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  #1  
Old 27-08-2014
walsy walsy is offline
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'13 berg bent subframe...fix?

The plastic subframe on a 2013 berg has opened up, making a gap into the air box. Is worth gluing the airbox to the subframe with windscreen rubber glue or is there a better fix? It seems to open up on every ride and then it doesn't seat back in its place properly.
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Old 28-08-2014
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Klee Klee is offline
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I've got a 13 Berg 350 with exactly the same problem. Dealer even sent me a new subframe but the design itself is flawed. Throw in all the flex and eventually the airbox will overlap the subframe.

See this thread from post 18 onwards for more info: http://www.dirtbikeworld.net/forum/s...d.php?t=104381

Apparently they put a bit of foam or something in the 2014 models to stop dust coming in but that won't stop the flex. I see the 2015 models have more bracing on the subframe to help fix it but haven't seen one first hand.

Sorry I don't have a solution. I just filled mine up with solastic and a bit of foam to stop the dust coming through but have found that it will pop out and overlap with big hits. Perhaps the only solution is to stand up and do a mono!
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Old 28-08-2014
walsy walsy is offline
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Thanks klee , that's the thread I was looking for. I might try to shape edge so it doesn't get stuck open and then cover the gap with tape leaving a bit of slack for movement.
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Old 29-08-2014
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bogoor bogoor is offline
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250 hours like this, no issues.
Be sure to use stainless.

20140829_101539.jpg
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Old 29-08-2014
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Klee Klee is offline
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Quote:
Originally Posted by bogoor View Post
250 hours like this, no issues.
Be sure to use stainless.
Hey Bogoor - I'm surprised that is working considering how much flex the subframe does. I would have thought the screws would have pulled through the air box but if yours has stood the test of time I might just give it a go.
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Old 29-08-2014
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bogoor bogoor is offline
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Quote:
Originally Posted by bogoor View Post
250 hours like this, no issues.
Be sure to use stainless.

Attachment 96102
Ok, on puter now, so can type.

I used 8g 15mm long selftapping sheatmetal screws.
Clamped so as to get the most material purchase as possible.
Drilled a small pilot hole first.
photo taken today on phone @270hrs

This also keeps airbox boot off the shock housing at full flex/travel.
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Old 29-08-2014
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SIX36 SIX36 is offline
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I have just been ghetto duct tape & tapping mine after each wash.
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Old 01-07-2015
ktmjoe720 ktmjoe720 is offline
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2013 fe501

thank you for this post Bogoor, my FE501 is still in perfect condtion at the subframe/Airbox So I was wondering if doing something like this might be a good preventitive mesure before it moves. I think I will fill the join with Sikaflex then drill and screw with stainless steel screws. that will allow a bit of movement/flex, but keep it from over flexing.

thanks again,
Joe

Quote:
Originally Posted by bogoor View Post
250 hours like this, no issues.
Be sure to use stainless.

Attachment 96102
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Old 01-07-2015
walsy walsy is offline
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If it hasn't sprung by now, it shouldn't.
Its more of a case of a 120 kg young fella on the back hitting everything hard.
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Old 02-07-2015
ktmjoe720 ktmjoe720 is offline
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old fella

Quote:
Originally Posted by walsy View Post
If it hasn't sprung by now, it shouldn't.
Its more of a case of a 120 kg young fella on the back hitting everything hard.
what about a 110kg old fella who still hits things hard.........
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