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Ok so I have an 06' YFZ450 with a DASA Classic and a velocity intake with K&N this intake eliminates the airbox with a metal tube. The jets I have in there now are The Dynojet DJ146 main and the DPJM048 pilot with the needle on the second clip does this set up sound ok I am at about 800ft above sea level. I was told I would need a 170 main and a 48 pilot for my set up I know the Dynojet kit is measured by diameter but what does it equate too in cc
 
Yama pm me with your email and ill send you a document that will help you out.
 
matt pm me your email
 
please help i em goin crazy tryin to figure this out
i have hmf slip on hot caMS stage 1 k&n air filter with no lid stock box
i em at sea level
some people say i need 180 m but only got a 178 and take few days to order a 180 in but most people saY it would be way way to rich
i tried 42, 48pilot & 4th notch ncvq needle 2 to 3 turns air fuel 168.170.172.175.178 i find aounrd the 168 to 172 the bike works better but stumbles up top like 5th gear wide open and its nto the rev limiter i can power threw it and hit the limiter just like a miss like runnin out of gas for split second like a sputter
what do i do or go with
also my plug is a creamy paigy colour on the steel peice but the porcalin part is white
 
Well I really did something wrong last night... I have been messing with the jet settings for the past 2 nights. We are getting ready to go to lil sahara this weekend and I wanted to fine tune the jetting to make it run better and get rid of the top end bog I was having. Well I keep trying different jets ands went last night to yamaha to get an NCVQ needle (mine is 06 non adjustable) and a few more jets.. well they didnt have any jets I needed and didnt have the needle either.. So I took my needle out to see if it was ever changed by the previouis owner and it was not.. I though to my self why dont I notch my own..I did with a dremel and clip went on!! back to gether and it would not idle.. Adjusted and adjusted jets..got so bad I put the clip back on the stock part of the needle and still will not idle.. ANY IDEAS on what I did or what could be wrong??? Is the carb slide supposed to close all the way when the throttle is not pressed? mine dosent.. I just dont know what I screwed up.. I leave in 2 days and dont know what to do.. I wish I would have left it alone LOL..
 
QUOTE (TylerZ06 @ May 26 2010, 09:33 AM) index.php?act=findpost&pid=857407
Well I really did something wrong last night... I have been messing with the jet settings for the past 2 nights. We are getting ready to go to lil sahara this weekend and I wanted to fine tune the jetting to make it run better and get rid of the top end bog I was having. Well I keep trying different jets ands went last night to yamaha to get an NCVQ needle (mine is 06 non adjustable) and a few more jets.. well they didnt have any jets I needed and didnt have the needle either.. So I took my needle out to see if it was ever changed by the previouis owner and it was not.. I though to my self why dont I notch my own..I did with a dremel and clip went on!! back to gether and it would not idle.. Adjusted and adjusted jets..got so bad I put the clip back on the stock part of the needle and still will not idle.. ANY IDEAS on what I did or what could be wrong??? Is the carb slide supposed to close all the way when the throttle is not pressed? mine dosent.. I just dont know what I screwed up.. I leave in 2 days and dont know what to do.. I wish I would have left it alone LOL..[/b]
Have you removed your carb or just turned ? Maybe you have misplaced the TPS Switch. I am not sure but I have seen some where here that you can bypass it or just disconnect. Try to search in the web or in the forum for keywords such as "not idle" "tps switch" "bypass". Or you wait for some more solution from other members.
 
QUOTE (Leo Harmen @ May 26 2010, 07:45 AM) index.php?act=findpost&pid=857408
Have you removed your carb or just turned ? Maybe you have misplaced the TPS Switch. I am not sure but I have seen some where here that you can bypass it or just disconnect. Try to search in the web or in the forum for keywords such as "not idle" "tps switch" "bypass". Or you wait for some more solution from other members.[/b]


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well i am still stuck..i did not remove the carb just turned it to install the new needle and jets.. it is a jd jet kit and i am using the blue needle and pretty much have tried every combo and adjustment possible... it will not idle.. i can get it to where i just barely hold the throttle just a tad and it is where it needs to be but i can not seem to get it to that point. I tried up and down on jets, needles, fuel screw and the idle up adjustment and still no dice.... my fingers hurt and tired and dont know what else to do.. gonna try moving the needle a little further but then i need some sleep.. sucks i was supposed to leave friday for lil sahara and now I may not... if I could just get it back to where it was i would b happy..
 
QUOTE (TylerZ06 @ May 27 2010, 10:34 AM) index.php?act=findpost&pid=857533
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well i am still stuck..i did not remove the carb just turned it to install the new needle and jets.. it is a jd jet kit and i am using the blue needle and pretty much have tried every combo and adjustment possible... it will not idle.. i can get it to where i just barely hold the throttle just a tad and it is where it needs to be but i can not seem to get it to that point. I tried up and down on jets, needles, fuel screw and the idle up adjustment and still no dice.... my fingers hurt and tired and dont know what else to do.. gonna try moving the needle a little further but then i need some sleep.. sucks i was supposed to leave friday for lil sahara and now I may not... if I could just get it back to where it was i would b happy..[/b]
What needle is there now and what pilot and main jets (Brand and size) ?
 
QUOTE (Leo Harmen @ May 27 2010, 09:50 AM) index.php?act=findpost&pid=857536
What needle is there now and what pilot and main jets (Brand and size) ?[/b]

Leo right now it has the stock needle and stock jets. I bought a JD jet kit and I tried the red and blue needle and 48 pilot and up a few sizes and down to a 45 and 168 to a 175 main.. had the needle on 2 thru 6 clips on both needles.. fuel air screw 1 all the way to 4 turns out.. It fires up on any of the settings but it will not idle.. if I hold the throttle cracked open just a lil bit it is where it needs to be but when i let it go that lil bit it dies. I took the bowl off and checked the float, the lil pin holding it in came out and I put it back in. Checked vacumm leaks.. still dont know what else to look at. I have take this thing apart over 20 times trying different things but cant even get it back to where i was before this all started. Did I miss something? when I turned the carb on its side did something get blocked? should I remove something to see? just need some help and very frustrated.
 
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