Carburetors Mikuni 36

  • Machine
  • Machine's Avatar Topic Author
  • Offline
  • User
  • Posts: 6
  • Thanks: 0

Carburetors Mikuni 36

02 Mar 2022 06:35 - 02 Mar 2022 06:37
#863067
Hopefully someone’s got advice. I am currently running engine Set up. 1197CC. 13 to 1 compression. 22 WebCam, ported head, big Valves,springs  36 Mikuni flats 
Murdoch transmission and lock up clutch. Dyna 2000,Here’s a $10,000 question. Bike pulls hard Not complaining. I am currently running a 137.5 main jet Needle and Excelerator pump seem to be perfect. Your thoughts on the main jet size. I tried to get a plug reading But running 110 Sunoco hard to get a accurate reading. seems to be close but not set on kill on top end
Thanks in advance
Last edit: 02 Mar 2022 06:37 by Machine.

Please Log in or Create an account to join the conversation.

  • Injected
  • Injected's Avatar
  • Offline
  • User
  • Posts: 1166
  • Thanks: 646

Re: Carburetors Mikuni 36

03 Mar 2022 17:30 - 03 Mar 2022 17:33
#863149
If you just started this engine your not going to see much plug color without putting some miles on, run it rich till the rings are seated then do some plug chops.
If its too dangerous to do the plug chops because of a high MPH situation then take it to a dyno to record a few runs.
Most dyno services have AFR sniffers so they will tell you bang on how its running right thru the RPM range.
Don't jeopardize your safety for some tan plugs. I would rather have black plugs than a speeding ticket or accident any day.

Do you mean 122 WebCam? (.460" lift)
1978 KZ650B2 w 1197cc Z1 engine
1977 KZ650B1 w 750cc Spectre engine
1979 KZ650C3 w 831cc Hot Rod engine
1978 KZ650C2 w 762cc DFI project
1977 KZ650C1 stock restoration project
1978 KZ650B2 modified project
1978 KZ650B2 Injected Drag 831cc
1980 Z1 Custom Frame Drag 1327cc
1981 Z50R Honda tow bike
Last edit: 03 Mar 2022 17:33 by Injected.

Please Log in or Create an account to join the conversation.

  • Calhoun
  • Calhoun's Avatar
  • Offline
  • User
  • Hayabusa= I ride to the strip club in flip flops
  • Posts: 303
  • Thanks: 1

Re: Carburetors Mikuni 36

18 Mar 2022 10:00
#863983
What is it not doing correctly?  What is your average daily temperature and elevation? 
 
80 IT175, 84 XL200, XT250, 95 ST1100 96 xr650l (30k miles),kz1000, KX250 97'
Last and most important 93 KX500.

Please Log in or Create an account to join the conversation.

Powered by Kunena Forum