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DB4 problem
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2bims



Joined: 03 Apr 2010
Posts: 7289

PostPosted: Wed Dec 09, 2015 12:13 pm    Post subject: Reply with quote

I thought the same Vort...but in the spirit of Xmas I didnt like to say anything....although I'm begging to wire wool off that surface corrosion on his rear Paioli shock body......... Laughing
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vort28



Joined: 22 Mar 2010
Posts: 2194
Location: Northwest , UK

PostPosted: Thu Dec 10, 2015 1:29 pm    Post subject: Reply with quote

I need to move on form that space now Brian, glad those pictures are now lost on the previous page Shocked

Anyway , moving on , pictures of my spare db4 frame and yes, no coil holes.










But then it did come with a twin seat frame so maybe the inj bikes had ancillaries in different places.
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welshlamb



Joined: 09 Mar 2011
Posts: 592
Location: South Wales , Nr. Abergavenny

PostPosted: Fri Dec 11, 2015 10:01 am    Post subject: Reply with quote

there are of course some photos of a semi-naked DB3 frame in the DB3 project bike listed on EBAY (and link also from this DB section)
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deebee4



Joined: 08 Jan 2011
Posts: 266
Location: Netherlands

PostPosted: Mon Dec 14, 2015 8:49 pm    Post subject: Reply with quote

Wow, I wish I had a spare frame..... Only have a spare swingarm.....

To the Bimota owner in Poland: do NOT drill and try to tap the holes in the frame! These are all M6 coil inserts! A good car body repair shop will have them with the fixing tools to borrow.

Just 2 holes left and right inner side for the ignition coils, but you could also fit he coils elsewhere, like in the triangle behind the headstock. Depending on if you're using the original air box or not.

Battery tray is fitted to the welded nuts in the rear subframe.

Just send some pictures of your bike/parts. Can the damaged frame be not of help?
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deebee4



Joined: 08 Jan 2011
Posts: 266
Location: Netherlands

PostPosted: Mon Dec 14, 2015 8:54 pm    Post subject: Reply with quote

Cool! A brand new spare frame with a frame number on the headstock! What are the last 3 digits?
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vort28



Joined: 22 Mar 2010
Posts: 2194
Location: Northwest , UK

PostPosted: Mon Dec 14, 2015 10:22 pm    Post subject: Reply with quote

deebee4 wrote:
Wow, I wish I had a spare frame..... Only have a spare swingarm.....



Have the swing arm also, Rolling Eyes

Might also have a few other models frames Shocked Maybe, depends who is asking Wink

You never know when spares will come in handy.
Always mean to get a few out as display items for the Manchester show, but never managed it yet as can't work out a way to display them.
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hatyszysta



Joined: 13 Jan 2014
Posts: 18
Location: Poland

PostPosted: Fri Dec 18, 2015 6:47 pm    Post subject: Reply with quote

I have another huge problem there is a bar in the frame. I have a carburator version of my DB4 and becouse of that bar the airbox doesn't fit! It looks like bimota classic parts sold me a wrong frame! ;/
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2bims



Joined: 03 Apr 2010
Posts: 7289

PostPosted: Fri Dec 18, 2015 8:30 pm    Post subject: Reply with quote

It would really help if you provided some pictures of the frame and bike etc....as otherwise everyone is just guessing what you have....put them on the FOrum and then we can all decide what you have
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hatyszysta



Joined: 13 Jan 2014
Posts: 18
Location: Poland

PostPosted: Sat Dec 19, 2015 7:02 pm    Post subject: Reply with quote

www.zapodaj.net/aad4b468e557c.jpg.html
www.zapodaj.net/705b527aff324.jpg.html
www.zapodaj.net/eddb8c0737b6f.jpg.html
www.zapodaj.net/2d29736494371.jpg.html


airbox doesn't fit :/ the bar seems to be to much in front towards front suspension.
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deebee4



Joined: 08 Jan 2011
Posts: 266
Location: Netherlands

PostPosted: Sat Dec 19, 2015 9:34 pm    Post subject: Reply with quote

hatyszysta wrote:
www.zapodaj.net/aad4b468e557c.jpg.html
www.zapodaj.net/705b527aff324.jpg.html
www.zapodaj.net/eddb8c0737b6f.jpg.html
www.zapodaj.net/2d29736494371.jpg.html


airbox doesn't fit :/ the bar seems to be to much in front towards front suspension.


Strange, The bar is the same as on mine. I did remove the air box and have fitted conical K&N pod filters. The air box eats power....... Was your db4 may be originally a Mantra (db3)? My air box looks different, I don't have the round hole in the underside....

Please send a picture of the whole frame from the side. You can identify a DB3 frame from an DB4 frame by looking at the frame lugs for the rear subframe.
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vort28



Joined: 22 Mar 2010
Posts: 2194
Location: Northwest , UK

PostPosted: Sun Dec 20, 2015 10:40 pm    Post subject: Reply with quote

I to have the cross bar on mine, but also have flatsides and cone filters, so can't remember what the original air box looks like.
As deebee says a picture of the seat frame mounts will clear things up, but I have had a look on BCP site and he lists the frame for db3-4, with a db3 picture.Hopefully this is a mistake on the website.
Confused
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hatyszysta



Joined: 13 Jan 2014
Posts: 18
Location: Poland

PostPosted: Tue Dec 22, 2015 3:51 pm    Post subject: Reply with quote

thi is my old frame:

http://www.zapodaj.net/2da1dc73c94a1.jpg.html

What kind of cone filters did you put to your bike?
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deebee4



Joined: 08 Jan 2011
Posts: 266
Location: Netherlands

PostPosted: Sat Dec 26, 2015 12:11 pm    Post subject: Reply with quote

hatyszysta wrote:
thi is my old frame:

http://www.zapodaj.net/2da1dc73c94a1.jpg.html

What kind of cone filters did you put to your bike?


OK, that's the db4 frame. Now lease show a picture of the new frame (from the side)

K&N Conical shaped filters, will post a picture later.
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polyesterpig



Joined: 30 Jan 2011
Posts: 76
Location: California USA

PostPosted: Tue Dec 29, 2015 12:14 am    Post subject: Reply with quote

The DB4 series frames had two different part numbers. One for the carbureted single seat version and the other for the fuel injected Two seater. I know the air boxes are completely different, so possibly the frames are slightly different.
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deebee4



Joined: 08 Jan 2011
Posts: 266
Location: Netherlands

PostPosted: Tue Dec 29, 2015 6:55 am    Post subject: Reply with quote

polyesterpig wrote:
The DB4 series frames had two different part numbers. One for the carbureted single seat version and the other for the fuel injected Two seater. I know the air boxes are completely different, so possibly the frames are slightly different.


Could well be. I can measure up my frame, now the plastic are taken off and hanging on the wall. Need to do some maintenance for the next season.

So let's define some measuring points like i.e. headstock - profile between the two sides.

Thai will give some clarification.
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