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{{Motorcycle
The '''Honda CB125''' was a 122 [[cc]] [[motorcycle]] manufactured by [[Honda]] from 1971-1985.  
|name            = Honda CB125
|photo            = CB125SS.jpg
|aka              = Twin
|manufacturer    = Honda
|production      = 1968 - 1970
|predecessor      =
|successor        =
|class            = Road
|engine          = 124cc Single overhead cam twin cylinder two valves
|bore_stroke      = 44mm x 41mm
|compression      = 9:4:1
|top_speed        =65 mph
|zero_to_60      =
|quarter_mile    =
|power            = 15 bhp @ 11,000 rpm
|torque          =  1.05kgm @ 9000 rpm
|fuel_system      = twin [[Keihin]] 22mm slide type carburetors
|air_filter      =
|ignition        =
|spark_plug      =
|battery          =
|transmission    =
|final_drive      =
|front_sprocket  =
|rear_sprocket    =
|frame            =
|suspension      =
|brakes          =
|front_tire      =
|rear_tire        =
|front_tire_psi  =
|rear_tire_psi    =
|rake_trail      =
|wheelbase        =
|length          = 1975mm
|width            = 745mm
|height          = 990mm
|ground_clearance =
|seat_height      =
|dry_weight      =
|wet_weight      = 110kg
|fuel_capacity    =
|oil_capacity    =
|oil_filter      =
|recommended_oil  =Honda GN4 10W-40
|fuel_consumption =
|competition      =
|related          = [[Honda CB100]]<br />[[Honda CL100]]<br />[[Honda SL100]]<br />[[Honda CD125]]<br />[[Honda SL125]]<br />[[Honda TL125]]<br />[[Honda CB125S]]<br />[[Honda CB160]]
|value            =
|msrp            =
|manuals          = [[:File:Honda CB125 Twin CB160 Workshop Service Repair Manual 1966-69.pdf]]


}}
The '''Honda CB125''' was an 125[[cc]] inline twin cylinder motorcycle produced by [[Honda]] from 1968 to 1970.  Honda also produced a single cylinder version starting in 1970 that is known as the [[Honda CB125S]].


== Specification of [[Honda|Honda]] CB125SS model year 1967 ==
The CB125 came in two major versions the '71-75 "S" version and the '76 and later "J" version although the bikes in the US retained the S designation.  It features an overhead camshaft (OHC) engine with a 9500 rpm redline and offers 100 mpg. It could comfortably maintain speeds of 55 mph and had a top speed of around 65 mph. The [[engine]] could last tens of thousands of miles with only minimal attention; however, the oil had to be changed regularly (700 miles) to prevent premature wear of the camshaft bearings. The newer "J" model sported a two piece head, 124cc displacement, and a larger carburetor, but it did not perform as well as the earlier models.




*Engine type: Single overhead cam twin cylinder two valves
*Bore and stroke: 44mm x 41mm
*Compression ratio 9:4:1
*carburetor: twin [[Keihin]] 22mm slide type
*Weight: 110kg
*Dimensions: 1975mm x 745mm x 990mm
*Displacement: 124cc
*Power 15 bhp @ 11,000 rpm
*Torque 1.05kgm @ 9000 rpm
*Tyre sizes: Front 2.50 x 18/rear 2.75 x 18




==1968-70==
==1968-70==
[[Image:honda_Cb125-a.jpg|left|thumb|Honda CB125]]
[[Image:honda_Cb125-a.jpg|left|thumb|Honda CB125]][[Image:honda_Cb125-b.jpg|left|thumb|Honda CB125]][[Image:honda_Cb125-c.jpg|left|thumb|Honda CB125]][[Image:honda_Cb125-d.jpg|left|thumb|Honda CB125]]
[[Image:honda_Cb125-b.jpg|left|thumb|Honda CB125]]
[[Image:honda_Cb125-c.jpg|left|thumb|Honda CB125]]
[[Image:honda_Cb125-d.jpg|left|thumb|Honda CB125]]
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These CB125 Hondas were sold around 1968-70. They look very much like [[Honda CB175K|CB175]] models of that era.
These CB125 Hondas were sold around 1968-70. They look very much like CB175 models of that era.
 
