The front sprocket has a built in "washer" either side, and they aren't the same both sides !
Are you sure that you have the sprocket on the right way round.....?
No kidding !
There should be markings on your new sprocket which says which is inside and which is outside...............

Just 02C worth

 

Well, the 17 tooth sprocket I took off had the "17" stamp facing out.
The 16 I put in had the "16"stamp facing out, so yeah they are on there
proper. It was just the chain damper ring diameter was too big
for the smaller 16 tooth sprocket so I took it off and and put the
chain guide ring back on there by istelf with no chain ring damper.

BTW the front sprocket has 1mm + wiggle room on the countershaft
that effectively makes it "float", the main bolt and washer only serves
to stop it sliding off. It does not "fasten" the sprocket to the countershaft

No further issue with it.

Someone else made a post saying he left the entire chain ring guide
and damper off his CBR 600 with no issues.

I could do that too but if you get a small rock or stone in a link and there's
no chain guide .................guess what your chain goes for a jump which
could break the lower motor casing , the speedo drive not too mention your
*** getting tanned if you are running a good clip and she slides out from
under you.

Thanks though, for sure I'm sure it's (front Sprocket) on right.

Took it out today and ran trip digits, stopped , checked everything and
it was all good as they say.

MK

 

I said that I left the guide ring off but I'm fairly sure that the font sprocket was retained tightly by the bolt and washer on the countershaft. The fact that the sprocket is "floating" would concern me a little bit. It's hard for me to remember 4 years back.

Let me think about it a little more and get back to you.

 

Fair 'nuff
But it floats, at least mine does , checked with Honda dealer this am when I went to
get somemore PJ1 blue label chain lube an he said yeah it has wiggle room on the counter shaft by about 1 mm spec, least that's what he said.

Talking further about it with the Honda Guy......

I guess the countershaft head & splines and the sprocket itself are both hardened steel to take the kind of abuse. Bit like a sliding splined CVJ in an auto.

PJ1 Blue is good stuff. stays on the chain like a momma

 

My sprocket has two bolts which hold it in place as well as being on the shaft.
It doesn't sound right to me...........................

 

OK .
Yes, correctly installed and torqued. they do have a little gap (float) between the bolt/washer and front sprocket. This is according to my memory and confirmation of other googled cbr frt. sprocket installations.
You are good to go even without the sound dampener. I went 1000s of trouble free miles on my old 600 after sprkt change b4 selling it.

Got a new 06 cbr1000rr.

 

Thanks Fletchenv man, good to have confirmation

06 RR is a nice ride saw one at Honda Dealer today ............slick hot.

So I made a few "warp drive" runs tonight on my new gear setup.
Great for running fast switchbacks and hairpins amazing response
coming out of them. Got some real thrills pushing her to the max.

Headed back to base when the knats came out to stick to my visor.

All is well and ended well thanks to all for input s'what make this
forum great.

MK