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  • carby

    Hi guys my son has 2002 rm85 at the moment it has a carby problem. Running a bit lean jetting problems. They say in the manual to use a keihin PE28 any help would be great. Thanks Rosso.

  • #2
    Hi Rosso,
    Looks like you have asked the same question twice hoping for the best. The reasons nobody replies could be numerous. Probably because you are new here - 2 posts. I think you will probably need to give a bit more before you take. There are heaps on here that can help. Is your RM flogged to death or hardly used? If the foot pegs are rattling and bent the motor/carb could have 200 hours+ of abuse, dust, the slide and needle are rooted, full of varnish and gunk. We can go on all day. What have you done/tried? What makes you say it's lean? Feels lean or IS lean? The plug is new and shows lean? Did you buy it in this condition or it was great last week and now seems lean... If you are new to this and everything above is not crystal clear I'd recommend (no offense here mind you) you do some reading and come back with answers to the questions nobody has asked, if you know what I mean, so we all know you have made some effort. I have a book on motorcycle tuning that SGall wrote for Yamaha from decades ago. There is also a great PDF on motorcycle carb tuning that covers everything. I mean, you may need to pull it down and simply clean it with carb cleaner, toothbrush and compressed air (or numerous other no abusive/corrosive methods) and be on your way to victory. Let's hear where your at?


    • #3
      Rossco, i replied to your exactly the same march 4th thread on march 6th and you never gave any feedback or even reply'd.
      I feel like i've wasted my time replying.Good luck.

      Sent from my SM-G900I using Tapatalk


      • #4
        I just noticed that myself, there was lots of good info in there too. I think we know what to do from here...moving along.


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