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Bimota sold....2 nd thoughts. SB7 advise wanted! Urgent!

 
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bimotacarbon



Joined: 09 Nov 2008
Posts: 361
Location: Apeldoorn, the netherlands.

PostPosted: Wed Apr 20, 2011 8:03 pm    Post subject: Bimota sold....2 nd thoughts. SB7 advise wanted! Urgent! Reply with quote

Hi there,
Just sold my sb8 r special with dual xenon see through usa made clutch cover etc...now riding an old school suzuki gt 380 ( a real difference i know) Very Happy... It still is no bimota and i am missing the special feeling that i had on the sb8.
But because of the mono seat it had to leave, anyway now i found a good priced sb7 in the area for about 5000€ ( that is the price he is asking for this bike). Now i am wondering if any of you guys can give me advise what is smart to find out about this bike before buying a complete disaster ( can not find something specticular about the sb7) so if you know the bad points of the sb7 and the best way to discover hidden thingies of the sb7.
Hope you all understand my "not so good english" i may have british blood but you can not see it when you read this message.

Anyway looking forward to your reply.
.
Kind regards,
A suffering ex-bimota driver.
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Evilchicken0



Joined: 12 May 2010
Posts: 2996
Location: London

PostPosted: Wed Apr 20, 2011 9:32 pm    Post subject: Reply with quote

The SB7 was the SB6 frame bodywork and running gear with the Suzuki GSX-R750 RR engine (the WSB special engine) with Bimota's fuel injection. It had a close ratio gearbox and shorter stroke engine so you need to give it some revs before it gives you power, but it's not unridable.
Make sure the engine starts and runs well, if it's tempermental walk away you don't want to have to mess about with the fuel injection. Everything else is just Bimota (like the SB6) ask if the headlights are standard (they're truly awful), Check the chain and amount of adjustment (changing the front sproket is hard on these. Make sure the saddle has the bum stop behind it - they're hard to find.
Check for crash damage - the clocks and batteries are at the front make sure this box isn't bent, check the swingarm behind the footpegs for a dent.

Ride it first before decide, much higher revs than the SB8 and a much smaller bike.
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jatexup



Joined: 24 Jan 2009
Posts: 40
Location: London

PostPosted: Sat Apr 23, 2011 9:13 pm    Post subject: SB7 advice Reply with quote

Hi,

My personal experience is that the SB7's fuelling can only really be sorted with the fitment of a Power Commander. Mine ran like a complete dog before I had one fitted (poor starting and initial running, flat spots, etc.), and in fact wasn't much better afterwards until the genius Chris Gunster (based in Grimsby) got his dirty hands on it and sorted in out once and for all on his dyno. It now runs as sweet as a nut.

The bike rides like a racer on the road, and you do need to thrash it a bit like a two-stroke, but you will be rewarded as although it's essentially not a powerful bike by today's standards, it's extremely rewarding to ride as you can use most if not all of the power, unlike most big sports bikes. I have a race pattern gear change and fairly stiff suspension plus Marchesini wheels so it handles fantastically well - especially on beautiful twisty Italian roads! Go out and buy one but be sure you know what you're letting yourself in for!

Cheers,

John
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bimotacarbon



Joined: 09 Nov 2008
Posts: 361
Location: Apeldoorn, the netherlands.

PostPosted: Sun Apr 24, 2011 10:14 am    Post subject: Reply with quote

Thnx for the reactions, yesterday i visited the guy with the sb7, and i
Drove a mile of 15 on it just to make sure what the current status was of the bike. It drove indeed like a dog...i had to keep the revs high because otherwise the engine would turn off. The initial run was off- line, i just had to give throttle all the time ( really annoying with traffic lights to and slightly embarrasing too!). The gear box felt ok, but sometimes the engine switched off when i was changing gear off course it turned again on after letting the clutch lever go but it didn't give me a good feeling.

I am 99% sure of NOT buying this bike for 5000€.
Anyone got the same issues with his sb7 and a method to fix it?
Regards johan
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Evilchicken0



Joined: 12 May 2010
Posts: 2996
Location: London

PostPosted: Sun Apr 24, 2011 8:28 pm    Post subject: Reply with quote

Difficult to say really ... obviously ask if there's a Power Comander fitted and when the injectors were last cleaned.
Check the side stand return springs are good (the small one can break) that can trigger the engine cut out switch.

