1980 Honda CB650C Custom Exhaust Gaskets & Studs

The exhaust service selection for the 1980 Honda CB650C Custom focuses on port gaskets and mounting studs. Decide how many sealing points you are renewing, then check the stud and flange-nut condition so the order matches the work planned.

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Honda CB kick stand stopper rubber 95011-61000

Honda CB Kick Stand Stopper Rubber ~ Replaces 95011-61000

$2.95 USD

07-4624

1967 Honda CL450K0 Motorcycle Parts 1968 Honda CB350K0 Motorcycle Parts 1969 Honda CB175K3 Motorcycle Parts 1969 Honda CB750K Motorcycle Parts 1969 Honda CL450K2 Motorcycle Parts 1970 Honda CB100K0 Motorcycle Parts 1970 Honda CB175K4 Motorcycle Parts 1970 Honda CB350K2 Motorcycle Parts 1970 Honda CB450K Motorcycle Parts 1970 Honda CB750K Motorcycle Parts 1970 Honda SL350K0 Motorcycle Parts 1971 Honda CB100K1 Motorcycle Parts 1971 Honda CB175K1 Motorcycle Parts 1971 Honda CB350K3 Motorcycle Parts 1971 Honda CB450K Motorcycle Parts 1971 Honda CB500K Four Motorcycle Parts 1971 Honda CB750K Motorcycle Parts 1972 Honda CB100K2 Motorcycle Parts 1972 Honda CB175K6 Motorcycle Parts 1972 Honda CB350K4 Motorcycle Parts 1972 Honda CB450K Motorcycle Parts 1972 Honda CB500K Four Motorcycle Parts 1972 Honda CB750K Motorcycle Parts 1973 Honda CB125S0 Motorcycle Parts 1973 Honda CB175K7 Motorcycle Parts 1973 Honda CB350G Motorcycle Parts 1973 Honda CB500K Four Motorcycle Parts 1973 Honda CB750K Motorcycle Parts 1974 Honda CB125S1 Motorcycle Parts 1974 Honda CB200 Motorcycle Parts 1974 Honda CB550K Motorcycle Parts 1974 Honda CB750K Motorcycle Parts 1974 Honda CL360K0 Motorcycle Parts 1975 Honda CB125S2 Motorcycle Parts 1975 Honda CB200T Motorcycle Parts 1975 Honda CB400F Motorcycle Parts 1975 Honda CB500T Twin Motorcycle Parts 1975 Honda CB550F Supersport Motorcycle Parts 1975 Honda CB550K Motorcycle Parts 1975 Honda CB750K Motorcycle Parts 1975 Honda CL360K1 Motorcycle Parts 1976 Honda CB200TK0 Motorcycle Parts 1976 Honda CB400F Motorcycle Parts 1976 Honda CB500T Twin Motorcycle Parts 1976 Honda CB550F Supersport Motorcycle Parts 1976 Honda CB550K Motorcycle Parts 1976 Honda CB750A Motorcycle Parts 1976 Honda CB750K Motorcycle Parts 1977 Honda CB400F Motorcycle Parts 1977 Honda CB550F Supersport Motorcycle Parts 1977 Honda CB550K Motorcycle Parts 1977 Honda CB750A Motorcycle Parts 1977 Honda CB750K Motorcycle Parts 1978 Honda CB550K Motorcycle Parts 1978 Honda CB750A Motorcycle Parts 1978 Honda CB750F Motorcycle Parts 1978 Honda CB750K Motorcycle Parts 1979 Honda CB650 Motorcycle Parts 1979 Honda CB750F Motorcycle Parts 1979 Honda CB750K Motorcycle Parts 1979 Honda CB750L Motorcycle Parts 1980 Honda CB650 Motorcycle Parts 1980 Honda CB650C Custom Motorcycle Parts 1980 Honda CB750F Motorcycle Parts 1980 Honda CB750K Motorcycle Parts 1980 Honda CB900C Motorcycle Parts 1981 Honda CB650 Motorcycle Parts 1981 Honda CB650C Custom Motorcycle Parts 1981 Honda CB750F Motorcycle Parts 1981 Honda CB750K Motorcycle Parts 1981 Honda CB900C Motorcycle Parts 1981 Honda CB900F Motorcycle Parts 1982 Honda CB650 Motorcycle Parts 1982 Honda CB650SC Nighthawk Motorcycle Parts 1982 Honda CB750F Motorcycle Parts 1982 Honda CB750K Motorcycle Parts 1982 Honda CB900C Motorcycle Parts 1982 Honda CB900F Motorcycle Parts 1983 Honda CB1100F Motorcycle Parts 1994 Honda CB1000 Motorcycle Parts 1995 Honda CB1000 Motorcycle Parts Honda CB Exhaust Gaskets & Mounting Hardware Honda CB Exhaust Systems, Mufflers & Hardware Honda CB Foot Pegs, Shifters, Kickstarters & Stands Honda CB Frame & Body Parts Honda CB Rubber Components & Mounting Dampers Honda CB100 Motorcycle Parts by Model & Year Honda CB1000 Motorcycle Parts by Model & Year Honda CB100K Motorcycle Parts (1970–1972) Honda CB125 Motorcycle Parts by Model & Year Honda CB125S Motorcycle Parts (1973–1985) Honda CB175K Motorcycle Parts (1969–1973) Honda CB200 Motorcycle Parts by Model & Year Honda CB200T / CB200TK0 Motorcycle Parts (1975–1976) Honda CB350 Motorcycle Parts by Model & Year Honda CB350K Motorcycle Parts (1968–1972) Honda CB400 Motorcycle Parts by Model & Year Honda CB400F Motorcycle Parts (1975–1977) Honda CB450 Motorcycle Parts by Model & Year Honda CB450K Motorcycle Parts (1965–1974) Honda CB500 Motorcycle Parts by Model & Year Honda CB500K Motorcycle Parts (1971–1973) Honda CB500T Motorcycle Parts (1975–1976) Honda CB550 Motorcycle Parts by Model & Year Honda CB550F Motorcycle Parts (1975–1977) Honda CB550K Motorcycle Parts (1974–1978) Honda CB650 Motorcycle Parts (1979–1982) Honda CB650 Motorcycle Parts by Model & Year Honda CB650C Custom Motorcycle Parts (1980–1981) Honda CB650SC Nighthawk Motorcycle Parts (1982–1985) Honda CB750 DOHC Parts (1979–1982) Honda CB750 Motorcycle Parts by Model & Year Honda CB750 SOHC Parts (1969–1978) Honda CB750A Hondamatic Motorcycle Parts (1976–1978) Honda CB750F Motorcycle Parts (1975–1982) Honda CB750K Motorcycle Parts (1969–1982) Honda CB900 Motorcycle Parts by Model & Year Honda CB900C Custom Motorcycle Parts (1980–1982) Honda CB900F Supersport Motorcycle Parts (1981–1982) Honda CL360K Motorcycle Parts (1974–1975) Honda CL450K Motorcycle Parts (1967–1974) Honda SL350K Motorcycle Parts (1969–1973) Series 10: CB72-CB250 (59-85) Series 4: CB900-1100 (80-83) Series 5: CB650 (79-82) Series 6: CB500-CB550 (71-78) Series 7: CB400-CB450 (65-86) Series 8: CB350-CB400 (72-77) Series 9: CB350-CB360 (69-75)

