AAAARGH!!! New needle not working as planned
Posted May 28, 2003 - 02:25 PM
Posted May 28, 2003 - 03:06 PM
Posted May 28, 2003 - 03:08 PM
Posted May 28, 2003 - 04:01 PM
Thanks for the info..I have the stock wr cam in it. I was told that the YZ needle would fix the o-1/4 flat spot in the throttle response. As far as the mods...airbox baffle removed, YZ throttle stop. FMF q series.gray wire.zip ty fuel screw. I appreciate everyones patience and time with this issue..I am seeing that more isn't always better!
Posted May 28, 2003 - 04:47 PM
Posted May 28, 2003 - 08:13 PM
Posted May 29, 2003 - 03:29 AM
I has been raining evey day for weeks so I've had plenty of time to play in the garage.
Posted June 01, 2003 - 05:52 PM
I ended up changing my Jetting on Sat for the Fool's Gold Enduro... I had to cork the Yosh with the smallest tech insert to pass sound and went to: 160MJ (down from 165), 48PJ (down from 50), YZF needle 4th Clip (down from 5th), 2.0 turns on the Ty Davis screw... When I took out the insert and rode around a bit, the bike ended up hitting better than the richer configuration!
Posted June 02, 2003 - 05:57 AM
leaner is sharp as long as it isn't lean! and if it were it would definately let you know!
there is no way these bikes need a 50, 48, 45 or even a 42 PJ at any level!
40 is the max with a PAJ or PAS to suit, so come on lads. when i stopped here a year ago i left the jetting in safe hands i thought at 40PJ max, sure every week some body came along and said i got rid of a misifre with a 48 or the cough and splutter went with the 45.
however truth is stranger than fiction and thes bikes can give you lots of grief when they are partially rich. if you does them in fuel, blunt their edge and wash away there power YES YOU WILL GET RID OF YOUR TROUBLES_APPARENTLY!
but it's a cul-de-sac a dead end.
leaner jetting and it was better, now i wonder who took us there? mmmmmmmmmm!
indy speaks a great deal of sense when he says that it's too simplistic to just buy a YZ needle! i think hick must have started all that. i don't even know what a YZ needle is! seriously, why should i? after all they change the phuqing thing every year
what would add to indy's comments though is that you have to turn everything down, especially around tickover, first gear stuff.
i'm talking PJ, PAS, APJ, lower the main (which effectively is like lowering the needle at lower revs) everything on these goes down and down. if the bike didn't run better everytime it would get depressing!
Posted June 03, 2003 - 12:56 AM
Posted June 03, 2003 - 01:37 AM
if you're running 42PJ with 2 turns out on the PS and yoiu swear that after doing snap wheelie tests that that was the best set up:????? well i think you have got to either be
running a 100PAJ
have a fat needle like a Q or an R
or the needle on clip 1 or at best 2.
when i used to stand up on mine and squirt around the back of trees, or oh! sheet here's a bottomless pit coming up, man was i glad i could haul on the bars, pull the throttle and make it.
another classic was the 1 in 4 hill in slim on tickover with a stealy 10oz steak fitted. never stalled and often popped a little one over the top.
am i the only rider that lives in this environment?
as my signature says;
i'm riding a husey FE400e and i love it!
Posted June 03, 2003 - 03:38 AM
Taffy and I agree to disagree on many things, including the use of a 42/75 for summer or the 45/100 for winter. It worked for me for two years of hard racing. I do however have to admit that it was a tad rich (Which I like as not to blow engines or create artificial overheating conditions. I did try Taffy's 38/65 150/160 combination and found it to be very good for me from sea level to about 2800 ft, but in my bikes a little lean over 3000ft and just on the edge of pinging. I also found that running my starter jet all the way down to 50 from the stock 65, gave the bike that extra kick it needs to start cold without loading the carb to the point of rolling black smoke out the exhaust can when pulling the throttle with the choke pulled.
