Dyno Jet kit
#1
Join Date: Dec 2010
Location: Coromandel Peninsula New Zealand
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Dyno Jet kit
I fitted a Dyno Jet kit...well, a Custom Chrome copy to my CV carby.......I left my 48 low speed jet in and went up to a 190 main and it ran fine over 2,000 RPM....very well actually and I was totally pleased with that part of it but it ran like a scabby dog below 2,000 and I had to wind my adjustable accelerator pump back as lean as it would go without the needle falling out to get to the shop to get a new low speed jet without fouling plugs.
So I changed my low speed jet to a 42, set the accel pump to 2 turns weaker than before the conversion and its fine, great even.....anybody else have any set up stories to share about dyno jet kits or similar?
So I changed my low speed jet to a 42, set the accel pump to 2 turns weaker than before the conversion and its fine, great even.....anybody else have any set up stories to share about dyno jet kits or similar?
Last edited by Spanners39; 04-06-2011 at 06:31 PM.
#2
Hi from the UK! The only bikes I have tinkered with like that are my old Glide, when it was relatively new and I fitted a jet kit to it (now long behind us both!), also my Dyna when I did the same. The Evo was fine, but the DYna needed some expert help to get it running right. I must confess I turned to my local dealer, who sorted things out just fine.
#3
#4
If you don't mind me asking, why are you not a fan on enlarging that vacuum hole? I was about to do it but have not yet. I was going to shim the needle up a bit as well.
#5
Join Date: Sep 2007
Location: Bluffton, South Carolina
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Spanners, what adjustable accelerator pump are you talking about on a CV??
200FLST, drilling out the slide or putting in a weaker spring works much better on the track than it does on the street. It causes the slide to open up too soon, and can cause a "Sawtooth" line on the dyno as it fluctuates up and down. Do not shim the needle, just get the '88 Sporty needle, you will be much happier. Hope this helps.
200FLST, drilling out the slide or putting in a weaker spring works much better on the track than it does on the street. It causes the slide to open up too soon, and can cause a "Sawtooth" line on the dyno as it fluctuates up and down. Do not shim the needle, just get the '88 Sporty needle, you will be much happier. Hope this helps.
#6
Spanners, what adjustable accelerator pump are you talking about on a CV??
200FLST, drilling out the slide or putting in a weaker spring works much better on the track than it does on the street. It causes the slide to open up too soon, and can cause a "Sawtooth" line on the dyno as it fluctuates up and down. Do not shim the needle, just get the '88 Sporty needle, you will be much happier. Hope this helps.
200FLST, drilling out the slide or putting in a weaker spring works much better on the track than it does on the street. It causes the slide to open up too soon, and can cause a "Sawtooth" line on the dyno as it fluctuates up and down. Do not shim the needle, just get the '88 Sporty needle, you will be much happier. Hope this helps.
#7
Join Date: Dec 2010
Location: Coromandel Peninsula New Zealand
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#8
Spanners, what adjustable accelerator pump are you talking about on a CV??
200FLST, drilling out the slide or putting in a weaker spring works much better on the track than it does on the street. It causes the slide to open up too soon, and can cause a "Sawtooth" line on the dyno as it fluctuates up and down. Do not shim the needle, just get the '88 Sporty needle, you will be much happier. Hope this helps.
200FLST, drilling out the slide or putting in a weaker spring works much better on the track than it does on the street. It causes the slide to open up too soon, and can cause a "Sawtooth" line on the dyno as it fluctuates up and down. Do not shim the needle, just get the '88 Sporty needle, you will be much happier. Hope this helps.