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Carbs, Carbs, Oh those Carbs!!!
- kilgore
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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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- TeK9iNe
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Took the old gal for a test drive the other day. Things went pretty well 'cept for the whole runnin' thing, lol! She was sputterring at low rpm accelleration, then hanging at mid-range (not returning to idle). I had cleaned the carbs earlier but have since learned about the choke system and don't think I got that quite right. To my knowledge, everything is stock (87 KZ1000 Police). Can't find much info on the Mikuni Round Slide carbs with throttle plates(?). I believe throttle cables and idle adjust thumbscrew were properly set. Any help is greatly appreciated, thanks!
I would tend to agree with timebomb33 here...
Take the carbs off and do a complete teardown and thorough cleaning. Then reinstall them, and everything from the airbox tip to the exhaust tip AIR TIGHT.
Maybe this will help... 87 KZ1000P Mikuni BS34 CV carb diagram:
Good luck!
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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- TeK9iNe
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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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- kilgore
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- Skyman
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- 1978 KZ1000-B2 LTD 1982 KZ1000-M2 CSR
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Thanks you guys! One big problem - <i> every single screw </i> at carb caps is frozen solid. Tried soaking in bolt remover oil and even a heat gun - no go. Gonna slap carbs back on and see what happens. I'm waiting on air box hoses and intake manifolds from Z1. I'd really rather not drill out all 16 screws at carb caps, so I'm keeping my fingers crossed!
Can you get a grip on the screws with some vise grips? It will bung up the heads, so you'll need to replace them, but they're easy to replace.
West Linn, OR
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- 650ed
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1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
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- bill_wilcox100
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That's why the screw drivers in the bikes tool kit always seem easier to use than the stuff from the local hardware store and why they don't damage the screw heads.
Someone else can pipe in with the official name for the two standards.
Best of success,
Bill
1977 KZ650-B1 (Stock)
Upgrades:
- Dyna S Electronic Ignition (DS2-2)
- Dyna 3 Ohm Coils (DC1-1)
- Coil Repowering Mod
- Progressive Springs Front & Rear
- Saddlemen Seat Cover
- New Metallic Red Re-Paint & Repro Badges.
Montreal, Canada
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- kilgore
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I bit the bullet and went ahead and drilled and EZ outed 14 screws ( 2 actually came off w/screwdriver). Needle jets were a little funky but all orifices were pretty clear. Cleaned everything up nice.
Now the hard part - waiting for UPS shipment of parts from Z1!
Thanks again everybody for the advice/help.
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- Skyman
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- 1978 KZ1000-B2 LTD 1982 KZ1000-M2 CSR
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You realize that the Japanese Philips screw driver is a different standard from the European Philips screw driver standard... close mind you, but no cigar.
That's why the screw drivers in the bikes tool kit always seem easier to use than the stuff from the local hardware store and why they don't damage the screw heads.
Someone else can pipe in with the official name for the two standards.
Best of success,
Bill
I believe you are referring to the JIS screw. They are usually identified by a raised (or indented) dot on the head face.
West Linn, OR
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- Patton
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Good Luck!
1973 Z1
KZ900 LTD
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- bill_wilcox100
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"Japanese Standards Association (JSA) promotes industrial standardization and quality control through development and publication of the Japanese Industrial Standards (JIS)..."
Patton wrote:
May wish to consider possibility of replacing with Allen screws.
Good Luck!
I bought a set of carb screws from Z1 and they worked fine. But looking back, I wish I had gone in the Stainless Steel Hex Head screw direction with mine. Maybe because KZR'ers are in and out of their carbs more often and the Hex Head is more user friendly both on-the-bike and on-the-bench.
Anyone gone in the SS Hex direction and if so what supplier, sizes and prices did you use? I know they will be much more expensive than the original Philips (star) screws but screws are not the most expensive things anyways.
Best of success,
Bill
1977 KZ650-B1 (Stock)
Upgrades:
- Dyna S Electronic Ignition (DS2-2)
- Dyna 3 Ohm Coils (DC1-1)
- Coil Repowering Mod
- Progressive Springs Front & Rear
- Saddlemen Seat Cover
- New Metallic Red Re-Paint & Repro Badges.
Montreal, Canada
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