Jetting Recomendations please!

[SHEEMAN0415]

Hey guys just give me an idea of what you would run for jets here are mods:

Stock carbs

Full shearer exhaust

cylinders bored to 66.25mm

Boyesen reed cage and reeds

open airbox 

[SHEEMAN0415]

oh and elevation is 356 feet

[Surfrjag]

No porting?

No timing advance?

[SHEEMAN0415]

No porting?

No timing advance?

no sir

[yzf2yfz]

Im new here as well with very little credibility, but i can give you this link, http://www.dfn.com/agservices/jetfaq.html
scroll about 3/4 the way down to read up on how mods and jetting hit an equilibrium.

[Sandking]

Call shearer and see what he recommends. I would figure up 2-3 sizes on your main jet.

[yzf2yfz]

Call shearer and see what he recommends. I would figure up 2-3 sizes on your main jet.

if he claims to have an open airbox, and full pipes with reeds, wouldnt that yield at least 2-10 sizes larger mains, and 1-3 larger pilots? could be wrong.

[SHEEMAN0415]

thanks guys

[SHEEMAN0415]

Im new here as well with very little credibility, but i can give you this link, http://www.dfn.com/agservices/jetfaq.html

scroll about 3/4 the way down to read up on how mods and jetting hit an equilibrium.

cool link man thanks

[sleeper06]

290-300 mains 27.5 pilots needles 4 th clip start there might need to lean down on a plug chop but should be safe to start tuning

[Strm Trpr]

^^^ Why put the needle clip in the 4th groove?

I know it fattens up the mid-range but am I missing something?

 

Look at my mods.

I do not run a cross-over tube and run individual billet intakes.

Sync is dead-nuts at a 1500rpm idle and 5500rpm part throttle.

Would I benefit from moving the clip?

My motor doesn't ever have any anomolies (sp), like a lean spot in the mid-range or something like that.

I have Toomey needles that came with the bike, but Kevin Herr told me to put the jets in just as they are and run it with stock needles.

I plug chopped it several times and it's perfect!!

 

Thoughts?