==1973==
[[Image:honda_Cb125s0.jpg|left|thumb|1973 Honda CB125]]
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The CB125S0 was sold in 1973 and came in two available colors: Candy Topaz Orange or Candy Peacock Green. The gas tank stripe was white and black. The fenders were chrome. The front brake was a drum brake. The instrument was only a speedometer. The ignition used breaker points. The engine was a 122cc OHC single cylinder with a one-piece cylinder head. The transmission was a 5-speed. The serial number began CB125S-1021922.
 
* Spark Plug: [[NGK D8EA]]
 
==1974==
[[Image:honda_Cb125s1.jpg|left|thumb|1974 Honda CB125]]
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The CB125S1 was sold in 1974 and came in just one color: Candy Topaz Orange. The gas tank had a black panel with white pinstripes. The diamond-shaped side cover wing emblem was red. The front brake was a mechanical actuated disc. The fenders were chrome. The instruments now had both a speedometer and a tachometer. The ignition used breaker points. The engine was a 122cc OHC single cylinder with a one-piece cylinder head. The transmission was a 5-speed. The serial number began CB125S-1021922.
 
==1975==
[[Image:honda_Cb125s2.jpg|left|thumb|1975 Honda CB125]][[Image:1975-Honda-CB125S2-Blue-357-0.jpg|left|thumb|1975 Honda CB125S2 in Blue]][[Image:1975-Honda-CB125S2-Blue-357-1.jpg|left|thumb|1975 Honda CB125S2 in Blue]][[Image:1975-Honda-CB125S2-Blue-357-2.jpg|left|thumb|1975 Honda CB125S2 in Blue]][[Image:1975-Honda-CB125S-Blue-4025-0.jpg|left|thumb|1975 Honda CB125S in Blue]][[Image:1975-Honda-CB125S-Blue-4025-1.jpg|left|thumb|1975 Honda CB125S in Blue]][[Image:1975-Honda-CB125S-Blue-4025-2.jpg|left|thumb|1975 Honda CB125S in Blue]][[Image:1975-Honda-CB125S-Blue-4025-3.jpg|left|thumb|1975 Honda CB125S in Blue]]
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The CB125S2 was sold in 1975 and came in just one color: Candy Riviera Blue. The "CB125" side cover emblem was white and yellow. The chrome rear shock cover was deleted. The fenders were chrome. The front brake was a mechanical actuated disc. The instruments now had both a speedometer and a tachometer. The ignition used breaker points. The engine was a 122cc OHC single cylinder with a one-piece cylinder head. The transmission was a 5-speed. The serial number began CB125S-1021922.
 
==1976==
[[Image:1976_honda_Cb125s.jpg|left|thumb|1976 Honda CB125]]
<br style="clear: left"/>
 
The CB125S'76 was sold in 1976 and came in just one color: Aquarius Blue. The "HONDA" gas tank decal was red with a white outline. The "125S" side cover decal was white and red. The seat color was dark brown. The instruments had a speedometer  but no tachometer. The fenders were chrome. The front brake was a mechanical actuated disc. The ignition used breaker points. The engine was a 124cc OHC single cylinder with a 2-piece cylinder head linked to a 5-speed transmission. The serial number began CB125S-1300009.
 
==1978==
[[Image:1978-honda-125-cb.jpg|left|thumb|1978 Honda CB125]]
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The CB125S'78 was sold in 1978 and came in only one color: Fire Red. The gas tank stripe was orange, yellow, white, and black. The "CB125S" side cover decal was yellow and white. The fenders were chrome. The front brake was a mechanical actuated disc. The instruments had just a speedometer. The ignition used breaker points. The engine was a 124cc OHC single cylinder with a 2-piece cylinder head linked to a 5-speed transmission. The serial number began CB125S-1500003.
 
==1979==
[[Image:1979_honda_Cb125s.jpg|left|thumb|1979 Honda CB125]]
<br style="clear: left"/>
 
The CB125S'79 was sold in 1979 and came in one color: Light Ruby Red. The gas tank stripe was red and black. The "CB125S" side cover decal was red and black. The front brake had a single leading shoe. The fenders were chrome. The instruments had just a speedometer. The ignition used breaker points. The engine was a 124cc OHC single cylinder with a 2-piece cylinder head linked to a 5-speed transmission. The serial number began CB125S-5000001.
 
