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hesitation/lag from idle to 4k
- comppro2k7
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- roy-b-boy-b
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1979 LTD Street Fighter.1977 KZ1000
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- toolman5774
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- Always up for a ride!
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Doug
Second Generation Z1 Owner
1975 Z1B 900 w/ 53K miles
K&N Pods
Kerker 4-1
King/Queen LTD Seat w/ Sissy bar and luggage Rack
2009 ZG1400 (Concours non-ABS)
7k
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- otakar
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74 Z1-A stock
76 KZ-900 Totaly stock vice MAC pipe
77 KZ-1000A stock
78 Z1-R 100%MINT 500 original Mi.
78 Z1-R Yoshi 1103 kit stage 1 cams Yoshi pipe. Etc
79 KZ-1300 (1400)
80 KZ-1300
81 Scratch built GPz1150R
82 KZ1000
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- 650ed
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1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
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- comppro2k7
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- bountyhunter
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That shows your main jets are clear and they are the correct size. That is the range where the vacuum pistons are up and you are running wide open on the main jets.around 4k it pulls like crazy up to red line.
comppro2k7 wrote:
The pilot jets and vacuum piston needle position are primarily responsible for this range. I would clean the carbs and make sure the pilots are clear. Also, check the jet size.I'm getting a hesitation from idle to 4k rpms.
If the pilots are clear and the right size, play with needle position last. Raising the needle a notch will significantly increase throttle response in the 2k to 4k range. If you go too rich, it will bog down in the mid range.
1979 KZ-750 Twin
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- comppro2k7
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- bountyhunter
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On my 750 twin, the pilot screws run about 2T out. Note, mine are fuel screws so farther out means richer. If yours are air screws, further out means leaner.how many turns out from seat for the pilot jets ? mine are at 1 1/4 turns out, the manual says 2 turns out but its for non us spec.
1979 KZ-750 Twin
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- comppro2k7
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