But not 5000 E
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zombie



Joined: 10 Feb 2009
Posts: 272
Location: UK

PostPosted: Sun Apr 24, 2011 10:44 pm    Post subject: Reply with quote

Love those safety features added over the last 20 years that cause so many fault finding problems now...

- Dodgy sidestand down cut out switch kills the engine.. Evil or Very Mad
- Dodgy "Clutch lever depressed" sensor won't let you start the motor Rolling Eyes
- Dodgy "Engine in gear" switch wont enable starter motor Sad
- Dodgy "Bike fallen over" switch kills ignition Mad

- Not forgetting the good old traditional engine ignition kill switch faults! Embarassed
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bob



Joined: 09 Jul 2010
Posts: 31
Location: Aberdeen

PostPosted: Tue Apr 26, 2011 7:56 pm    Post subject: Reply with quote

Hi. I have both an sb6 and sb7. The sb7 I bought off from a garage in Silverstone for £2500 unseen. It was all there when I got it - already fitted with a STACK rev counter/speedo. The bike ran fairly poorly when I got it - difficult to start - drowning itself in petrol. I bought a dynojet system from Chris Gunster which came pre installed with a map. That helped a little with the starting and once warmed it ran ok with a little power ramp starting at 10k revs and red lining at about 13.5k. I then treated it to a rebuilt and new map at my local engine builder. It now makes 110 bhp as measured at the wheel - probably less than a new 600cc bike - but no longer has the power step - it feels much more linear. The bike is still fairly difficult to start - but once warmed is great fun. it has a set of race exhausts on it which really make a big difference to both the air flow through the engine and the exhaust note. you really get the feeling your flying once on cam. The bike feels all to get different to ride compared to the sb6. Its feels far lighter and you get the feeling its has far more weight on the front allowing you to get some great handling and turn in from the bike. I prefer the 7 to the 6 for riding as the 6 is harder to ride hard as its just too fast for the road - more of a big bore sportster for me. If you were to buy for the head the 6 would be the one - but if you have a second bike for when the 7 won't start / don't have time to warm it properly - the 7 is the one. Hope this helps.
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zombie



Joined: 10 Feb 2009
Posts: 272
Location: UK

PostPosted: Tue Apr 26, 2011 11:23 pm    Post subject: Reply with quote

Is there a TPS setup procedure for the SB7?

It might help to start off the tuneup process, its so quick to tweak too....make it leaner by undoing 2 screws and turning in the direction of the opening throttle plate, make it richer by rotating the sensor in the direction of the closing throttle plate.


Think we should have an FAQ for TPS, particularly as the Bims seem so sensitive to minor changes from perfection and the TPS seem to need regular tweaking.
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bimotacarbon



Joined: 09 Nov 2008
Posts: 361
Location: Apeldoorn, the netherlands.

PostPosted: Wed Apr 27, 2011 5:06 pm    Post subject: Same Reply with quote

Thnx for all the input. I have to figure some things out thanks to the reply's.i think the problems can be solved when i bring the bim to the right person...i will contact some specialists and maybe i just have to go to the uk with this bike to get it right.
First off all i will figure out the minimum price of the seller for the bad running sb7.
I keep u guys posted when i have news!
Hope i will be riding bimota again soon!
Regards,
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oily



Joined: 05 Apr 2008
Posts: 4788
Location: worcestershire

PostPosted: Wed Apr 27, 2011 5:21 pm    Post subject: Reply with quote

Keep in mind........
A non running SB7 sold for £3700 not so long
Wonder what happened to that Confused
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zombie



Joined: 10 Feb 2009
Posts: 272
Location: UK

PostPosted: Wed Apr 27, 2011 11:46 pm    Post subject: Reply with quote

Maybe it went into a collection??
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Evilchicken0



Joined: 12 May 2010
Posts: 2996
Location: London

PostPosted: Thu Apr 28, 2011 12:04 am    Post subject: Reply with quote

oily wrote:
Keep in mind........
A non running SB7 sold for £3700 not so long
Wonder what happened to that Confused

I think that was the one that I saw at the Ace one night. It looked nice enough but ran on 3 then wouldn't start and went home in a van. The guy selling it had a lot of mates with him and I think he owned a scooter shop.
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