to ever convert another 4 stroke chassis. a gen-3 250 chassis almost fits as is, the gen 4 chassis need EVERYTHING f-ed with.

OK

My stock 125 boot worked almost perfect. I had to stretch it about 1/8".

I got the alignment issue solved. No big deal.

I'm sure the airbox and boot are stock 125 items on my S.H. Limited.

CR500 4 Ever wrote:I'm sure the airbox and boot are stock 125 items on my S.H. Limited.

they are per AJ

I put a rad valve on my ttm#5 and the carb fit a lot better.

high velocity wrote:I put a rad valve on my ttm#5 and the carb fit a lot better.

sweet, my donor motor came with a Rad Valve. I think I'm going with this for the honda factory fuck up airbox
http://www.mxbonz.com/cnc_airbox_fix.htm

yota wrote:

high velocity wrote:I put a rad valve on my ttm#5 and the carb fit a lot better.

sweet, my donor motor came with a Rad Valve. I think I'm going with this for the honda factory fuck up airbox
http://www.mxbonz.com/cnc_airbox_fix.htm

Wow! that is slick!!!! I picked one up....... Waaaaaay better than my ghetto mod.....Thanks for the link!

yota wrote:

high velocity wrote:I put a rad valve on my ttm#5 and the carb fit a lot better.

sweet, my donor motor came with a Rad Valve. I think I'm going with this for the honda factory fuck up airbox
http://www.mxbonz.com/cnc_airbox_fix.htm

my gen-3 came with one of these installed in anodized red, I was wondering what the deal was.

YOTA. did the rad valve give you a better alignment between the carb and the boot?

Thanks
Rick

no idea, don't have my frame back yet.