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just got an SB8R! help me get it running! (no fuel or spark)
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SB8_#34



Joined: 16 Dec 2021
Posts: 24

PostPosted: Sat Dec 18, 2021 9:06 pm    Post subject: Reply with quote

Bimota Spirit says they have one used SB8R ECU, but he doesn't know if it was working or not.

super nice guy though, said he would just ship it to me so i could try it.

also ordered a new front brake switch from him since mine is dead.
new fuel sending unit showed up today that i found on ebay since the wires on mine were damaged.

couple random questions:
Is the SB8R supposed to have a clutch switch??
my bike has the mounting for it, but it's not mentioned in the manuals


also what is supposed to be mounted with the little bolt that goes in the notch at the front of the seat? the bolt is just sitting there with nothing attached underneath
EDIT: found the rubber block that mounts under here to help retain the gas tank.





Last edited by SB8_#34 on Fri Feb 04, 2022 2:23 pm; edited 1 time in total
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SB8R Tuner



Joined: 29 Nov 2010
Posts: 83

PostPosted: Sun Dec 19, 2021 6:08 am    Post subject: Reply with quote

Correct, you should see a ground signal on the black-cyan wire when you supply power to the ecu. I'm in the USA also. Yes, Bob is a great guy, I know him personally. He can fix you up!
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Bimota SB8R
Bimota V-Due
Bimota SB8R
Suzuki 1988 GSXR-750
Suzuki 1989 GSXR-750R
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Bud977



Joined: 03 Mar 2013
Posts: 525
Location: Sydney

PostPosted: Sun Dec 19, 2021 9:32 pm    Post subject: Reply with quote

I'm in Sydney and have never heard of Vectriq, and I've been around bikes a long time in this area. It seems odd that they don't even have an address on their website. I'd be cautious when they don't provide that.

That being said, I've saved their details and I'll check them out when I need some electrics tested.

If anyone contacts them and wants to send something to them, I'll do what I can to confirm their address is legit.
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Jaguar



Joined: 15 Sep 2017
Posts: 268
Location: Albany NY

PostPosted: Sun Dec 19, 2021 10:07 pm    Post subject: Reply with quote

I would reach out to Bimota Classic Parts too.
They have been doing a fair bit of electronic repair on other bikes.
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Bimota (Tesi 1D 904SR, DB2, DB4, SB6,SB6R, SB8R, SB8K Santa Monica) Ducati (1000SS, Monster S4, 999R) Aprilia (RSV Mille R Haga) Honda (CL125s and 70s Chopper)
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SB8_#34



Joined: 16 Dec 2021
Posts: 24

PostPosted: Mon Dec 20, 2021 12:49 am    Post subject: Reply with quote

thanks!
i'm going to reach out to Bimota Classic Parts tomorrow.
it looks like they might actually have an ECU for sale? doesn't have the same part number as the catalog, but it was called an injection ECU for an SB8R

ok, i found the parts diagrams and confirmed there is NOT a clutch switch.
Also found that little rubber block that the screw in front of the seat goes to.

another mystery: i cannot locate the the flasher relay (all signals work, but they do flash fast. not LEDs either) or kickstand relay though.
it looks like something should hang here behind the headlight, but the wires for the turn signal go right into the main harness and into the frame.


i installed the new fuel probe. the new one had a slightly different connector and didn't fit through the hole in the tank! i hade to trim a bit of plastic off the sides of it.

ordered a new front brake light switch from Bimota Spirit and he has a used ECU, but doesn't know if it works. he said he'll send it to me to try though.
fingers crossed.


Last edited by SB8_#34 on Fri Feb 04, 2022 2:23 pm; edited 1 time in total
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Marcus1974



Joined: 13 Aug 2020
Posts: 3
Location: Assen, Holland

PostPosted: Mon Dec 27, 2021 11:25 pm    Post subject: Help Reply with quote

I did read the whole topic, looks a lot like a problem i had last summer, carried out a lot of work over winter.
Build up the bike(sb6)all okay but didn’t run, it crancked all the lights working but didn’t run after 3 dayssearching and sleepless nights my last option was jump start with a car battery.
The bike ran at the first click on the startbutton.
Solution was the battery was strong enough to cranck but was below 11 volts and then the cdi doesn’t have a good power supply and doesn’t give a spark to the sparkplugs because the coils are not energized enough.
I hope this helps to get the beast running.
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Bimota BB1 1995, Bimota SB6 1995, Bimota sb6r 1997, Matchless G80S 1953, Triumph Tiger 800 2011
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SB8_#34



Joined: 16 Dec 2021
Posts: 24

PostPosted: Tue Feb 01, 2022 2:20 pm    Post subject: Reply with quote

just wanted to update this thread to say my bike is running!

a friendly forum member repaired the ECU for me.
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SB8_#34



Joined: 16 Dec 2021
Posts: 24

PostPosted: Fri Feb 04, 2022 2:25 pm    Post subject: Reply with quote

back together and took it for a test ride earlier this week. now it's tucked away for another month or so

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SB8_#34



Joined: 16 Dec 2021
Posts: 24

PostPosted: Mon May 01, 2023 8:21 pm    Post subject: Reply with quote

SB8_#34 wrote:
just wanted to update this thread to say my bike is running!

a friendly forum member repaired the ECU for me.


i just realized i never gave this member credit!

SB8R Tuner came to the rescue and repaired my ECU. he saved me from having an expensive paper weight and now i can ride and enjoy the bike as it was meant to be.
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brian



Joined: 22 Aug 2011
Posts: 3769
Location: Australia

PostPosted: Wed May 10, 2023 2:54 am    Post subject: Reply with quote

Good news Exclamation
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'99 DB4 #104, '96 SB6 #1165, '94 DB2 J #652, '99 DB4 #088, '08 VTX1800, '93 ZXR750R M1, '95 ZXR750, '95 ZXR750 Race Bike, '94 CBR400rr NC29 Race Bike, '94 CB250, '49 BSA C10 250, '61 BSA A10 650, '89 ZXR750, '91 Ducati 851
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