Fj40 Asian carb primary and secondary nozzle question (1 Viewer)

[KPruitt37]

I am currently rebuilding a carburetor for a 1977FJ 40 and I’m watching pinheads YouTube rebuild video and he talked about the primary and secondary nozzle having different rings. The secondary has a single ring. The primary has two rings or vice versa and you can tell in the picture that the carburetor has two rings and the nozzles look identical. is this normal or did somebody change us out in the past?

 

[bdog75]

Check out the Resources section for a FSM. Your top view is showing venturies.

 

[KPruitt37]

Another question, the slow jet on the primary side is stamped as 75, and the secondary is 100 I believe. Is this a normal slow jet configuration for a 1977 2f?

 

[bdog75]

• Here is some info I found online @ toyota partsdeal.com. There's more info there on jet sizes (most are discontinued) but maybe you can measure your jets to see what u have. I've rebuilt several carbs and have not had any issues when complete. I suggest you lay everything out so you know where it goes back and not over think it unless you think a hack was in there. Is this rig new to you? Did it ever run right? Follow the FSM when tuning to a T. Also I have a set of Vessel Impacta #2 #3 JIS screwdrivers, They have a built in impact feature for removing the screws and are correct for toyota screws. I am not endorsing toyotapartsdeal.com
  Jet, 2nd Main
  
  90999-42138
  Jet, 2nd Main
  • ID=1.38 HIGH ALTITUDE SPEC.
  • Fitting Vehicle Options: 2F.. FJ40.. USA
  • Part Name Code: 21253
  • Replaced By: 90999-41138
  $8.02$5.74
  
  Add To Cart
• 
  90999-42159
  Jet, 2nd Main
  • ID=1.59 CALIFORNIA SPEC.
  • Fitting Vehicle Options: 2F.. FJ55.. USA
  • Part Name Code: 21253
  
  
• 
  90999-42171
  Jet, 2nd Main
  • ID=1.71
    ID=1.71 CALIFORNIA SPEC.
  • Fitting Vehicle Options: 2F.. FJ40, 55.. USA; 2F.. FJ40.. USA
  • Part Name Code: 21253
  
  
• 
  90999-42200
  Jet, 2nd Main
  • ID=2.00 CALIFORNIA SPEC.
  • Fitting Vehicle Options: 2F.. FJ55.. USA; 2F.. FJ55
  • Part Name Code: 21253
  
  
• 
  90999-42230
  Jet, 2nd Main
  • ID=2.30
    ID=2.30 CALIFORNIA SPEC.
  • Fitting Vehicle Options: 2F.. FJ40, 55; 2F.. FJ40, 55.. USA; 2F.. FJ40.. USA; 2F..