Honda NSR 125 R 2004 Not starting right when its cold?????

[18_stuart_88]

just got my new bike last week but for some reason its not starting right????? the guy who had it before me said his started fine everytime and ticked over at 3000 revs, but when i try it gets to 1000 - 1500 and then just dies it takes several attempts to get it up and running!

Any suggestions to what it could be or what i need to buy??

HELP ME PLEASE

[ayfy]

might be an obvious question but are you using the choke?

[18_stuart_88]

yep! still does that exact same thing. sometime i need to move it in and out everytime i try start it just to get a half decent sound of dyingness.

[alains]

i had this kind of things on mine . it is the slow jet which is too small . the normal starting sequence is : choke on , no throttle . it runs 2500-3000 revs then after 1-2 mn the engine seems to stuff , put a bit of throttle and off the choke . several acceleration and it goes ok . i assume you have a french import with jets as :
- main 132
- slow 38
- power 55
if you are not de-restricted fit 135,42,60 and if you are de-restricted fit 138,42,65 . change your plug by a BR9EIX . at this time of the year you will get a lightning start without choke .
your idle must be adjust (engine hot) at 1400 +-100 rpm
PS when starting on choke never use your throttle !
____________________
the worst day fishing is better than the best day working

[18_stuart_88]

Soo its just a technique then, theres nuthing much rong with ma bike? .

its an Italian import. ( pain in the scratcher to read the manual as its all in Italian )

Thanks

[alains]

the manual (english)
- https://www.geneva-racing.com/~alains/NSRmanualDOC.zip (whole) 64,3 Mo
- https://www.geneva-racing.com/~alains/NSRmanualdoc1.zip ( chapters 1-5) 17,6 Mo
- https://www.geneva-racing.com/~alains/NSRmanualdoc2.zip (chapters 6-10) 17,1 Mo
- https://www.geneva-racing.com/~alains/NSRmanualdoc3.zip (chapters 11-14) 18,4 Mo
- https://www.geneva-racing.com/~alains/NSRmanualdoc4.zip (chapters 15-21) 11,5 Mo
electric wiring
- https://www.geneva-racing.com/~alains/schema_R.jpg NSR125R

what you can do , if you are not a mechanic beginer is to take off your carb and look at your jets . by the same time you will clean air box filter , tank tap , fuel strainer and all jets in the carb . report to the workshop manual to do everything
____________________
the worst day fishing is better than the best day working

[18_stuart_88]

Thanks a lot man. Youve been a great help.

All i need to do now is try put all that into action

Ta

[alains]

i will just give infos to take off carb
1) put tank on its stand , close tap , disconnect fuel pipe , undo the central bolt (10 spanner i think) and mind the rubbers and washers
take out the tank
2) air filter . take off the 2 bolts (10 also) , disconnect the plastic pipe underneath the front box , untigh the collar which join air box and carb (underneath the back) . take out the air box
3) undo the screw on top of the choke and pull it out . undo the 2 screws on top of the throttle and pull it out . pull out the 2 small platic pipe on top of the carb . undo the fuel pipe . undo the rubber pipe (oil feed) and lift it and try to lock it as high as possible (avoiding oil leak) . untigh the collar beetween intake pipe and carb . now carb is yours
refer to the manual to dismantle the carb and good DIY !
____________________
the worst day fishing is better than the best day working

[kingsknight]

[alains]

depense on you jetting !
____________________
the worst day fishing is better than the best day working

[Flip]

Is it OK when it's running?