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August 11th, 2008, 10:52 AM   #1
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decomp stop moves to red alert

in 6 months i've had three decomnp stop bolts snap. two have smacked the engine about and the third one didn't. pure and utter luck!

this i believe is an age and fatigue related problem so it moves "up the charts".

every chance you get, change the bolt sat in the camwheel and i'll have a check of whether you can go larger with it.

oddly enough, they don't snap at the head of the bolt but as it enters the nut which should tell you that in order to make sure that they never come loose....... somebody has given them an extra tweak and that has stressed the thread as it enters the nut.

as usual, i think that over engineering it via a bigger bolt is the real answer.....

the annoying tyhinkg is....it's not even needed! 1mm later and the decomp stops on a cam sprocket bolt head anyway!

regards

Taffy
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August 11th, 2008, 01:59 PM   #2
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Does the bolt cause any balance issues ? Is a balanced cam chain sprocket a better sprocket?
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August 11th, 2008, 03:56 PM   #3
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sure!

but first you stop the decomp lobe and then afterwards you balance it all up. you've still got to do what's mechanically right for the bike. it's also only half engine speed.

BTW, i guess even your personal address has stopped taking my emails now eric!!!!

regards

Taffy
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August 11th, 2008, 04:24 PM   #4
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Originally Posted by Taffy
sure!

BTW, i guess even your personal address has stopped taking my emails now eric!!!!


Taffy
I think it may be time to take your computer in for a diagnostic. Are you running virus protection software? You may have caught a cold.
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August 13th, 2008, 01:30 AM   #5
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Taffy why would one still be running a cam sprocket that could cause a failure of

such devistation? The year of units that use said sprocket should by now need updating!

This item should be in the dumpster,this will also help with major expence for the unlucky!
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August 13th, 2008, 03:19 AM   #6
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Originally Posted by husabutt
Does the bolt cause any balance issues ? Is a balanced cam chain sprocket a better sprocket?
Spun mine in a drill a few weeks back & it shakes like all hell when the flyweight flips out! Losing the stop bolt would only improve the balance.
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August 13th, 2008, 03:35 AM   #7
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Originally Posted by BOSS
Taffy why would one still be running a cam sprocket that could cause a failure of

such devistation? The year of units that use said sprocket should by now need updating!

This item should be in the dumpster,this will also help with major expence for the unlucky!
you're up late?

boss

i have yet to see a much newer bike than '05 and they all have this nut and bolt affair.

i'll look out for the updated part. the people i'm dealing with have never had anything upgraded whatsoever! so the chance of this being changed is zilch!

regards

taffy
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August 13th, 2008, 09:20 AM   #8
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Was the decomp stop bolt eliminated or replaced with an updated stop or cam gear?
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August 13th, 2008, 10:17 AM   #9
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i trust that that was addressed to boss coz i don't know as you know....

regards

Taffy
Attached Thumbnails
decomp stop moves to red alert-berg-exhaust-002.jpg   decomp stop moves to red alert-berg-exhaust-001.jpg   decomp stop moves to red alert-berg-exhaust.jpg  
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August 13th, 2008, 11:02 AM   #10
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It appears the decomp stop bolt is not used in 2007.

I can't seem to download my own attachment. If no one else can see it just download the 2007 entire parts manual from husaberg.com.
Attached Files
File Type: pdf 2007 Cam Sprocket.pdf (106.2 KB, 150 views)
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