JD's jetting guide is a must for troubleshooting many of the various problems at different altitudes and temp ranges. (You do however have to be a HS Grad with an interest in rocket science and physics to really grab ahold of what JD has done with the data.) Still it's a great document and worth the money thru the TT store. and actually is now more important since it seems that the Original Jetting Q's thread seems to have disappeared into the great abyss that originally formed the basis of JD's document and the baseline theory that was established concerning jetting of the Blue Beast between Taffy and JD, with input by many others as well. (Glad I printed it before all the server changes).
anyway my 2 cents....
Good to see you out here occaisionally Taffster....
Posted June 03, 2003 - 06:29 AM
The jetting qs thread lives on..ya gotta type Jetting qs without the '
Helped me out tremendously.Now to get the parts and start testing!
Posted June 03, 2003 - 08:05 AM
Sudco slow Air Screw
My only q's at this point is since this has been used succesfully for most 400 & 426's that it should be pretty close for the 450 with some minor tweaking. The other q' is I am running the stock wr cam. Soooo the adventure begins. Once again thanks to those of you who have supplied the answers to the puzzle so far, and Taff..if ya have any comments about the q's I have, they would be greatly appreciated!
Posted June 03, 2003 - 08:59 AM
we've never had a crossed word before and i don't want to start now but i won't have anyone take what i did away from me.
the EKP was JD's needle, nothing else, that was the one. as you can see in jetting Qs when i was running 200MAJ my jetting took me well away from his figures and it came back again with the 160MAJ. he could never forseen that in his crystal ball, i forced him to play his cards in the open, to tell us all what he knew and he didn't like it because he was giving away what he knew in order to keep up.
he was busy filing his own needles that's what. there's nothing that you can't do by purchasing the right parts from keihin.
of course what you really need is to create a demand that only you can meet. all jets are incremented. the one mythical commidity is the NEEDLE what better to create a market by slapping coloured codes on needles and go to a new level of bull!!
whose intersts is it in to stop him, TT don't know any better do they?
but my pilot numbers were way way lower. i mean his 45 to my 40 and counting 38 down 35 to the bottom! they always were, and always will be lower, i was told for sure it had to be a P and it was an M straight for sea level. i invented the Taff Mod in twenty minutes having set the bike up over a year without a drop coming from the APJ which i was the only one advocating that the APJ is a worthless piece of junk. now we have so little that the APJ barely functions because the pump loss is greater than the fuel required.
i don't know much about american sport but i'll try this one coz i l-u-r-v the blues brothers; it's like moving all the stands at wrigley fields around one place and saying yep! but the pitchers centre spot hasn't moved. i guess if you say EKP you're never going tobe far away.
whilst my gearbox was broke andy and in aus and JD swore that a 230MAJ was it. nobody did any testing. when i put the bike back on the track i spent 3 hours fastidiously checking that we had all been duped and had gone in the wrong direction. the change of MAJ changed the MJ which dropped the needle which allowed a wider straight which allowed a larger PJ. (remeber that i went down to 35 and then back up to 38 then down to 35 not because i'd got it wrong but because i was putting in the graft and finding out the relationship of everything)everything knocked on.
i was the one who bought the PAS here, i was the one who put the ratios up that are used today. i always put the theories up and put my gob on the line everytime.
i'm the one who isn't trying to coin it, i'm the one who still comes back to where it all began to offer a bit of advice.
my views were so far out that i could have screamed, but i would chip away, chip away, chip away until in the end an american in switzerland had the big bollocks to try my settings, if he hadn't i think i'd still be out there talking to myself now.
through just one, then two, then three people started to take my advice and try things and don't forget that at that time JD and clark mason could do no wrong. what a battle. the mad welshman versus the home boys, maybe you were unaware of the battle i faced, sure i've opened my gob, and had it filled a few times but on this one i handled it like a pro. any kind of frustrated angst thrown at anybody would have seen my views quashed as as mad as me.
if i disagreed with patrick burns write up, i said it, and then in his next edition he would adjust things and 'he' was right!
