what can make this noise

3171 Views 21 Replies 6 Participants Last post by cheapfast450r, Oct 10, 2008

cheapfast450r

Discussion Starter · Sep 23, 2008

when you have the bike in neutral and you hold the clutch in, you don't hear the noise......... but when you let the clutch out it starts this like bearing roaring sound, not too loud but very noticeable, with no noticable viberations either.

if you try to take off and you let out on the clutch....... you fell a viberation come from the clutch....just as it starts to grab..........i have replaced the clutchs pack and it still does it....... but it did it with the old ones too......

could that be the needle bearing for the hub assy? i noticed that the clutch hub assy has play to it....it wobbles on the shaft alittle, i took the needle bearing out.....it looked fine, but i don't know what good is......so is their suppose to be any play in between the hub to needle bearing or needle bearing to the race it rides on.....the manual doesn't tell ....just says inspect and replace if needed???

has any body seen this?........ any help on what needs changing would be great.....

oh yea, while i have your attn. ....that grimlin's back........... been around 14 hrs and broke another decompression spring.....same spot at the bend just before the weight. that makes ???? i lost count.... think 4 have broken now......and still have no clue as to why......unless it bad springs....like a bad run or something? anyway abody seen a fix for that too........tks bryan

edit: i think what i'm calling the hub is really the clutch basket.......does it sound like it's time to put a hinson in?

1 - 20 of 22 Posts

duke416ex

· #2 · Sep 23, 2008

I have replaced that bearing in my clutch before. It lets the basket get enough movement that it will actually rub the side cover. That could be part of your trouble. If it is rubbing, if you have the cover off you can look at the basket and see a rub mark around it on the lip close to the gear.

On the decomp, sounds dumb, but are you sure it is on right? Liek maybe the weight is moving to far back and breaking the springs?

cheapfast450r

Discussion Starter · #3 · Sep 24, 2008

I have replaced that bearing in my clutch before. It lets the basket get enough movement that it will actually rub the side cover. That could be part of your trouble. If it is rubbing, if you have the cover off you can look at the basket and see a rub mark around it on the lip close to the gear.

On the decomp, sounds dumb, but are you sure it is on right? Liek maybe the weight is moving to far back and breaking the springs?[/b]

i will check that out......but on the decompressor you can only put the weight on one way. there is a grove that the spring lines up with and are very carefull not to bend or damage the spring putting it on......i have replaced the weight thinking it was worn but it still breaks.....i wonder if there is maybe some how the weight is getting snapped back and forth........seems to break after i drag race.... i know the bike is turning over 10k rpms....

thanks for the help.

bryan

timblazer2

· #4 · Sep 24, 2008

i just had my needle and balancer bearing go.. started making a wine

duke416ex

· #5 · Sep 24, 2008

I have had those go too and just made a rattle on mine.

That was kinda my thought on the decomp, was that maybe it was turning a little far and stretching the spring.

cheapfast450r

Discussion Starter · #6 · Oct 3, 2008

well i have a clutch basket on order. mine is hurt pretty bad. also ordered the needle bearing and collar. we'll see if that makes a differance with the clutch.

the decom thing is .......i want a 08 cam tower....and get rid of the spring schit!! that will take care of it!

only thing about the 08 tower you can't adj the comp. psi., it's preset......but in my case it shouldn't matter.....just a thought??

will the 08 cam tower fit a 06? i already know it will hold a hcIII.

bryan

ZIPS-TRX

· #7 · Oct 3, 2008

The only issue I see with the 08 cam tower, the preset factor, is that its preset is designed to work with the factory cam. So aftermarket cams could be a problem.
Something to think about.

cheapfast450r

Discussion Starter · #8 · Oct 4, 2008

The only issue I see with the 08 cam tower, the preset factor, is that its preset is designed to work with the factory cam. So aftermarket cams could be a problem.
Something to think about.[/b]

we just put a hcIII in my buddy's 08 and it wouldn't turn over the motor without a jump on the battiery (past decomp)....hope it's just a weak bat.....looks like the only way to adj. is by adding or removing material from the pin that rides inside the lobe?

if i could stop my decomp spring from breaking i would keep my 06 tower but i have broken ~5 now and it sucks to have to break it down and replace a spring that should not break. it has no hard job to do and is just crap....,... :rant: and now i want to :2guns: it.

tks., bryan

ZIPS-TRX

· #9 · Oct 4, 2008

Im betting the stage 2 has more cranking compression causing it to turn over harder.
I would go back toother cam tower and see what happend. Im still on my original stock 04 decomp with no problems. Im sure theres something minor that got missed, thats why it keeps failing.

