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1986 Honda CB700SC — Alimentation en carburant

Fuel-system choices for the 1986 CB700SC include float components, jet selections, tank supports and petcock service parts. Match the actual carburetors and valve before ordering. Earlier-year carburetor kit applications should not be extended automatically to this motorcycle or to a replacement carburetor bank.

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Consultation en cours Alimentation en carburant

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Honda CB throttle sleeve 53141-300-010

Honda CB Throttle Sleeve ~ Replaces 53141-300-010

$9.95 USD
02-2462
Refresh the throttle feel on your Honda with this Nylon Throttle Sleeve, a replacement for OEM Ref. #53141-300-010 with exceptionally broad fitment across the...
Honda CB1000 CB900 CB750 CB700 ultimate performance main jet kit

Honda CB1000 / CB900 / CB750 / CB700 Ultimate Performance Main Jet Kit

$64.95 USD
48-2112
Cover every tuning scenario with this Ultimate Performance Main Jet Kit. Includes a total of 44 main jets for Keihin carbs. Use this jet...
Honda CB1100 CB1000 CB900 CB750 CB700 carb float needle 16155-413-751

Honda CB Carb Float Needle ~ Replaces 16155-413-751

$8.95 USD
48-5011
Replace your DOHC CB float needle (only) with this Float Needle, replacing OEM #16155-413-751.Key Features• Float needle (only)• Replaces OEM #16155-413-751• Honda part name:...
Honda CB1000 CB900 CB750 pilot jet set size 35 (pk 4) 99103-GY6-0350

Honda CB Pilot Jet Set ~ Size #35 (Pk/4) ~ Replaces 99103-GY6-0350

$14.95 USD
73-1004
Refresh your low-speed performance with this Pilot Jet Set of 4 in size #35, replacing OEM #99103-GY6-0350.Pilot jets handle your idle and low-speed operation...
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Honda CB700SC CB650SC CB550SC carb float 16013-KR3-980

Honda Nighthawk Carb Float with Pin ~ Replaces 16013-KR3-980

$19.95 USD
07-4650
Rebuild your Nighthawk's carburetor with this Carb Float with Pin, replacing OEM #16013-KR3-980 / #16013-MA6-003. A critical float for proper fuel metering on the...
Honda CB front fuel tank rubber cushion 17611-KE8-000

Front Fuel Tank Rubber Cushion ~ Replaces Honda OEM 17611-KE8-000

$5.50 USD
27-5520
This aftermarket front fuel tank rubber cushion replaces Honda OEM 17611-KE8-000 on the listed Honda CB-series applications. It mounts to the frame and supports...
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Honda CB700 CB650 CB550 CB450 fuel petcock repair kit

Honda CB700 / CB650 / CB550 / CB450 Fuel Petcock Repair Kit

$27.95 USD
20-0020
Rebuild your Nighthawk fuel petcock with this Fuel Petcock Repair Kit. Includes a diaphragm, spring, and 2 O-rings.Key Features• Fuel petcock repair kit• Includes...
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Honda CB700 CB650 CB550 fuel tank front rubber cushion 17611-KE8-000

Honda CB Genuine Honda 17611-KE8-000 Fuel Tank Front Rubber Cushion ~ Replaces 17611-KE8-000

$17.95 USD
99-5145
This genuine Honda front fuel tank rubber cushion mounts to the frame and supports the front of the gas tank on select classic Honda...
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1986 Honda CB700SC · Fuel Metering & Tank Parts Buying guide

Trace fuel delivery before buying carburetor parts

The 1986 CB700SC uses four carburetors and a vacuum-operated fuel valve. A supply restriction at the tank, a worn float valve and a leaking bowl drain can produce different faults. Follow the fuel path before choosing a petcock kit, float or carburetor sealing parts.

Parts to consider

Honda Nighthawk Carb Float with Pin ~ Replaces 16013-KR3-980 Carburetor float with pinFloat and pin replacing references 16013-KR3-980 and 16013-MA6-003.Voir la pièce Honda CB Carb Float Needle ~ Replaces 16155-413-751 Float needleNeedle-only replacement for reference 16155-413-751.Voir la pièce Honda CB700 / CB650 / CB550 / CB450 Fuel Petcock Repair Kit Fuel-petcock repair kitContains a diaphragm, spring and two O-rings for the listed Nighthawk petcock.Voir la pièce

Start with the tank valve and strainers

The original petcock opens its fuel passage when vacuum is applied. No flow with the engine stopped and the lever ON does not by itself establish a fault. Honda tests the diaphragm with a hand vacuum pump and checks the strainers when flow is restricted. The selected kit supplies a diaphragm, spring and two O-rings; it does not replace a damaged valve body or establish that the strainers are clear.

Check float level before changing fuel metering

Honda gives an 18.5 mm float-level specification, measured with the float tang just contacting the valve, and instructs replacement of an out-of-specification float assembly. Inspect the valve for grooves or nicks as well. A float comes with its pivot pin; the separate float needle and the metering jets perform different jobs. After carburetor work, check throttle and choke adjustment, synchronization and idle speed.

Buying questions

Why is there no fuel flow with the original petcock turned ON?

The valve is vacuum operated, so ON alone does not open its diaphragm. Check it using Honda’s hand-pump test and inspect the supply and strainers if flow remains restricted. Conversely, fuel flowing through the disconnected outlet without applied vacuum calls for diaphragm inspection.

Should I bend the float tang to correct an incorrect fuel level?

Honda specifies checking 18.5 mm with the tang just contacting the float valve, then replacing the float assembly if it is outside specification. The CB700SC procedure does not call for bending the tang. Also inspect the mating valve and seat rather than assuming the float alone causes the problem.

Can the listed 1984–85 rebuild kit be assumed to fit a 1986?

No. Its product body and vehicle application both stop at 1985. The float, float needle and petcock kit shown here explicitly include 1986, but that does not extend another kit’s range. Identify the fitted carburetors and obtain an exact application before ordering an earlier-year kit.

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