Replace a worn kick stand stopper with this Kick Stand Stopper Rubber "A", a direct replacement for OEM #95011-61000. Exceptionally broad fitment across the...

Honda CB900 CB650 CB550 exhaust headpipe gasket (each) 18212-634-000

Honda CB Exhaust Headpipe Gasket (Each) ~ Replaces 18212-634-000

$3.58 USD

17-2813

1978 Honda CB400A Motorcycle Parts 1978 Honda CB400TI Motorcycle Parts 1978 Honda CB400TII Motorcycle Parts 1979 Honda CB400TIIZ Motorcycle Parts 1979 Honda CB400TIZ Motorcycle Parts 1979 Honda CB650 Motorcycle Parts 1980 Honda CB400TA Motorcycle Parts 1980 Honda CB650 Motorcycle Parts 1980 Honda CB650C Custom Motorcycle Parts 1981 Honda CB400TB Motorcycle Parts 1981 Honda CB650 Motorcycle Parts 1981 Honda CB650C Custom Motorcycle Parts 1982 Honda CB450SC Nighthawk Motorcycle Parts 1982 Honda CB450T Hawk Motorcycle Parts 1982 Honda CB650 Motorcycle Parts 1982 Honda CB650SC Nighthawk Motorcycle Parts 1983 Honda CB450SC Nighthawk Motorcycle Parts 1983 Honda CB550SC Nighthawk Motorcycle Parts 1983 Honda CB650SC Nighthawk Motorcycle Parts 1984 Honda CB650SC Nighthawk Motorcycle Parts 1985 Honda CB450SC Nighthawk Motorcycle Parts 1985 Honda CB650SC Nighthawk Motorcycle Parts 1986 Honda CB450SC Nighthawk Motorcycle Parts 2002 Honda CB900F 919 Motorcycle Parts 2003 Honda CB900F 919 Motorcycle Parts 2004 Honda CB900F 919 Motorcycle Parts 2005 Honda CB900F 919 Motorcycle Parts 2006 Honda CB900F 919 Motorcycle Parts 2007 Honda CB900F 919 Motorcycle Parts Honda CB Exhaust Gaskets & Mounting Hardware Honda CB Exhaust Systems, Mufflers & Hardware Honda CB400 Motorcycle Parts by Model & Year Honda CB400T Hawk Motorcycle Parts (1978–1981) Honda CB450 Motorcycle Parts by Model & Year Honda CB450SC Nighthawk Motorcycle Parts (1982–1986) Honda CB550 Motorcycle Parts by Model & Year Honda CB550SC Nighthawk Motorcycle Parts (1983–1984) Honda CB650 Motorcycle Parts (1979–1982) Honda CB650 Motorcycle Parts by Model & Year Honda CB650C Custom Motorcycle Parts (1980–1981) Honda CB650SC Nighthawk Motorcycle Parts (1982–1985) Honda CB900 Motorcycle Parts by Model & Year Honda CB900F 919 Motorcycle Parts (2002–2007) Series 4: CB900-1100 (80-83) Series 5: CB650 (79-82) Series 6: CB500-CB550 (71-78) Series 7: CB400-CB450 (65-86)