Could you post a pic of the decomp assembled on the cam?

stevefarris

· #10 · Oct 4, 2008

I agree with zips. There HAS to be something you assembled wrong or something is damaged. You are the only one having this repeated problem, atleast that I've seen. I've swapped out different cams trying different things on my 05, and have never had a decomp. problem.

cheapfast450r

Discussion Starter · #11 · Oct 4, 2008

I agree with zips. There HAS to be something you assembled wrong or something is damaged. You are the only one having this repeated problem, atleast that I've seen. I've swapped out different cams trying different things on my 05, and have never had a decomp. problem.[/b]

i have never had the cam out since it was put in by the dealer and i have never taken the assy apart, only to install the return spring for the weight that keeps breaking.....i have replaced the weight . thinking it was worn at the stop.

when i replace the spring i am very carful not to bend it or twist it.....could the assy the weight goes into be worn causing the weight to wobble or viberate making spring wear and fatieugeat the bend of the spring? ...every spring has broken in the same place?.....i will get some pics up soon of how it is now but these are some i have taken no long ago.

you can see how this spring was not in it's right place. it is resting out of the grove that it's suppose to be in.

http://i337.photobucket.com/albums/n364/re...0r/IM002117.jpg

http://i337.photobucket.com/albums/n364/re.../IM002120-1.jpg

http://i337.photobucket.com/albums/n364/re.../IM002116-1.jpg

http://i337.photobucket.com/albums/n364/re...0r/IM002120.jpg

http://i337.photobucket.com/albums/n364/re...0r/IM002122.jpg

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stevefarris

· #12 · Oct 4, 2008

3

I just so happen to have snapped a few pics of mine when I took my cam out a couple days ago. I'm not sure if there's any difference between the 04-05 and 06-07, but here's some pics of mine to compare to.

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cheapfast450r

Discussion Starter · #13 · Oct 4, 2008

looks just the same to me??? i wonder if it's just worn out? my roller that follows the cam and is on the lever has a few chips on the edge, that are very small.

if you grab the weight, how much play is in it? mine has some play like the hole is bigger/worn. is that normal?

i only have about 4 more hrs before i have to redo my head, i have a valve that's sunk. so i will be taking back apart and this time i will take the decompression apart. i have never had it apart?

why is the allen bolt so far out? it sticks out from the cam, past the weight.
mine is almost under the weight.

tks...bryan

ZIPS-TRX

· #14 · Oct 6, 2008

the bolt sticks out because its not tight.

We need a pic just like that one to really see whats going on.

cheapfast450r

Discussion Starter · #15 · Oct 6, 2008

the bolt sticks out because its not tight.

We need a pic just like that one to really see whats going on.[/b]

ran it pretty hard this weekend , with no problems . but i will be taking her down to check valves and i will get some good pics of the assy......tks

lumi

· #16 · Oct 6, 2008

use the MACRO feature on your camera, it looks like a flower symbol, makes you take closer, clearer pics.

p.s. pics need to be bigger like buellers aswell.

cheapfast450r

Discussion Starter · #17 · Oct 6, 2008

use the MACRO feature on your camera, it looks like a flower symbol, makes you take closer, clearer pics.

p.s. pics need to be bigger like buellers aswell.[/b]

yea, i know what you mean, my camera is not very good....ok it's cheap, it has nothing like that. that's why i will try to get one that will give better Q. i will get them up soon . it will be a few days, hopefully sooner......tks.

cheapfast450r

Discussion Starter · #18 · Oct 9, 2008

well i have my new hensen clutch with tusk clutches just about installed, but i will not be able to try it out untill i get my head work done. mabe this will take care of the viberation?

i have used up my last valve adj. so it's time to pull the head and get some new valves in......i think i'm going with +1 exaust and ss intake this time. i will be putting a hcIII cam on top my stock piston. i will post some pics soon. really!

cheapfast450r

Discussion Starter · #19 · Oct 10, 2008

here is a pic of my cam assy.....and i have figureded out WHY my return spring has been breaking!!! :rock:

i found that "the setting plate" was not put on right when the honda shop installed my HRC kit, a year and a half ago!!

so i have had this thing off so many time it's not funny and didn't see how the plate was mounted....i thought it was right, the pros put it on, you know the people that do this all day.......but thinks can and allways will happen .......i'm just glad i found what is happening!!

if you look at the pic you will see a white dot on the end of the setting plate. i don't know who put it their but after i took the manuel and looked thru a magnifiying glass :detective: i could see that the plate was not right and after further looking i seen how the setting plate wasn't setting over the end of the return weight holding it from walking out.......so the only thing holding the weight from moving out was the return spring and after a while of high rpms it would stress the spring and break it at the bend............so i thought i would share with everybody this. i have been baffeled over this for a while.
thanks for all that have tried to help. and some said it was not assy correct......you were right!! i just wish i had known what it was suppose to look like .....thank God for books and pics!! :beer:

i will edit this latter with a pic of how it should be but this is the wrong way.

http://i337.photobucket.com/albums/n364/re...0r/IM002180.jpg

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stevefarris

· #20 · Oct 10, 2008

Yeah, thos pictures I took show how that plate goes on. And yes, the bolt was loose because i was swapping cams and wanted to snap a couple pics for myself so I could see how the plate goes on when I reassemble it. Sound like a good idea, LOL?

Anyways, at least you found it and can mark that headache off your list.

1 - 20 of 22 Posts

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