Freestyle Help me find the correct jetting - 48mm BJ

[Polish jet pilot]

So I have a lightly ported 727cc + Bpipe +ATP w/b, ATP EPIC ign + head, etc with a single 48mm BlackJack. The jetting is way too rich..My low jet is ok I think (quite good off the line), but high is just barely open and I still use quite a bit of fuel... and then I feel that on the very top (when attempting a trick) it seems that It could have more fuel maybe to turn some more rpm's...??

I understand that to adjust correctly the high jet I need ot have more turns (so to speak) to turn, rather than just adjusting by 1/16 and that making a BIG difference in feel of the ski and fuel consumption - a bit strange to me.

The carb has H160 jet, L140 jet, 2.5 N/S 95 gram spring.... how much in jetting size should I go down? (to 150, 145??)

What is your opinion? Can I improve the settings if you look at this setup?

Thank you guys!

 

[hornedogg79]

Should be around H145 L135 according to similar setups in the carb database.

 

[Polish jet pilot]

can I tune more for freestyle, e.g pop-off or I also head about inverted jetting...(?)

 

[Matt_E]

Art usually puts reverse jetting in his carbs. If I were you, I'd contact him to find out the correct jetting.
As for tuning more towards freestyle, he'll likely tell you to bring the high speed adjusters in a bit more than you would have for regular, prolonged wide open throttle riding.

 

[Polish jet pilot]

Matt, so you saying that the reverese jetting is not "ok"? The high speed is already so in that just few mm more and I close it.. will go down on jetting..otherwise just wasting fuel imo... thanks for info!

 

[Polish jet pilot]

what you guys think about this?

http://www.ebay.com/itm/Kawasaki-Ya...ts&hash=item4cffa2b200&vxp=mtr#ht_2493wt_1396

JRE is a good company - nice billet parts...