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SB8K Gobert On Fire, then some rebuilding...phase 1!

 
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zombie



Joined: 10 Feb 2009
Posts: 272
Location: UK

PostPosted: Sun Oct 03, 2010 10:30 pm    Post subject: SB8K Gobert On Fire, then some rebuilding...phase 1! Reply with quote

Hi all,

I have posted some pictures of my Gobert getting burnt out and a few bits from the rebuild, which might be interesting especially if you are doing any work in the area of the pump.

http://s1228.photobucket.com/albums/ee460/bimotapix/sb8k%20burnout/

I am close to completing the bike now and will post some final pictures when this happens.

Cheers,
Zombie

PS
I would like to add here that the parts that I have received in the last 18 months have all been from the excellent RosMoto in Turin. Bimota took over 2K of my money last December but are still in the process of gathering together and sending the spares 10 months later. Makes you wonder, because Rosmoto have successfully shipped stuff to me arriving at my door within 3 days of order...
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zombie



Joined: 10 Feb 2009
Posts: 272
Location: UK

PostPosted: Tue Oct 12, 2010 8:47 pm    Post subject: Reply with quote

Update: After fitting a fuel pressure regulator at 40psi (to combat the massively over to the top 60psi pump pressure), the SB8K is currently getting a tune up with TPS and throttle balancing being done - current status is at 129bhp and a very nice curve getting there. I am to be honest over the moon with that especially as this exhaust is much quieter than the old one which got burnt out.

Almost time to get the bodywork back on!
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zombie



Joined: 10 Feb 2009
Posts: 272
Location: UK

PostPosted: Fri Oct 15, 2010 12:13 am    Post subject: Reply with quote

Update: bike has passed its MOT. Its showing just over 130bhp at the back wheel with legal exhausts now too. Cool
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oily



Joined: 05 Apr 2008
Posts: 4788
Location: worcestershire

PostPosted: Fri Oct 15, 2010 6:18 am    Post subject: Reply with quote

Result Laughing
I love a happy ending Wink
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GeeKay



Joined: 29 May 2009
Posts: 1519
Location: West Yorkshire

PostPosted: Fri Oct 15, 2010 10:30 am    Post subject: Reply with quote

two great results - completing the rebuild and getting 130bhp at the back wheel - you must be well pleased Very Happy
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zombie



Joined: 10 Feb 2009
Posts: 272
Location: UK

PostPosted: Sat Oct 16, 2010 12:23 am    Post subject: Reply with quote

Thanks Geekay, Oily yes I am well pleased will post some more pics soon
Cheers
Zombre Cool
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GeeKay



Joined: 29 May 2009
Posts: 1519
Location: West Yorkshire

PostPosted: Sat Oct 16, 2010 6:52 am    Post subject: Reply with quote

can you post the dyno maps?
or did you draw them by hand? Wink
I want to see where you got the extra 7bhp from. Very Happy
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zombie



Joined: 10 Feb 2009
Posts: 272
Location: UK

PostPosted: Wed Oct 27, 2010 10:43 pm    Post subject: Reply with quote

Hi GeeKay at long last please see below the dyno map...

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bimotard



Joined: 24 Apr 2008
Posts: 32
Location: Madrid, Spain

PostPosted: Mon Dec 06, 2010 9:42 am    Post subject: Reply with quote

Why burn the bike?, I have a Gobert too!
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zombie



Joined: 10 Feb 2009
Posts: 272
Location: UK

PostPosted: Mon Dec 06, 2010 10:35 pm    Post subject: Reply with quote

Hi,
The main problem seemed to be a large collection of unburnt fuel in one of the silencers. Mixture of a badly firing (wet) spark plug and the bike injecting a lot of fuel on choke on a very cold day.

Cold weather is probably not a problem in Madrid though so you don't need to worry!

Cheers Zombie
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bimotard



Joined: 24 Apr 2008
Posts: 32
Location: Madrid, Spain

PostPosted: Tue Dec 07, 2010 7:41 am    Post subject: Reply with quote

Thanks, do not be so sure, Madrid last week was at risk of snow.
Now the temperature is good but it rains a lot.
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zombie



Joined: 10 Feb 2009
Posts: 272
Location: UK

PostPosted: Tue Dec 07, 2010 11:51 am    Post subject: Reply with quote

I am not sure if this applies to all SB8K...could just be that mine is a prototype as it was the 2nd one made (#2/50 Gobert ltd)....

If you are riding in freezing weather, my best advice would be,
a) always carry the tools to change a spark plug.
b) if a cylinder starts misfiring, change the spark plug. If you don't, fuel will be pumped into the exhaust system, where it might catch fire like mine did.
c) Don't run the bike for short periods - e.g. just starting it every now and then.
d) And...try and keep a full bladder, just in case!!

Cheers
Zombie
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oily



Joined: 05 Apr 2008
Posts: 4788
Location: worcestershire

PostPosted: Tue Dec 07, 2010 1:20 pm    Post subject: Reply with quote

maybe getting it fuelling properly would save riding around with a full bladder.
It hurts just thinking about it Laughing
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bimotard



Joined: 24 Apr 2008
Posts: 32
Location: Madrid, Spain

PostPosted: Tue Dec 07, 2010 2:39 pm    Post subject: Reply with quote

zombie wrote:
I am not sure if this applies to all SB8K...could just be that mine is a prototype as it was the 2nd one made (#2/50 Gobert ltd)....

If you are riding in freezing weather, my best advice would be,
a) always carry the tools to change a spark plug.
b) if a cylinder starts misfiring, change the spark plug. If you don't, fuel will be pumped into the exhaust system, where it might catch fire like mine did.
c) Don't run the bike for short periods - e.g. just starting it every now and then.
d) And...try and keep a full bladder, just in case!!

Cheers
Zombie

My Gobert is the 22/50.
I,ll keep a full bladder, Ill remember it !! Laughing
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