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Old 09-30-2013, 07:52 PM   #1
SLICKRICKTEN
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need help with 08 gsxr 750

Ok anyone know why removing the secondary butterflies in a 08 gsxr 750 would cause problems it Boggs down dramatically and then bike shuts off when coming to a stop I have done this to many bikes in the past and never had any issues
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Old 10-03-2013, 11:05 PM   #2
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rectifier did to me on my gsxr 750 then started blowing my main fuse
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Old 10-04-2013, 09:21 AM   #3
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Quote:
Originally Posted by SLICKRICKTEN View Post
Ok anyone know why removing the secondary butterflies in a 08 gsxr 750 would cause problems it Boggs down dramatically and then bike shuts off when coming to a stop I have done this to many bikes in the past and never had any issues
Lol. Why would you pull them out anyways. Put them back in. It needs them to idle. The idle is controlled electronically on the newer gsxrs which is why you don't have a idle adjustment.

And second. The fuel mapping on the bike was designed to have them IN not out. I don't really understand why the Japanese manufacturer would engineer and develop a whole second butterfly system and waist 100s of thousands of dollars for no reason.
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Old 10-04-2013, 09:59 AM   #4
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http://www.gsxr.com/showthread.php?t=90540
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Old 10-04-2013, 09:59 AM   #5
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Originally Posted by Romeo36 View Post
Lol. Why would you pull them out anyways. Put them back in. It needs them to idle. The idle is controlled electronically on the newer gsxrs which is why you don't have a idle adjustment.

And second. The fuel mapping on the bike was designed to have them IN not out. I don't really understand why the Japanese manufacturer would engineer and develop a whole second butterfly system and waist 100s of thousands of dollars for no reason.
^^this^^ It's most likely the sensor went bad. You have a sensor for each throttle body.I have 2 extra sensors for the secondary throttle body at home but I already replace the primary sensor 2 times. BTW both of them require adjustments.
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Old 10-07-2013, 11:23 AM   #6
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I've removed the secondary throttle pates on a few bikes, it WILL stumble and run rough down low. However I don't street ride and could care less what happens at 4k rpms, even on the street it shouldn't be a problem if you have throttle control. My dyno says it helps, my bike was also more aggressive up front on the track as well.
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Old 10-07-2013, 04:33 PM   #7
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Thanks for the info I believe my buddies bike has more issues than I thought kept finding one thing after another and has the set valve removed but it was bypassed correctly but now its cutting of between shifting lol
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