Description
This Mikuni RS34 carburetor Kit suits Honda CB750, CB900 and CB1100 with stock engines. They will breathe a whole new lease of life into your machine with an up to 25% increase in power, whilst making it perform and operate as it should with no hesitations or flat spots.
You will very quickly realize that the expense of a rebuild of your old worn OEM carbs can far exceed the cost of these new units and unfortunately as with many rebuilds now days you only have the option in many cases of gambling with very poor quality aftermarket parts. Considering this and if intending to ride and enjoy your motorcycle it makes good sense to retire your OEM carbs into the cupboard and step up to a set of RS’s.
Before rushing in and ordering please firstly check your carb spacing and carbie sizes for compatibility. These are not suited for downdraft engines.
This Mikuni kit comes in three fitment options– with the following carb centre to centre spacing’s for direct fitment to Honda CB750. CB900 and CB1100 and will adapt to the stock air-box (55mm dia.) and engine inlet rubbers.
Option 1- Suits 1979 thru 1983 models. Outlet Diameter at the engine side is 44mm
A= 80mm (spacing centre to centre between carb 1 & 2)
B= 100mm (carb 2 & 3)
C= 80mm (carb 3 & 4)
Option 2- Suits 1984 and later models. Outlet Diameter at the engine side is 40mm. If using the OEM air-box note that these carbs are 4mm shorter front to back than the OEM units. There is an oil line mod required for carb bowl clearance on some models shown in the picture gallery.
A= 72mm (spacing centre to centre between carb 1 & 2)
B= 88mm (carb 2 & 3)
C= 72mm (carb 3 & 4)
Option 3- Suits Honda CB500 four. Only available with Outlet Diameter at the engine side of 40mm, 55mm at the air-cleaner end and 100mm front to back.Â
A= 77mm (spacing centre to centre between carb 1 & 2)
B= 77mm (carb 2 & 3)
C= 77mm (carb 3 & 4)
Pilot Jet: VM28/486-17.5, Needle: 9DZH1, Needle Jet: P-4 (568 Series), Main Jet: N100.604-120/130
Your stock throttle cables will not match to these carbs, where we have available in the RS accessories page either our road bike throttle and cable assembly (KRS-001) or a Quick action 1/4 turn throttle and cable kit (PPQA40K)
You can also buy separately either POD filters or Velocity stacks which have no form of filter in them (15, 30,50 and 75mm long) for racing
Kenny Smith (verified owner) –
The carbs worked awesome as they were received, without any changes needed. Quick response to emails. Fast shipping to the USA.
Steve (verified owner) –
Bought Thursday, delivered Friday, fitted Saturday I honestly couldn’t be happier with the service and the product my bike runs perfect straight out of the box the people at mikunioz have been more than helpful in helping me with my decision thank you very much keep up the great work