Spitting noises - blow back
- Gorham
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it's also dragging ass when you try to really open up the throttle.
i'm sure i'll have to take the carbs back off to do something, but what should i be looking for?
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- Kawickrice
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- After Monday & Tuesday, even the calendar says WTF
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73 Kawasaki Z1
07 HD CVO Ultra Classic
82 Suzuki GS 1100
74 Yamaha RD 350 (My two stroke toy)
77 Kawasaki KZ 650B-1 (My putt around bike)
80 Indian Moped (My American Iron)
1
Long Gone
75 Suzuki GT550
74 GT 380
79 RD 400 Daytona Special
72 Honda CL 175
74 Honda QA 50
Tampa FL
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- Gorham
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What's causing this though? Is it an air problem or a fuel problem?
Spark plugs misfiring?
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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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- Kawickrice
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- After Monday & Tuesday, even the calendar says WTF
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73 Kawasaki Z1
07 HD CVO Ultra Classic
82 Suzuki GS 1100
74 Yamaha RD 350 (My two stroke toy)
77 Kawasaki KZ 650B-1 (My putt around bike)
80 Indian Moped (My American Iron)
1
Long Gone
75 Suzuki GT550
74 GT 380
79 RD 400 Daytona Special
72 Honda CL 175
74 Honda QA 50
Tampa FL
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- TeK9iNe
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- What did you do!?!
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Generally, if your putting a demand on the bike (accellerating) and it bogs down, its too rich. If you have hesitation/erratic at idle, its lean. Not always, but most times...
Swap your Main Jets out for a smaller/leaner set, and see what happens. If it improves, then go leaner again. When it stops improving with a change, go back to the previous jets. Same thing for going larger jets.'
Jet it correctly. Set your mixture screws with an accurate tach or vacuum guage. Balance your carbs.
GL!
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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- Gorham
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All my intake and air box boots look good. My bike didn't have the stock air emission cleaner so i just capped off the inlets on the valve cover and carbs.
I've pulled and cleaned the carbs at least 3 times in the past year. new accelerator pump kit, new gaskets, new float needle. I don't have leakage anywhere when shes running or not.
I do need to synch the carbs still. i did the bench synch with the wire by the book. i don't have a vacuum guage or a fuel level guage for the float height though. i just saw the homeade version of the vacuum synch though. pretty awesome. where can i get one of those float height levels that's not like $60. I searched on ebay but didn't find one. i'm sure my float heights are off. i can't get an accurate reading with the clear tube method. it's incredibly frustrating when you don't have a proper work space. (mine's my driveway and out of the back of my van for now)
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- 650ed
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1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
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- 650ed
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1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
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- Kawickrice
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i'm sure my float heights are off. i can't get an accurate reading with the clear tube method. it's incredibly frustrating when you don't have a proper work space. (mine's my driveway and out of the back of my van for now)
Take some carb holders and mount them on a piece of wood and level them (the ones in the pic are level its me using the camera thats out of level)
I use a chalk bottle for carpenters chalk to fill the bowls with gas. Then I use the clear tube to drain it back into the bottle. Its a tedious job sometimes but it has to be done. The clear tube is on the 2nd carb.
73 Kawasaki Z1
07 HD CVO Ultra Classic
82 Suzuki GS 1100
74 Yamaha RD 350 (My two stroke toy)
77 Kawasaki KZ 650B-1 (My putt around bike)
80 Indian Moped (My American Iron)
1
Long Gone
75 Suzuki GT550
74 GT 380
79 RD 400 Daytona Special
72 Honda CL 175
74 Honda QA 50
Tampa FL
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- Gorham
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I tried adjusting the backing plate to get more movement but I still can't get any fluctuation on the meter.
I still have to get the timing right with the light, but that's the next step... I'd like to get the one before it done right first.
My carbs are clean as a whistle. I think this is a major problem with this blow-back.
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- timebomb33
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1973 z1 2-1974z1-a,2-1975z1-b dragbikes1015cc+1393cc, 1977kz1000,1978kz1000,1981kz1000j, 1997 zx-11, 2000 z12r,1428turbo nitrous pro-mod and a shit load of parts thats all for now leader sask.,CANADA
I THINK MY POWERBAND BROKE
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