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Mikuni Jet Issue ?
- BIGKEVIN
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1976 KZ900
2006 ZX6R
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- Motor Head
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- FIX UP YOUR BIKE RIGHT AND CHEAP
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1982 KZ1000LTD K2 Vance & Hines 4-1 ACCEL COILS Added Vetter fairing & Bags. FOX Racing rear Shocks, Braced Swing-arm, Fork Brace, Progressive Fork Springs RT Gold Emulators, APE Valve Springs, 1166 Big Bore kit, RS34's, GPZ cams.
1980 KZ550LTD C1 Stock SOLD Miss it
1979 MAZDA RX7 in the works, 13B...
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- BIGKEVIN
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1976 KZ900
2006 ZX6R
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- gd4now
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- Denco where did you go?
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Please note that I said that is a starting point and not the one and only setting.
1977 KZ650 B1
Pods and Denco header
OLD KAW OWNERS SMILE ALOT
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- BIGKEVIN
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1976 KZ900
2006 ZX6R
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- Patton
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No, a clear inline fuel filter normally appears less than "full" when the engine is running.BIGKEVIN wrote: ...should the fuel filter be full of fuel when the bike is running ? ....
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1973 Z1
KZ900 LTD
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- zoro
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"No!" Patton addressed this...I run an EMGO large plastic/metal filter with 5/16 clear lines...Filter always appears to have air in the line...Dont trip because although you see air, you dont see the "volume of flow" of the fuel...Cheers Oh, one other thing...I have "Sudco/Mikuni" tuning manual that "advises against" trying to vacuum sync "VM" carbs because once the carb caps are removed while the engine is running, the TRUE vacuum signals are compromised...A good bench sync is all thats necessary for VM carbs. If your hell bent on vacuum syncing VM carbs...Smear the slides with "dielectric" or silicon grease to seal them against the carb/slide bodies to prevent a false vacuum signal reading. The reason your bike was high idling was because most 29mm smoothies have worn carb slides that leak vacuum when the caps are off.BIGKEVIN wrote: When I get time again, I will start adjusting the air screws. Now I need to know about the fuel in the filter.
GHOSTRIDER,1980,KZ1000ST
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- zoro
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zoro wrote:
"No!" Patton addressed this already...I run an EMGO large plastic/metal filter with 5/16 clear lines...Filter always appears to have air in the line...Dont trip because although you see air, you dont see the "volume of flow" of the fuel...Cheers!... Oh, one other thing...I have a "Sudco/Mikuni" tuning manual that "advises against" trying to vacuum sync "VM" carbs because once the carb caps are removed while the engine is running, the TRUE vacuum signals are compromised...A good bench sync is all thats necessary for VM carbs. If your hell bent on vacuum syncing VM carbs...Smear the slides with "dielectric" or silicon grease to seal them against the carb/slide bodies to prevent a false vacuum signal reading. The reason your bike was high idling was because most 29mm smoothies have worn carb slides that leak vacuum when the caps are off.BIGKEVIN wrote: When I get time again, I will start adjusting the air screws. Now I need to know about the fuel in the filter.
GHOSTRIDER,1980,KZ1000ST
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- BIGKEVIN
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1976 KZ900
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- Patton
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If the end of the idle screw loses contact before sufficiently reducing rpm, it's likely that the bench sync was improperly performed.BIGKEVIN wrote: Thanks for the replie Patton and Zoro. I did notice something else on the carbs last night that I need advice on. The part that the idle adjustment screw touches when it is turned in does not touch anything when the idle adjustment screw is completely removed. Should that part, which sets the idle, be making contact with something ? I have not been able to find the part names yet.
When bench syncing, the idle screw must be set to where there's ample thread remaining to further lower the throttle slides from their bench-synced positions, as is usually required when later performing the actual engine-running sync.
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1973 Z1
KZ900 LTD
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- BIGKEVIN
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- Patton
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BIGKEVIN wrote: I will take the carbs back off hopefully tomorrow. If there is already a gap between where the idle screw screws in and the part that moves to set the idle, wouldnt screwing the idle screw into the part cause the idle to be higher ? Does anyone have a diagram of the Mikuni 29 mm carbs with a parts breakdown so I can be more specific about the parts ?
If there is already a gap between where the idle screw screws in and the part that moves to set the idle, wouldnt screwing the idle screw into the part cause the idle to be higher ? --
No, because the individual throttle height adjustments are used to achieve bench sync.
Attachment smoothbore29sudcomanual.jpg not found
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1973 Z1
KZ900 LTD
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