Question about 1993 Suzuki RF 400 R

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Idle screw seems to have no effect on revs? I must have turned it 30 times in each direction and it seems to do nothing to alter the idle level? Am i doing something wrong? :0(

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  • christoph798 Feb 09, 2010

    Hi, Thanks, but the revs are too low not too high, its stalling when i take the choke off?

  • christoph798 Feb 10, 2010

    Your right, thats my fault sorry. :0)

    Right ok, Ill have a go at the above. Thanks for your help. :0)


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Check you have free play in the throtol cable, if its tight it will hold the revs up also if the carb is sticky it will do the same thing

Posted on Feb 08, 2010

Testimonial: "Very patient! :)"

  • Michael Thorpe
    Michael Thorpe Feb 09, 2010

    well you never sead if it was high or low???

    ok,,me thinks then its the slow running jets (tickover jets) in the carb blocked up thats why it only runs on choke, as soon as the choke it turned off the bike cuts out,,,strip down the carb flote boles and spray some carb cleaner into all the jets you can find there,,, DONT go poking bits of wire into any of the jets as this can bamage the jets,,,it may still cut out on you untill you reset the slow running screw up again,,, there is another way to try to clear the jets and that is,,,,,, take off the air filter so you can get to the inlet on the carb,,, run up the engine, give it a bog rev and place your hand over the carbs the vacuum from the engine may just **** out any dirt from the slow running jets and clear the carb that way do it a fuw times on each carb,, (best done both at the same time) but you need extra hands to do it this way,,,and it still may not work for you, only striping the carbs down is guaranteed to fix it, have fun, drive safely,,,


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