Welcome, Guest
Username: Password: Remember me
Forgot your password? Forgot your username? Create an account
Forum
Technical Forums
Carburetor
What’s this spring lever under the carbs?
  • Page:
  • 1
  • 2

TOPIC:

What’s this spring lever under the carbs? 19 Jul 2023 00:19 #887400

  • treyhova
  • treyhova's Avatar Topic Author
  • Offline
  • User
  • Posts: 7
  • Thank you received: 0
Anybody know what this is? And what it does? Spring lever upside down under the carbs. Pushes up but springs back down. 

Attachment not found

Please Log in or Create an account to join the conversation.

What’s this spring lever under the carbs? 19 Jul 2023 06:16 #887402

  • KZQ
  • KZQ's Avatar
  • Offline
  • Administrator
  • Walking Behind the Corn May Not Be All That!
  • Posts: 4751
  • Thank you received: 1282

Anybody know what this is? And what it does? Spring lever upside down under the carbs. Pushes up but springs back down. 

Attachment not found


 
Did you use the "Back" button while composing your post? If you did that's why the software lost your image. Please try again, this time without the back button.
Please let me know if I'm mistaken.
Bill/KZQ
www.KZ1300.com
Riders:
1968 BSA 441 Shooting Star, 1970 BSA 650 Lightning, 1974 W3, 1976 KZ900, 1979 KZ750 Twin, 1979 KZ750 Twin Trike, 1981 KZ1300, 1982 KZ1100 Spectre, 2000 Valkyrie, 2009 Yamaha Roadliner S. 1983 GL 1100
Projects:
1985 ZN1300

Please Log in or Create an account to join the conversation.

What’s this spring lever under the carbs? 19 Jul 2023 06:38 #887404

  • Wookie58
  • Wookie58's Avatar
  • Away
  • Moderator
  • Posts: 3315
  • Thank you received: 1878
Difficult without a picture but sounds like an accelerator pump ?
The following user(s) said Thank You: Nessism

Please Log in or Create an account to join the conversation.

What’s this spring lever under the carbs? 19 Jul 2023 09:55 #887407

  • treyhova
  • treyhova's Avatar Topic Author
  • Offline
  • User
  • Posts: 7
  • Thank you received: 0

Attachment not found

Please Log in or Create an account to join the conversation.

What’s this spring lever under the carbs? 19 Jul 2023 10:56 #887410

  • Wookie58
  • Wookie58's Avatar
  • Away
  • Moderator
  • Posts: 3315
  • Thank you received: 1878
Looks like you are having issues attaching your pics, follow the below process
Click "attachments" - click "add file" - select your pic - wait for the green text to appear - click "insert all" then submit and you should be good to go

 
Attachments:

Please Log in or Create an account to join the conversation.

What’s this spring lever under the carbs? 19 Jul 2023 11:23 #887412

  • treyhova
  • treyhova's Avatar Topic Author
  • Offline
  • User
  • Posts: 7
  • Thank you received: 0
Is it working?

Attachments:

Please Log in or Create an account to join the conversation.

What’s this spring lever under the carbs? 19 Jul 2023 11:28 #887413

  • TexasKZ
  • TexasKZ's Avatar
  • Offline
  • Platinum Member
  • Posts: 7260
  • Thank you received: 2088
Accelerator pump. Twisting the throttle should move the lever. To see if it is working, remove a filter and peek inside as you twist the throttle. You should see a small squirt of fuel.
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough
The following user(s) said Thank You: treyhova

Please Log in or Create an account to join the conversation.

What’s this spring lever under the carbs? 19 Jul 2023 14:22 #887419

  • martin_csr
  • martin_csr's Avatar
  • Offline
  • User
  • Posts: 7998
  • Thank you received: 1630
Just in case. You should see a small squirt of fuel... in each carburetor. see the manual for other details.

Please Log in or Create an account to join the conversation.

Last edit: by martin_csr.

What’s this spring lever under the carbs? 19 Jul 2023 22:16 #887441

  • gd4now
  • gd4now's Avatar
  • Offline
  • User
  • Denco where did you go?
  • Posts: 1282
  • Thank you received: 379
From the pic posted it appears that this set of carbs has both a pump and a sensor.  As I understand it one of the things the sensor does is only allow fuel out of the pump if the engine is running (providing vacuum) 

 
1977 KZ650 B1
Pods and Denco header

This is my Z

OLD KAW OWNERS SMILE ALOT
Attachments:
The following user(s) said Thank You: Nessism, TexasKZ, treyhova

Please Log in or Create an account to join the conversation.

Last edit: by gd4now.

What’s this spring lever under the carbs? 20 Jul 2023 13:44 #887453

  • treyhova
  • treyhova's Avatar Topic Author
  • Offline
  • User
  • Posts: 7
  • Thank you received: 0
Thanks for all the great info fellas! I just picked up a 79 KZ650... B3 I think... it's black with the green and yellow striping. Pretty good condition overall but the engine is sounding a bit off, and I suspect it's running lean overall - so was wondering if that lever connected to the carbs had anything to do with it.

Attachment not found

Please Log in or Create an account to join the conversation.

What’s this spring lever under the carbs? 21 Jul 2023 09:36 #887475

  • gd4now
  • gd4now's Avatar
  • Offline
  • User
  • Denco where did you go?
  • Posts: 1282
  • Thank you received: 379
A 650 with accel pump with sensor, I had read/heard that some of them did have both but had not seen one or worked on one.  The pic you posted showed pod filters not air box, so I would think some jetting changes from stock would be required.  Any idea what jets are in it now?
1977 KZ650 B1
Pods and Denco header

This is my Z

OLD KAW OWNERS SMILE ALOT

Please Log in or Create an account to join the conversation.

What’s this spring lever under the carbs? 21 Jul 2023 09:58 #887476

  • treyhova
  • treyhova's Avatar Topic Author
  • Offline
  • User
  • Posts: 7
  • Thank you received: 0
No idea what jets are in currently. Any suggestions?

Please Log in or Create an account to join the conversation.
  • Page:
  • 1
  • 2
Forum
Technical Forums
Carburetor
What’s this spring lever under the carbs?
Powered by Kunena Forum
PDM Custom Fabrications
Half Evil Customs