SUFFOLK UK CALLING TAFFY
Posted December 19, 2002 - 12:27 PM
I had a 2000 WR 400, until 3 months ago which had no air box
lid and a white bross E sieres with an FMF power bomb front
pipe, it ran great with no problems even choke worked well
one kick from cold would run on choke until warm no problems.
Real nice bike great fun easy to ride easy to start hot or cold.
Now lucky enough to have purchased one of yamaha europes last WR 400Fs, basically a 426 with 400 engine.
Disapointed with overall running, does not like running on choke bogs easy down low [slow corners], spits and stalls easy, runs genraly poor, only had this bike for approx 3 months, already used 2 new spark plugs.
When riden hard on a motor x track it all seems ok.
Both bikes YZ TIMED from new.
Please ask any questions about my bike that may help you to help me.
Sounds and reads like you know your jets.
P.S Do you ride eastern centre.
Many thanks cookeye newbie......
Posted December 20, 2002 - 01:34 AM
yes i rode my husey at the tunstall, hyde parker and borrowed a GG300 for the banks.
the bike is running very rich. even playing safe you should be good for 40PJ and 75 PAJ. aslo do the BK mod which reduces the APJ squirt.
the MJ can be about 165 and the needle will be ok if you come down on the main. if you don't come down on the main then drop the needle.
in other words do one or t'other!
i don't normally describe the jetting in 100 words but search for jetting Qs and it'll teach you quite a bit.
Posted December 20, 2002 - 12:17 PM
and then let you know how much better it is now tell me if you can what is a JR neadle for as i have one which came whith my full yamaha road kit allong with a155 main jet and some other jets wich have a small tube whith 8 small holes i have been digging in road kit box and also found 160 162 and a 172 170 main jet i cant find the JR neadle listed anywher here thanks cookeye
Posted December 20, 2002 - 06:25 PM
are you riding with choke on or off when cold? If riding with choke on you may be partialy fouling the plug causing running problems once warned up.
Posted December 20, 2002 - 10:03 PM
Posted December 22, 2002 - 06:59 AM
i've never heard of a JR needle either. you've got me stumped.
Posted December 22, 2002 - 09:35 AM
large headlight indicators switchgear complete new wireing harness rear brake light switch hydrolic speedo with WR on its face another speedo cable auto of sidestand THINGMEBOB Stearing lock [JETS and NEADLE]
Flasher unit horn 2 fold away mirrors a nasty turned down tail pipe to rivit onto the o/e sillencer ,apair of strengtheners for the rear mudgaurd to hold the ugly number plate holder whith LARGE reflector, a sticker for the side stand which reads ATTENTION SIDE STAND WHITH AUTOMATIC RETURN and thers more a capacitor loads of different brakets and stuff for large light whith side light a small throtle stop THE BEST BIT is the cam cover breather to air box pipe complete whith clips and elbow for airbox boot my 2000 WR had this stuff fitted before it was boxed but boy did it cost. the yamaha part no for my neadle in the kit is as taken from its o/e packet 5jg 14916 jr
Taffy do you have a road bike
Posted December 22, 2002 - 10:30 AM
Posted December 23, 2002 - 08:25 AM
freestyle. your low speed jetting is still very rich imho. the jetting in the winter goes up according to a lot of people here and so you're now running ok and it'll be crap again in the spring i should think.
therefore you're a hairs breadth away from running rich.
try dropping the needle one clip and put a 42 or even 40 PJ in with a 75PAJ.
you can back the whole thing off imho.
but each to his own.
Posted December 23, 2002 - 11:12 PM
Posted December 25, 2002 - 04:27 AM
it means if it ain't running right don't blame me!!!