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Ducati Monster Forum
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(Moderator:
Speeddog
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Frame cracked!
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Topic: Frame cracked! (Read 5666 times)
Dmitry
Full Member
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Posts: 100
Frame cracked!
«
on:
February 14, 2015, 01:23:50 PM »
Hello everyone!
On my Ducati Monster M900 (1997) cracked frame. You can see it on the photos. Crack was discovered after buying the motorcycle. What do you think, how long i can ride on this frame, if I ride on good roads?
Photos:
http://ipic.su/img/img7/fs/1.1423948994.jpg
http://ipic.su/img/img7/fs/2.1423949008.jpg
http://ipic.su/img/img7/fs/3.1423949022.jpg
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Howie
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Posts: 16808
Re: Frame cracked!
«
Reply #1 on:
February 14, 2015, 01:48:41 PM »
Weld ASAP! Also move post to Tech.
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Speeddog
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Re: Frame cracked!
«
Reply #2 on:
February 14, 2015, 03:43:19 PM »
Quote from: howie on February 14, 2015, 01:48:41 PM
Weld ASAP! Also move post to Tech.
Yes, get that welded up, do not ride it that way.
Confirm that both motor mount bolts are not broken, and are tight.
Also inspect the mounting areas on the crankcase for cracks.
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Re: Frame cracked!
«
Reply #3 on:
February 14, 2015, 07:11:57 PM »
ouch, that's pretty bizarre
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monsta
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Posts: 807
Perth, Australia.
Re: Frame cracked!
«
Reply #4 on:
February 14, 2015, 11:36:43 PM »
Been known to happen before... this was mine,
I re-inforced it (plus the lower X section and braced the headstem) with some gussets for the fix...
«
Last Edit: February 14, 2015, 11:46:19 PM by monsta
»
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93 M900 - 07 ST3 - 00 748s trackbike - 78 900SS - 13 848 EVO Corse SE
Dmitry
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Posts: 100
Re: Frame cracked!
«
Reply #5 on:
February 15, 2015, 02:31:22 AM »
Quote from: Speeddog on February 14, 2015, 03:43:19 PM
Yes, get that welded up, do not ride it that way.
Confirm that both motor mount bolts are not broken, and are tight.
Also inspect the mounting areas on the crankcase for cracks.
What do you think about this?
http://ipic.su/img/img7/fs/IMG_2258.1423996266.jpg
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Dmitry
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Posts: 100
Re: Frame cracked!
«
Reply #6 on:
February 15, 2015, 02:37:09 AM »
Quote from: monsta on February 14, 2015, 11:36:43 PM
Been known to happen before... this was mine,
I re-inforced it (plus the lower X section and braced the headstem) with some gussets for the fix...
Thanks for the photos! I will do about as:
http://ipic.su/img/img7/fs/IMG_2258.1423996266.jpg
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Dmitry
Full Member
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Posts: 100
Re: Frame cracked!
«
Reply #7 on:
February 15, 2015, 02:41:07 AM »
Quote from: monsta on February 14, 2015, 11:36:43 PM
Been known to happen before... this was mine,
How to think, how could this happen?
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monsta
Hero Member
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Posts: 807
Perth, Australia.
Re: Frame cracked!
«
Reply #8 on:
February 15, 2015, 02:52:04 AM »
Quote from: Dimon26 on February 15, 2015, 02:31:22 AM
What do you think about this?
http://ipic.su/img/img7/fs/IMG_2258.1423996266.jpg
how thick is the gusset you have there?
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93 M900 - 07 ST3 - 00 748s trackbike - 78 900SS - 13 848 EVO Corse SE
monsta
Hero Member
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Posts: 807
Perth, Australia.
Re: Frame cracked!
«
Reply #9 on:
February 15, 2015, 02:55:08 AM »
Quote from: Dimon26 on February 15, 2015, 02:41:07 AM
How to think, how could this happen?
fatigue... High stress area... poor welds....
combination of all?
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93 M900 - 07 ST3 - 00 748s trackbike - 78 900SS - 13 848 EVO Corse SE
Dmitry
Full Member
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Posts: 100
Re: Frame cracked!
«
Reply #10 on:
February 15, 2015, 03:15:13 AM »
Quote from: monsta on February 15, 2015, 02:52:04 AM
how thick is the gusset you have there?
5 mm. it's okay?
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monsta
Hero Member
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Posts: 807
Perth, Australia.
Re: Frame cracked!
«
Reply #11 on:
February 15, 2015, 03:35:29 AM »
yep...
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93 M900 - 07 ST3 - 00 748s trackbike - 78 900SS - 13 848 EVO Corse SE
Dmitry
Full Member
Offline
Posts: 100
Re: Frame cracked!
«
Reply #12 on:
February 15, 2015, 05:03:17 AM »
Quote from: monsta on February 14, 2015, 11:36:43 PM
Been known to happen before... this was mine,
How long you ride with crack? When found her...
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Howie
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Re: Frame cracked!
«
Reply #13 on:
February 15, 2015, 06:00:40 AM »
I would not go any further than nursing it home if I didn't have to go far. Once it cracks through you will be on the ground. Also, do follow Speeddog's advice to check the motor mount bolts and case. Looseness there can cause that crack.
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Blackout
Hero Member
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Posts: 1179
Re: Frame cracked!
«
Reply #14 on:
February 15, 2015, 08:59:58 AM »
Mine has been cracked at the same site on both sides for years. Probably pretty reckless on my part but I still ride the piss out of it. I'll have to pull the engine to gusset weld it.
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2003 Ducati Monster 800
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