Need help with needle jet insertion
- jwinatlanta
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Need help with needle jet insertion
04 May 2026 15:28
Disassembled my Keihin cv34's for a complete drip and compressed air cleaning. That part is done. Now with reassembly I am not feeling good about re-inserting the needle jets into the carb bodies.
Seems they want to go in sideways. When I think i have them straight I go to tap them in with a flat punch it takes more effort than I think it should. Am I just too scared to whack it or am I missing something
Seems they want to go in sideways. When I think i have them straight I go to tap them in with a flat punch it takes more effort than I think it should. Am I just too scared to whack it or am I missing something
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- Nessism
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Re: Need help with needle jet insertion
04 May 2026 15:37
Sounds like they are misaligned during insertion.
Ed
Carb O-ring Kits : www.kzrider.com/forum/14-vendor-forum/62...rburetor-o-ring-kits
www.kzrider.com/forum/faq-wiki/618026-new-owner-things-to-know
1981 KZ750E2
www.kzrider.com/forum/11-projects/604901...z750e-project-thread
Carb O-ring Kits : www.kzrider.com/forum/14-vendor-forum/62...rburetor-o-ring-kits
www.kzrider.com/forum/faq-wiki/618026-new-owner-things-to-know
1981 KZ750E2
www.kzrider.com/forum/11-projects/604901...z750e-project-thread
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- jwinatlanta
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Re: Need help with needle jet insertion
04 May 2026 15:43
Any suggestions on how to get them in straight?
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- Nessism
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Re: Need help with needle jet insertion
Yesterday 17:15
Drop the needle jet into the carb passage. Use a tool, like a drift punch, to support it while you turn the carb right side up. Look down the carb from the top, slide removed of course, and guide the needle jet up, so it properly aligns with the hole in the carb body. Lightly tap the jet, making sure it doesn't cock and tilt, and push it into place.
Ed
Carb O-ring Kits : www.kzrider.com/forum/14-vendor-forum/62...rburetor-o-ring-kits
www.kzrider.com/forum/faq-wiki/618026-new-owner-things-to-know
1981 KZ750E2
www.kzrider.com/forum/11-projects/604901...z750e-project-thread
Carb O-ring Kits : www.kzrider.com/forum/14-vendor-forum/62...rburetor-o-ring-kits
www.kzrider.com/forum/faq-wiki/618026-new-owner-things-to-know
1981 KZ750E2
www.kzrider.com/forum/11-projects/604901...z750e-project-thread
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- jwinatlanta
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Re: Need help with needle jet insertion
Yesterday 08:51
Maybe my age is catching up with me??? I've tried your method and it helps a good bit with alignment!!
Now is the "push it in" part. I push. I tap. I HIT IT! It doesn't seem to want to go in, I can hit it harder but I don't want to.
Maybe the jet is upside down? I don't think so. The roundish end is headed into the venturi,
Am I just OLD???
Now is the "push it in" part. I push. I tap. I HIT IT! It doesn't seem to want to go in, I can hit it harder but I don't want to.
Maybe the jet is upside down? I don't think so. The roundish end is headed into the venturi,
Am I just OLD???
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- Nessism
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Re: Need help with needle jet insertion
Yesterday 09:35Maybe my age is catching up with me??? I've tried your method and it helps a good bit with alignment!!
Now is the "push it in" part. I push. I tap. I HIT IT! It doesn't seem to want to go in, I can hit it harder but I don't want to.
Maybe the jet is upside down? I don't think so. The roundish end is headed into the venturi,
Am I just OLD???
You have it upside down. Round end facing float bowl.
Ed
Carb O-ring Kits : www.kzrider.com/forum/14-vendor-forum/62...rburetor-o-ring-kits
www.kzrider.com/forum/faq-wiki/618026-new-owner-things-to-know
1981 KZ750E2
www.kzrider.com/forum/11-projects/604901...z750e-project-thread
Carb O-ring Kits : www.kzrider.com/forum/14-vendor-forum/62...rburetor-o-ring-kits
www.kzrider.com/forum/faq-wiki/618026-new-owner-things-to-know
1981 KZ750E2
www.kzrider.com/forum/11-projects/604901...z750e-project-thread
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- jwinatlanta
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Re: Need help with needle jet insertion
Yesterday 12:45
THANK YOU NESS I'm back together. I still have much to do.
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