Results 1 to 3 of 3
  1. #1

    Superjet carbs jetting

    Hello,

    I am looking for some help please!! I just modified my engine and don't know how to tune my carbs...

    Here is what I have :

    - Stock mikuni BN38 carbs with stock jetting (130 main - 70 pilot - don't know what the spring load is)
    - Prok air filter with adapters
    - Factory Modified B pipe, with dual cooling and ported exhaust manifold
    - ADA girdled head with 35cc domes
    - V force 3 reed valves

    Can someone please help me choose the best jetting setup for my carbs please ??

    Thanks a lot!
    Xavier.


  2. #2
    mjh3ides's Avatar
    Join Date
    Jul 2007
    Location
    Jupiter, Florida
    Posts
    6,795
    +1
    2,010
    Attached is a diagram I pulled off Wamilton's site for the dual cooling mod, & it has his jetting recommendation at the bottom. You'll probably have better luck posting on this forum with SJ questions because there aren't many stand-up riders on the Hulk:
    http://www.x-h2o.com/
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	WamMod.jpg 
Views:	1669 
Size:	68.7 KB 
ID:	256264  

  3. #3
    Thank you! I already had that diagram, but this jetting specs is only for the pipe mod... I think I must install some bigger jets, as the v force reeds and modified intake will allow more air to enter the engine... And more air means more fuel needed..

    Good idea!! I'll ask that question in the x-h2o forum

    Thanks a lot!
    Xavier.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Carb jet size??
    By waterburn in forum 2-Stroke Performance
    Replies: 0
    Last Post: 07-02-2007, 10:22 PM
  2. IR Carb jetting and primer - 1200R
    By snowrunner in forum Yamaha PWC Performance (2-stroke)
    Replies: 0
    Last Post: 04-28-2007, 07:13 AM
  3. Any one have a set of pro carb jets?
    By Rodneyae in forum Polaris Open Discussion
    Replies: 10
    Last Post: 02-27-2007, 12:58 AM
  4. Carb. Jetting Help
    By jsealonso in forum Yamaha PWC Performance (2-stroke)
    Replies: 4
    Last Post: 01-22-2007, 01:17 AM
  5. Lowell porting-what carb jetting???
    By VOODOO in forum Yamaha PWC Performance (2-stroke)
    Replies: 11
    Last Post: 07-26-2006, 05:10 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •