rich fcr,s

[steve speed]

just been out for a very cold run and its now running great all the way though the rev range ,,the only way i can provoke it to misbehave is to go wot at 4000rpm it then just bogs down , i suppose this is why they fit diaphram carbs to things like firestorms and as std to the TRX , so these are my final settings
main jet 165
main air jet 180
needle, ocemp
clip 5th
slow jet 48
slow air jet 1.5 turns
fuel screw 1.5 turns
the only way i see now for any improvement is to run it on the dyno

[Killerwhale]

just been out for a very cold run and its now running great all the way though the rev range ,,the only way i can provoke it to misbehave is to go wot at 4000rpm it then just bogs down , i suppose this is why they fit diaphram carbs to things like firestorms and as std to the TRX , so these are my final settings
main jet 165
main air jet 180
needle, ocemp
clip 5th
slow jet 48
slow air jet 1.5 turns
fuel screw 1.5 turns
the only way i see now for any improvement is to run it on the dyno

Holy crap, mine where lean as hell today on my ride. OK we got -1 today but i have 175 main in now...
Mine pulls clean from under 3k, guess it´s because of the high comp 878....and you have not done that heh?
...but a bog from 4k sounds to high, try a strap around the acc pump arm to get a direct squirt...works a charm for me!

[steve speed]

yes i have done the 878 cc and there is a lot more power ,,,now what do you mean "try a strap around the acc pump arm to get a direct squirt ",,??? what are your settings ? why dont you try and go down on the maj ? it worked a treat for me

[Killerwhale]

yes i have done the 878 cc and there is a lot more power ,,,now what do you mean "try a strap around the acc pump arm to get a direct squirt ",,??? what are your settings ? why dont you try and go down on the maj ? it worked a treat for me

First off, the arm is spring loaded so you have lag in it....if you lock it you get a direct squirt

Second, MAJ only affect the very top of the revs and mine goes fat on top so i need a BIGGER MAJ....

Third, was thinking earlier (yeah, amazing) and you said yours where lean on top....why not give the bike more fuel instead of less air.
Should result in more of "good mixture"!?
Also, how have you come to the conclusion? You really need to go full speed on fifth and myself would prefer a dyno for that.... (especially in this weather)

[Kayla]

Just out of curiousity more than anything else, will you pair be rejetting in the spring/summer when the weather won't be quite so chilly?

[steve speed]

yes i have done the 878 cc and there is a lot more power ,,,now what do you mean "try a strap around the acc pump arm to get a direct squirt ",,??? what are your settings ? why dont you try and go down on the maj ? it worked a treat for me

First off, the arm is spring loaded so you have lag in it....if you lock it you get a direct squirt

Second, MAJ only affect the very top of the revs and mine goes fat on top so i need a BIGGER MAJ....

Third, was thinking earlier (yeah, amazing) and you said yours where lean on top....why not give the bike more fuel instead of less air.
Should result in more of "good mixture"!?
Also, how have you come to the conclusion? You really need to go full speed on fifth and myself would prefer a dyno for that.... (especially in this weather)

i had no lag , this may have been the problem ! as it went rich just off idle so i have now reset that today
the biggest maj you can fit is 230 , thats the size of the hole behind the jet
third i tried more fuel i drilled out a small jet to 180 and that just made it rich every were up to top revs wot then it was ok
it was alans that said it would be a good idea to drop the size of the maj , i will take it to the dyno as soon as i can dig my way out of the snow

[Killerwhale]

yes i have done the 878 cc and there is a lot more power ,,,now what do you mean "try a strap around the acc pump arm to get a direct squirt ",,??? what are your settings ? why dont you try and go down on the maj ? it worked a treat for me

First off, the arm is spring loaded so you have lag in it....if you lock it you get a direct squirt

Second, MAJ only affect the very top of the revs and mine goes fat on top so i need a BIGGER MAJ....

as alans that said it would be a good idea to drop the size of the maj , i will take it to the dyno as soon as i can dig my way out of the snow

Will for sure be interesting to see that curve mate!