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re-jetting

  1. Dominator / FMX
    As I fitted a Wiseco hi-comp piston to my Dommie, and I'm considering exhaust options (XR headers, 2 into one, different silencers), I wondered about jetting, and also about 'Dave's mod' which I've seen mentioned a few times here but searches yield nothing. So, can anyone point me to 'Dave's...
  2. Dominator / FMX
    Quick question. Has anyone ever re-jetted their bike while the carb is still on the bike? I've got a adjustable Super trap exhaust on my Dommie and I know I can tune to match the carb with that, but I've found a setting that I love the sound of. Not too loud but enough of barrrrrp. So I...
  3. Africa Twin
    Hi guys lookingto pick the brains of the gurus among you. Still have a problem when I roll off the throttle with coughing (that's the bike it me! Ha ha ). Bike accelerates and runs great but when you get to say 70 and start to roll off the throttle to maintain speed the bike seems to cough it's...
  4. Dominator / FMX
    As you may know I've replaced the original silencers on my 2000 NX650 with the end cans off a Triumph Street Triple (see original post). Now the winter nights are here I'd like to 'up' the main jet a bit as per comments on other people's posts about changing exhausts & air filters. So, I've...
  5. Africa Twin
    After fitting a new Arrow PD Replica Exhaust from RR - I have had my bike (1995 RD07) on the dyno (it was in for an MOT anyway) The results are that it is running very very rich (actually off the scale!) and it is only delivering 45 bhp and poor mpg. It was probably running quite rich before...
  6. XR
    Afternoon all, With my XR400RY 2000 I collected today came it's original paperwork which has a seperate booklet n competition preparation taking in a range of aspects. It also deals with re-jetting (I've seen a thread on here). If anyone ever needs a copy of the info contained, just PM me...
  7. Dominator / FMX
    I am trying to decide which exhaust system to buy for my project. At the moment I am liking the one backtracker used from a CRF 250 R on one of his projects and wondering if its an easy fit or is there a bit of fabrication involved. Will I need larger header pipes and is the system a straight...
  8. Mechanical Advice
    I've got a standard can on my AT at the min, but I'm thinking of lightening the load a bit by gettin a lighter, louder, deeper sounding can. :cool: There are so many versions out there. Venom seem to be a favorite. I want something that sounds the dogs, gets better MPG, looks good, saves on...
  9. Africa Twin
    Ahoy there I'm the proud owner of @ (RD07a, year of mfg 2000) from Saint-Petersburg, Russia. She's pretty stock at the moment (except some minor improvements). It's a great bike for almost every purpose but still there is a lot of room for improvements. I wish there would be some more...
  10. Africa Twin
    Hi, last year I bought an AT which had previously been imported from Switzerland. I very quickly realized there was something strange when it wouldn't pull over 80mph. I heard then that Swiss bikes are all restricted - don't know if that's true of all bikes, but on removal of the carbs...
  11. XR
    Hi guys, Still struggling with the horrendous flat spot from standstill, I've had the carb apart and airlined it, replaced the exhaust baffle, changed to standard jets and nothing is helping! It's definitely rideable but it's more frustrating than I can put into words!!! :( SO - seeing as the...
  12. For Sale / Wanted
    Hi All, I am looking to see if I can source some carb main jets for my RD07A so I can try re-jetting to improve the fuelling after fitting a Leo Vince SBK titanium can and pipercross filter. I have 115 standard jets front and rear and am looking for some jets sized above and below this...
  13. Transalp
    Started my basic bike maintenance course last week and this week we used my TA to do a chain change. So saving I guess approx £60 on dealer charges at its iminent 8000 mile service.:p So off came the overly long OEM RK chain that had the back wheel wound all the way back (7800 miles) and on...
  14. Dominator / FMX
    OK, I know this subject has probably been done to death however, its the sort of thing you don't really want to mess up. I'm finally going to be putting on some race pipes on my 2001 Dommie RD08. And therefore will need to rejet the carb (Kehnin). After a lot of hassle ie almost taking my whole...
  15. XR
    You guys are going to wish I hadn't found this forum with all my stupid questions on basic mechanics!! Here is another one.... After being so please with myself for re-jetting my pig (put back in what it came with - 175/65) and running beautifully on the stand I took it out for a ride today. BIG...
  16. XR
    I want to change the jets on my XR as since my local garage attempted to put it back to standard has caused running issues! Can some let me know where I can find nice and clear instructions on the web for changing jets?? Many thanks
  17. XR
    As the mods that Gordon did get referred to almost constantly for an XR I've copied them here for posterity and stickied them. The source was the XR400 Yahoo group. http://autos.groups.yahoo.com/group/xr400/files/%21%21%21%20Gordon%27s%20XR400%20Mods%20%21%21%21/ So let's use this thread for...
  18. Africa Twin
    Does anyone here know if removing the airbox and fitting air filters directly to the carbs is bad? I of course realise that the bike will need re-jetting on the dyno. The bike in question is the RD04, any helpful advice would be appreciated.
  19. XR
    Hi guys, been making some vids covering basics for XR250 owners: 1) CHAIN ADJUSTMENT: http://www.youtube.com/watch?v=HN431qBMy0w 2) SPARK PLUG MOD: http://www.youtube.com/watch?v=-AvZ8IC4xsA 3) RE-JETTING: http://www.youtube.com/watch?v=cEMOH5erBXY 4) EXHAUST & AIRBOX...
  20. Dominator / FMX
    Thinking Of re-jetting the carb on my Old Domi :? any one tell me where to get the parts? And is it worth the effort-do you get much more power how does it effect the mileage per Goollon?? Cheers Me Dear
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