Carb and CDI

im not sure man.... there was a 60 jet in there somewhere..... (its the middle sized jet)

no idea what slide....

 

ok....i confirmed the 2nd smallest jet (the middle sized one i guess) is a 60.....


anyway....i put in the 85 jet.....and it made stuff all difference.

its weird....seems to go ok at full throttle....even from standing still.....
if i nail it off the line, it pulls pretty quick.

unfortunatly this is no good for riding in traffic.

at the moment its got 6x4g rollers and 3x3g rollers....tomorrow night i might put it back to the opposite pattern again.

other than that...im out of ideas......

 

yep there are 3... one is really tiny tho....

ill upload a picture today

also....talking to a guy here at work.....

which way does the mixture screw work?

i have it wound in all the way, then out a turn and a half..... i thought in was leaner.... he thinks that out may make it leaner....

also, how does it work? does this directly push the needle up and down (similar to the idle adjust)?

 

I think the PHBG series has 3 jets although im not 100%,

Starter,Idle,Main.


EDIT: As for the mixture screw... Screw in to lean it out/Screw out to richen.

 

dammit... thought i was onto something there....

how does the mixture screw work?

 

i dunno about the thicker needle....

is this a common problem? do other people need different needles?

 

As no two bikes are the same, one engine could have exact same setup as you and have different carb settings... so its only ever possible to give rough guide to what you should be looking at running... dont forget tho, as your down under [lol] theres difference in atmospheric pressure and air temp... so this also makes it difficult to give you a rough guide.. My advice would be to invest in a dellorto carb tuning manual and go through each section individually.... just my 2p tho.

 

yeah i guess your right....

btw here are the jets...

 

From left to right [for future ref]... Main jet, Idle jet, Starter jet.

BTW simon, it wasnt anything against you, it will benefit you if anything because theyre full of info on fine tuning etc.

 

thanks james...i appreciate any advise....
like ive said before...im a turbo efi man.... this stuff is like black magic....hehe

ok...in the bike atm... main jet = 85 (previously 90...same problem)
idle jet = nfi (stock)..... starter jet = 60 (stock)

 

so move the circlip down the needle...one notch at a time.....

if it exadurates the problem then thats it?

are needles easy to get?

 

ok...ill check it out....

if the roller weights are slightly too heavy, what are the symptoms?

 

also...something of note.....

the carby gets very cold... after riding for half an hour, it is wet with condensation.....

is this normal?

 

yeah carbs do get very cold.