KDXRIDER.NET

What IS this?



Yes, I know what it is (unfortunately)...but do you have a notion 'bout it??

:chuckles:

Can you put a tape up next to it? I bet I can tell ya if I know how big it is....

Looks like a bolt with a press in insert.

My guess is that it was attached to some internal engine part

part of your power valve system? linkage part?

That was my first thought also, Looks like one of the Kips valves

I think that thing is the size of a fingernail.

It's part of the KIPS... What do I win? That top part used to be a gear...right?

I think we have a winner! Don Pardo, tell him what he's won. It does look like an exhaust sub-valve. Since it sounds like you "unfortunately" know about it, can we continue o assume it is yours? If so, when do we get to start on the "would you take advice from a guy whose subvalve looks like that" jokes?

It's a new ear stud some of those younger kids are wearing nowadays. No wait, it's a squashed bullet slug that mushed funny when it hit something. If its KDX engine related, can't ehlp much there - yet.

Mark

New ear stud? KayDee? Is that you???

It's just short of an inch long.

Yup..I think Inda looked at the name of the file (before I deleted it and reloaded with a different name...cuz I didn't want it to be THAT easy!)

It's a RH subport valve. Part of it, anyway. Was doing some regular maintenance (repacking the S/A), noticed a broken lower pipe mount. So, off came the pipe...with a rattle in it!

And lookee what came out!

Easy to do now, but looking back there did seem to be a bit less tractability on the bottom end a ride or two back...but it wasn't much of a deal.

Something that (again, is easy now) DID make me wonder...there has been just lately a good deal of spoo out the KIPS actuator rod cover (RH). I figured the o-ring had quit.

I asked Mr. Fredette about it...cuz they were the last folks in there. The last time the KIPS was serviced was when the cylinder was ported/bored/plated. Yes, I did check the ops of the KIPS when I put the bike together, it was: Timed. Working. Freely moving. Mr Fredette said, '..have not heard of this on the 1995 and newer. the 89-94 happen when the top end has not been service for a while. the valve will break and wear around in there and get stuck or fall out.'

Seems real odd to me. It would break...why? There isn't a lot of stress on the thing. Not been serviced for awhile? Yes, carbon buildup would do it. I have no carbon buildup. My KIPS is wet...but it isn't carboned up. Naturally, I wonder 'What did they do?'. That IS unfair..but they were the last folks in there. If it WAS an 88-94, I would wonder a lot less.

Great! '..wear around in there...'. What does that mean? Think the cylinder is shot?

I'll have to find out later, cuz I'm not taking it apart one-two days before Labor Day!!

Maybe I all of a sudden have a need for that new-to-me cylinder I have sitting at home......

First, I have a need for a piston kit.............

For the winner? An all beer paid trip to the State of Jefferson for a bit of a spoogy ride in the Prospect OHV system this Labor Day Weekend!!! Yippee!!

....on the way, yet?

Yeah, Jason. I should make that my avatar with a 'N.E.R.D. Wrench Certified' label?

Nope... didn't cheat... didn't even try... I need to see a Dr.

Who said cheat? Looking in the right place for a correct answer is just smart.

You raaaaaaaaaaaang !!!!!

Ha! I love it Trev!

-Maurice

Is that a "A" cylinder CC?

The 'new' cylinder? It's a 'B'.

My OEM cylinder is a 'B' also. Well...it was a 'C', but I had it plated to a 'B'. I don't have a cylinder guage, but the clearances were OK. ...like I could tell the difference......

Old hat...but for first timers (or somebody) the difference is .01mm, which is less than 1/2 of one thousandth (.00039") of an inch. Doesn't amount to diddle when it comes to figuring piston-to-cylinder clearances....

Oh...an 'A' is the smallest, an 'F' is the largest of the alpha-designated Pro-X pistons, 65.94mm/65.99 respectively.

KayDee....you should quit your day job. Full time comedian is your calling! I figured you'd pull something like that...but you did a darn good job of it!! Ha!

Holy cow!!! I just looked up parts: The subport drum is $45.50 from Ayers!!! Criminy!!

They don't show an o-ring on the rod..just 'packing'. What am I missing?

I have an OEM "A" ifn' you need it!

I appreciate that. I'll have the cylinder checked with a bore guage and then I'll know for sure what to get.

What is your favorite number for piston/cyl clearance if you could pick it? .003/4" or so?

Note: Wiseco owners need not respond! If you used 3/4 thou clearance, you'd be rebuilding your bike by now...

Oh..that's 3 or 4...not three quarters...

That'd be pretty good! Currently mine is bore is 66.014 /piston 65.95