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I just installed a set of rebuilt and cleaned carbs and fired it up for the first time today. I turned the pilot screws 1.5 turns. The engine starts right up and runs great but at 5 - 6000 rpm. I tried turning the pilot screw in and out with no change. When I turn the choke on it slows down for a bit but speeds up again. I checked for air leaks and can't find any. I am using an auxiliary gas tank and I have plugged all the vacuum fittings. I re-installed the 110 main jets and removed the rubber pugs as per instructions on the site and installed washers and o-rings on the pilot screw. Any ideas?
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81H Venture - hope to ride summer 2013
79F Cafe Racer at Some Point;
68 CB175 Sloper - Cafe Racer
74 KZ400 - Restoration project nightmare
62 BSA Super Rocket - In Pieces
72 CB100 Super Sport - Not super or sporty but fun -
Just want to mention that there is slack in the throttle cable. I moved the linkage back when it was running and nothing changed.81H Venture - hope to ride summer 2013
79F Cafe Racer at Some Point;
68 CB175 Sloper - Cafe Racer
74 KZ400 - Restoration project nightmare
62 BSA Super Rocket - In Pieces
72 CB100 Super Sport - Not super or sporty but fun -
Idle screw all the way out? The big knob between 2 and 3.
Intake boot clamp getting hooked on the #3 carb lever?
Did you take your butterflies all the way out and end up putting on in crooked?Nate
78 XS11 "Matilda" 2H7 000364
2001 Raptor ACCT, T.C. Fuse Box, TC Bros Forward Controls
Kuryakyn Iso Grips/Throttleboss/Bar End Mirror, Custom Covered Seat
Shinko 712s, HID Headlight, RC Performance Exhaust
Bikemaster Daytona Handlebars, Galfer SS Brake Lines
Barnett HD Clutch Springs, T.C. Spin On Filter Adapter
K+N Air Filter
88 Voyager XII
81 XJ650 MaximComment
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+1 on checking the idle screw setting.Life is what happens while your planning everything else!
When your work speaks for itself, don't interrupt.
81 XS1100 Special - Humpty Dumpty
80 XS1100 Special - Project Resurrection
Previously owned
93 GSX600F
80 XS1100 Special - Ruby
81 XS1100 Special
81 CB750 C
80 CB750 C
78 XS750Comment
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I will check the idle knob. I haven't adjusted it yet. I assume you mean the metal knob underneath between the block and the carb dead center between 2 and 3? I did do a bench sync. I looked underneath and couldn't find something any blockages.81H Venture - hope to ride summer 2013
79F Cafe Racer at Some Point;
68 CB175 Sloper - Cafe Racer
74 KZ400 - Restoration project nightmare
62 BSA Super Rocket - In Pieces
72 CB100 Super Sport - Not super or sporty but funComment
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Try to uninstall your throttle cable and start your bike. I had the same problem 2 days ago. When I tryed with no cable the idle was good. I put the cable back and the problem disappeared.
83 XJ1100
06 FZ1 naked abarthComment
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Ok - I have a spare set of carbs on the bench and looked at how the idle screw works. I could not move the screw on the bike by hand and will try tomorrow with pliers. I assume I screw the knob in to reduce idle speed? Thanks81H Venture - hope to ride summer 2013
79F Cafe Racer at Some Point;
68 CB175 Sloper - Cafe Racer
74 KZ400 - Restoration project nightmare
62 BSA Super Rocket - In Pieces
72 CB100 Super Sport - Not super or sporty but funComment
-
Screw the knob out.....Fast, Cheap, Reliable... Pick any two
'78E original owner - resto project
'78E ???? owner - Modder project FJ forks, 4-piston calipers F/R, 160/80-16 rear tire
'82 XJ rebuild project
'80SG restified, red SOLD
'79F parts...
'81H more parts...
Other current bikes:
'93 XL1200 Anniversary Sportster 85RWHP
'86 XL883/1200 Chopper
'82 XL1000 w/1450cc Buell, Baker 6-speed, in-progress project
Cage: '13 Mustang GT/CS with a few 'custom' touches
Yep, can't leave nuthin' alone...Comment
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Yep, think of it like a normal screw, Righty Tighty, Lefty Loosey. Tighter raises the RPM, looser drops the RPM.Life is what happens while your planning everything else!
When your work speaks for itself, don't interrupt.
81 XS1100 Special - Humpty Dumpty
80 XS1100 Special - Project Resurrection
Previously owned
93 GSX600F
80 XS1100 Special - Ruby
81 XS1100 Special
81 CB750 C
80 CB750 C
78 XS750Comment
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Loosened the idle nut and she purrs like a kitten at 1100 RPM. Thank you for the help. Strange that I cannot remember tightening the nut. Now I will attempt to sync the carbs and the grand daddy of them all - color tuning!81H Venture - hope to ride summer 2013
79F Cafe Racer at Some Point;
68 CB175 Sloper - Cafe Racer
74 KZ400 - Restoration project nightmare
62 BSA Super Rocket - In Pieces
72 CB100 Super Sport - Not super or sporty but funComment
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Interesting how the sync involves the adjustment points and the idle nut. As I tried to sync 1&2 & 3&4 I had to loosen the idle nut because the idle shot up to 3000. It is running very nice after being synced.81H Venture - hope to ride summer 2013
79F Cafe Racer at Some Point;
68 CB175 Sloper - Cafe Racer
74 KZ400 - Restoration project nightmare
62 BSA Super Rocket - In Pieces
72 CB100 Super Sport - Not super or sporty but funComment
-
Good to hear. Always nice when its something easy.Nate
78 XS11 "Matilda" 2H7 000364
2001 Raptor ACCT, T.C. Fuse Box, TC Bros Forward Controls
Kuryakyn Iso Grips/Throttleboss/Bar End Mirror, Custom Covered Seat
Shinko 712s, HID Headlight, RC Performance Exhaust
Bikemaster Daytona Handlebars, Galfer SS Brake Lines
Barnett HD Clutch Springs, T.C. Spin On Filter Adapter
K+N Air Filter
88 Voyager XII
81 XJ650 MaximComment
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