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Stage 3 jet kit, is it neccessary or can I forego the cost

  • Thread starter Thread starter Anonymous
  • Start date Start date
A

Anonymous

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What exactly is in a stage 3 kit? I see a drill bit, jets, needles and I know what those are for, but what is the purpose of the one screw? and where do those springs go? I unfortunately haven't disassembled my carbs yet, and I have drill bits and can get jets and needles if my needles need replacing for less than a jet kit. I'd like to forego the expense of the kit and just drill the right sized hole (in my slides if I remember correctly) insert the same size jets that would come in the kit, and raise the needles, but again, I don't know where the springs go or what the 1 screw is for :oops: Thank you,
 
I think the screw is a tool for removing a cap over the mixture screws. The springs go on top of the slides and help in throttle response. My kit also came with an air jet adjuster (it's a little brass fitting that gets glued into your air jet). My kit didn't actually come with the springs. One of the biggest things is having adjustable needles, and the fact that they have done most of the leg work for you.
 
I have pods and 4into1 V&H, so I have the performance mods that would require a jet kit. The only jet kit I could find was 114, so I'll check that link. 45 is pretty good. I know I can get 4 mains for 6 bucks, I haven't checked on needle prices, if the stock needles are not adjustible (are they adjustible?) I also already have titanium drill bits so all I'd relly need is maybe the springs, jets and possibly needles. Thank you, ~Ben
 
I was told to use a particular size washer on my 400s needles so that I could raise them. This was due to them being factory parts without notches.

Steve
 
Part of what you are paying for is the correct needles with the correct taper(to replace the stock needles) , the correct jets, small parts and specific instructions for installation/ modification,and there R&D costs. The kits are well worth the money they cost
 
well, what I have is a 78 gs 750 with a 79 gs1000 engine installed, so the carbs are 750 carbs and the engine is 1000. I thought they may have used a 28mm carb on the 750, but I may be incorrect, I know from posts here they used a 26 mm carb on the 1000, so there could be a discrepancy between the jet kit and what is actually best for my bike.
 
srivett said:
I was told to use a particular size washer on my 400s needles so that I could raise them. This was due to them being factory parts without notches.

Steve
Click to expand...
that works well Steve, it can make for finer tuning But the range is limited. I use tiny washers.
 
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