Replace one exhaust port gasket on your CB650, CB400, CB450, or modern CB900F with this Exhaust Port Gasket, 1 piece, replacing OEM #18212-634-000 /...

1979-82 Honda CB650 / CB650C Exhaust Stud Set

$34.95 USD

Restore your exhaust system’s performance and reliability with this complete Exhaust Stud Set for your Honda CB650 or CB650C. Designed to meet OEM specs,...

Honda CB900 CB650 CB550 exhaust headpipe gaskets (pk 10) 18212-634-000

Honda CB Exhaust Headpipe Gaskets ~ (Pk/10) ~ Replaces 18212-634-000

$27.95 USD

17-3813

Stock up on exhaust port gaskets for your CB650, CB400, CB450, or modern CB900F with this 10-pack, replacing OEM #18212-634-000 / #18291-236-000 / #18291-MN4-920.Key...

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1980 Honda CB650C Custom · Exhaust Service Parts Buying guide

Plan the sealing parts and mounting hardware together

Individual exhaust gaskets suit a small repair order, while the ten-pack supplies workshop stock. The stud set contains eight studs and eight flange nuts, making its contents a separate choice from the gasket quantity.

Parts to consider

Honda CB Exhaust Headpipe Gasket (Each) ~ Replaces 18212-634-000

Individual exhaust port gasketOne gasket replacing references 18212-634-000, 18291-236-000 and 18291-MN4-920.View part

Honda CB Exhaust Headpipe Gaskets ~ (Pk/10) ~ Replaces 18212-634-000

Ten-pack exhaust port gasketsTen exhaust port gaskets with the same replacement references as the individual gasket.View part

1979-82 Honda CB650 / CB650C Exhaust Stud Set

Exhaust stud and flange-nut setEight exhaust studs and eight flange nuts, listed for the 1980–81 CB650C Custom.View part

Choose gasket packaging for the job

The individual gasket and ten-pack share replacement references 18212-634-000, 18291-236-000 and 18291-MN4-920. Choose the package that matches your planned seal replacements and spare-stock needs. The ten-pack is a quantity option, rather than a different exhaust application.

Assess the fastening parts before assembly

The CB650C stud set contains eight studs and eight flange nuts. Inspect the existing mounting hardware before starting exhaust work, and refer to the correct manual for the service procedure and tightening requirements. Keep gasket selection separate from the hardware set.

Buying questions

Can I reuse a port gasket after removing the headpipe?

Honda’s Common Service Manual calls for a new exhaust-pipe gasket whenever the pipe is removed from the engine. Include a replacement for each opened port connection and use the model-specific manual for assembly and tightening.

Will a new stud set fix damaged cylinder-head threads?

No. Inspect the head threads before installing replacement studs. The stud supplier calls for proper extraction methods for seized hardware rather than forcing it in the aluminum head, followed by the specified installation depth and even flange-nut tightening. Resolve damaged threads before relying on new hardware.

Can I choose these for an aftermarket exhaust?

Check the connection at the cylinder head and the exhaust manufacturer’s requirements first. The listed CB650C application helps identify the original connection, but it does not establish every modified header or flange arrangement.

Not sure which part you need?

Send your model and year, plus photos of your existing part and any changes to the original setup.

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Honda motorcycle parts

Honda CB Kick Stand Stopper Rubber ~ Replaces 95011-61000

Honda CB Exhaust Headpipe Gasket (Each) ~ Replaces 18212-634-000

1979-82 Honda CB650 / CB650C Exhaust Stud Set

Honda CB Exhaust Headpipe Gaskets ~ (Pk/10) ~ Replaces 18212-634-000