JD and i had chats about the needle straight versus taper start, i sorted it, i always played my cards in public. i proved his theorries wrong several times and i doubt if any true testing has been done on since.
on the basis that you need less fuel to air at altitude i'm amazed to hear that PJ # go up and that if i run 150MJ at sea level that there aren't any yanks on 140+ at altitude.
yami, JD advocated the EKP for everything, everytime he said you gotta go that way i proved him wrong and went the other! he advocated the 'F' taper; don't see it out there now though do ya!
i continue to nail problems first time up.
sorry, but if he said EKN he said a lot of other things as well. pretty much anything you wanted to hear in fact, for me i chased a cul-de-sac in the 48PJ etc but i think i only went the wrong way once in the next 150 tests.
i've just set my husey up in about 18 test rides, it just so easy now.
anyway good luck, i agree that JD's chart is excellent and anyone getting serious should get one. shame i lost mine last year in a melt down but there you are.
i'm glad you've profited from my work old fella, i would have done the same in your shoes.
Posted June 04, 2003 - 04:16 AM
I stumbled onto tt when I first bought my 2000 WR 400 and followed jetting Q's pretty much as it happened.
At first I was reluctant to dive into this big fourstrokes fandangled carb, but I worked up the confidence and asked all the usual jetting questions. Despite the "go richer" advice of others and a short stint with the ELN needle, 42 pilot and 165 main,I eventually took your advice over theirs and went leaner in jet size and used the EMM needle as you suggested I do.
Every person that has had a ride on my 'taffy' jetted 400, most of them 426 owners, or local bike shop mechanics/tuning gurus, have come away totally amazed at the feel of the bike. I can start the bl#*dy thing with my hand, it will lug up hills at ridiculously low revs without stalling, it will pull top gear wheelies at 100 kilometers an hour on the highway and it will hit the rev limiter in top with 14/48 gearing at 160 kmh(with a panaram fitted).
I have 8500 kilometers on the clock and not one single fouled plug or engine problem to speak of.
Two words that define the whole feel of the bike stick in my mind "seamless metering". I doubt I would have enjoyed the bike anywhere near as much without your patience and valuable advice.
In my blue world YOU are the man taffy!!!!
Its good to see you back in the forum again.
cheers from australia,
Posted June 04, 2003 - 09:11 AM
So don't blow a gasket there big "old" fella....Nobody is trying to take anything away from you.
Posted June 04, 2003 - 11:33 AM
his PJ's never changed, he went the wrong way with the MAJ completely, said you needed the APJ or it didn't operate. he only ever knew of two PAJ's the #75 and the #100-that was it! two!
all he repeatedly kept saying was EKP and a 45 PJ so stop kidding yourself yami. if i'd have said anything bad about him at the time they would have sent a boat over and had me publicly flogged.
what he was first to (and in no way does this make him a pioneer of so let's seperate the two) was the charts, the graphs and what they stood for, over here we never had anything like it. if you have the charts you have the power.
when someone quoted EKP and EMM and DRQ to you, up 1, down 1 at the beginning did you understand it? nope! and neither did anyone else.
suddenly, at last we all got to know how he knew. that's what made him king pin. he had been at it 6 months longer than anyone else and was pretty much one step ahead all the time.
but as far as pioneering, first there, teaching, first up with the formulas like 'the MJ controls the needle' i think you've got to say that it didn't come from him.
but when faith is ingrained then there is little more to do or say.
i don't know what's going on over the orange side but i did catch a 5-minute glimse and i tell you this, there is nothing that can't be done with the standard needles and jets on these bikes. there isn't a need, one has been created in riders minds.
if our american brothers have a weakness it is the desire to believe people too easily. maybe you don't spot it among yourselves but when you come over the pond people slap hands to heads and after a while and have to say "that's us!".
still if you go orange your a blurry iriot anyway!
Posted June 04, 2003 - 02:19 PM