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SB6r it's now 90% sorted Many Thanks

 
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Horseheed



Joined: 31 Aug 2018
Posts: 23
Location: Co Durham

PostPosted: Wed Sep 05, 2018 9:54 pm    Post subject: SB6r it's now 90% sorted Many Thanks Reply with quote

Thank you all for the help over the last week or so, my SB6r is now up and running , not 100% as the carbs want balancing but at least I can use it. A post by Lorenzo said cut a piece of cloth ( t shirt ) same size as the air filter foam and place it between the foam and top of the air filter box . I don't know how or why but it's got me on the road again, so for now I will use it and try and figure it out over the winter. Once again thank you all. Cheers Nigel
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brian



Joined: 22 Aug 2011
Posts: 2699
Location: QLD, Australia

PostPosted: Wed Sep 05, 2018 10:23 pm    Post subject: Reply with quote

To my thinking... the piece of cloth will reduce the amount of airflow into the engine, which will in turn make the mixture more rich. So, if my thinking is correct, you need to add more fuel to the circuit in the rev range that is struggling.

As I said, Im no tuner by any means, but this is how Id interpret it? Any more knowledgeable engine tuners out there feel free to add your 2c
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Current motorcycles - '99 Bimota DB4, '96 Bimota SB6, '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
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brian



Joined: 22 Aug 2011
Posts: 2699
Location: QLD, Australia

PostPosted: Wed Sep 05, 2018 10:26 pm    Post subject: Re: SB6r it's now 90% sorted Many Thanks Reply with quote

Horseheed wrote:
Thank you all for the help over the last week or so, my SB6r is now up and running , not 100% as the carbs want balancing but at least I can use it.


Nigel, balancing the carbs is well worth the effort and not hard to do at all with a good carburettor synchronising tool. Some say that they should be balanced after every time you fiddle with them.

Glad its running better
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Current motorcycles - '99 Bimota DB4, '96 Bimota SB6, '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
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