dialing in BS34s

  • jonarmstrong
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dialing in BS34s

28 May 2014 20:01
#634378
I've added a lot of new parts to my bike and am having trouble dialing the carbs in. I'm running 40 pilots and 135 mains I had 130 mains and they were too lean so during the swap I was convinced by a friend to leave the metering plugs out. He said it would keep the pilots from starving. The bike ran great to about 1/8 throttle but seemed to load up on top. I put them back in and it runs great on top but it studders on that 1/8 on bottom. Not sure how to get the beat of both worlds. Seems like with the metering plugs out it would get more gas to the pilots so do I need to up the size? Thanks
82 Kz1000 gpz1100 cams dyna ignition kerker k&n

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  • Patton
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Re: dialing in BS34s

29 May 2014 05:40 - 29 May 2014 05:41
#634411
jonarmstrong wrote: I've added a lot of new parts to my bike and am having trouble dialing the carbs in. I'm running 40 pilots and 135 mains I had 130 mains and they were too lean so during the swap I was convinced by a friend to leave the metering plugs out. He said it would keep the pilots from starving. The bike ran great to about 1/8 throttle but seemed to load up on top. I put them back in and it runs great on top but it studders on that 1/8 on bottom. Not sure how to get the beat of both worlds. Seems like with the metering plugs out it would get more gas to the pilots so do I need to up the size? Thanks
With pods fitted, it's difficult to tune for best performance throughout the entire carb range, especially with CV carbs.

While not a perfect resolve, some folks report at least some partial success by installing an aftermarket carb kit that includes a different shaped jet needle.

Good Fortune! :)
1973 Z1
KZ900 LTD
Last edit: 29 May 2014 05:41 by Patton.

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  • jonarmstrong
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Re: dialing in BS34s

29 May 2014 05:48
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I'm sorry, I guess I need to change my signature. I installed a factory airbox w a k&n and a kerker header w a yoshi pipe. I also did the dyna coil swap. I've been in these carbs a hundred times and just can't figure it out
82 Kz1000 gpz1100 cams dyna ignition kerker k&n

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