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Sync' or Screw?
- TeK9iNe
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20 Sep 2008 06:57 - 20 Sep 2008 06:58 #237890
by TeK9iNe
Motorcycle Shop Owner/Operator
79 Kawie Z1000 LTD
81 Kawie Z1000 CSR
83 Honda VT750C A
85 Kawie GPZ900 A2
86 Zukie GS1150 EG
93 Yamie XV1100 E
Lucky to have rolled many old bikes through my doors
Sync' or Screw? was created by TeK9iNe
I'm trying to wrap my head around this one. I'm sure someone here will have the correct, logical answer!
Do I FIRST: a)Syncronize the carbs with my manometer, or b)Adjust the Pilot Air Screws???
Does adjusting the Pilot air screws increase/decrease vacuum, affecting a syncronization? Or am I completely DAFT?!?! :blink: :silly:
Cheers, and thanks all!
EDIT: The Carbs are mikuni BS34 model.
Do I FIRST: a)Syncronize the carbs with my manometer, or b)Adjust the Pilot Air Screws???
Does adjusting the Pilot air screws increase/decrease vacuum, affecting a syncronization? Or am I completely DAFT?!?! :blink: :silly:
Cheers, and thanks all!
EDIT: The Carbs are mikuni BS34 model.
Motorcycle Shop Owner/Operator
79 Kawie Z1000 LTD
81 Kawie Z1000 CSR
83 Honda VT750C A
85 Kawie GPZ900 A2
86 Zukie GS1150 EG
93 Yamie XV1100 E
Lucky to have rolled many old bikes through my doors
Last edit: 20 Sep 2008 06:58 by TeK9iNe.
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- OKC_Kent
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20 Sep 2008 07:14 #237892
by OKC_Kent
Oklahoma City, OK
78 KZ650 B2 82,000+ miles
Replied by OKC_Kent on topic Sync' or Screw?
Check this out, it says synch then adjust air screws. It says it is for the 650, but it will work for all multi cylinder engines
kzrider.com/index.php?option=com_docman&...d&gid=209&Itemid=108
kzrider.com/index.php?option=com_docman&...d&gid=209&Itemid=108
Oklahoma City, OK
78 KZ650 B2 82,000+ miles
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- TeK9iNe
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20 Sep 2008 07:34 #237899
by TeK9iNe
Motorcycle Shop Owner/Operator
79 Kawie Z1000 LTD
81 Kawie Z1000 CSR
83 Honda VT750C A
85 Kawie GPZ900 A2
86 Zukie GS1150 EG
93 Yamie XV1100 E
Lucky to have rolled many old bikes through my doors
Replied by TeK9iNe on topic Sync' or Screw?
WOW!!! Now that was what I was looking for!
...and I'll bet a few other people too :laugh:
Thanks a Billion man!
Cheers!
TeK9iNe.
...and I'll bet a few other people too :laugh:
Thanks a Billion man!
Cheers!
TeK9iNe.
Motorcycle Shop Owner/Operator
79 Kawie Z1000 LTD
81 Kawie Z1000 CSR
83 Honda VT750C A
85 Kawie GPZ900 A2
86 Zukie GS1150 EG
93 Yamie XV1100 E
Lucky to have rolled many old bikes through my doors
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- wiredgeorge
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20 Sep 2008 11:24 #237919
by wiredgeorge
wiredgeorge Motorcycle Carburetors
Mico TX
www.wgcarbs.com
Too many bikes to list!
Replied by wiredgeorge on topic Sync' or Screw?
I personally would adjust the idle mixture before synchronizing. If the bike isn't idling as well as it should, then vacuum can be down a tad. To adjust, screw the air screws all the way in and then 1.5 turns out. Turn them back and forth about a half turn to find the highest idle speed by ear. Don't be surprised if one or more of the screws have no effect. If this is the case, leave at 1.5 turns out. Once you have the idle mixture optimized, go ahead and sync the carbs with a manometer. I have had issues occasionally where the vacuum was low and couldn't be equalized to the other cylinders when a carb had the idle mixture grossly misadjusted.
wiredgeorge Motorcycle Carburetors
Mico TX
www.wgcarbs.com
Too many bikes to list!
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