 
==1980==
<gallery>
Image:1980_honda_Cb125s.jpg|1980 Honda CB125
Image:1980-Honda-CB125S-Red-0.jpg|1980 Honda CB125S in Light Ruby Red
Image:1980-Honda-CB125S-Red-1.jpg|1980 Honda CB125S in Light Ruby Red
Image:1980-Honda-CB125S-Red-2.jpg|1980 Honda CB125S in Light Ruby Red
Image:1980-Honda-CB125S-Red-3.jpg|1980 Honda CB125S in Light Ruby Red
Image:1980-Honda-CB125S-Red-4.jpg|1980 Honda CB125S in Light Ruby Red
</gallery>
The CB125S'80 was sold in 1980 and came in one color: Light Ruby Red. The "HONDA" decal and stripe were gold with a black outline. The "CB125S" side cover decal was gold and red with a black outline. The fenders were also Red. The turn signal housings were black plastic. The instruments had just a speedometer. The ignition used breaker points. The engine was a 124cc OHC single cylinder with a 2-piece cylinder head linked to a 5-speed transmission. The serial number began JC04-5100001.
 
==1981==
[[Image:1981_honda_Cb125s-81.jpg|left|thumb|1981 Honda CB125]]
<br style="clear: left"/>
 
The CB125S'81 was sold in 1981 and came in just one color: Black. The gas tank stripes were red and gold. The "HONDA" and "CB125S" decals were solid red. The instruments had just a speedometer. The turn signal housings were black plastic. The electrical system used a CD ignition. The engine was a 124cc OHC single cylinder with a 2-piece cylinder head linked to a 5-speed transmission. The serial number began JH2JC040*BK700005.
 
[[Media:1981-Honda-Motorcycles.pdf|1981 Honda Motorcycle Full-Line Brochure]]
 
==1982==
[[Image:1982_honda_Cb125s.jpg|left|thumb|1982 Honda CB125]]
<br style="clear: left"/>
 
The CB125S'82 was sold in 1982 and came in just one color: Candy Imperial Blue. The gas tank stripes were light blue and dark blue. The "HONDA" and "CB125S" decals were gold. The instruments had just a speedometer. The turn signal housings were black plastic. The electrical system used a CD ignition. The engine was a 124cc OHC single cylinder with a 2-piece cylinder head linked to a 5-speed transmission. The serial number began JH2JC040*CK800002.
 
* Spark Plug changed to: [[NGK DR8ES-L]]
 
==1984==
[[Image:cb125.jpg|400px]]
[[Image:1984_honda_Cb125s.jpg|left|thumb|1984 Honda CB125]][[Image:1984_honda_Cb125s_1.jpg|left|thumb|1984 Honda CB125]]
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The CB125S'84 was sold in 1984 and came in just one color: Turuna Red. The fuel tank pinstripes were white and dark blue. The wing decal was gray and white. The headlight was round. The instruments had just a speedometer. The turn signal housings were black plastic. The electrical system was now a 12 volt.
*Engine: 123cc single-cylinder, OHC four-stroke
*Ignition: Solid state CD ignition
*Transmission: Wide-ratio five-speed
*Seat: Long plush seat for two-up riding
*Wheelbase: 1270mm (50 in.)
*Seat height: 760mm (29.9 in.)
*Dry weight: 99 kg (218.2 lb)
*The serial number began 9C2JC1303ER010001.
 
==1985==
[[Image:1985_honda_Cb125s.jpg|left|thumb|1985 Honda CB125]]
<br style="clear: left"/>
 
The CB125S'85 was sold in 1985 and came in one color: Turuna Red. The tank, side cover, and rear fender stripes were blue and white. The "HONDA" and "CB125S" decals were white. The headlight was rectangular. The instruments had just a speedometer. The turn signal housings were black plastic. The electrical system was now a 12 volt. The high tension electrical system used a CD ignition. The engine was a 124cc OHC single cylinder with a 2-piece cylinder head linked to a 5-speed transmission. The serial number began 9C2JC1308FR110001.
 


==References==
{{reflist}}


{{Honda CB}}
{{Honda}}
[[Category:Honda motorcycles|CB125]]
[[Category:Honda motorcycles|CB125]]
[[Category:Honda CB series]]
{{motorcycle-stub}}

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