98 xr600 stiff trottle

2 replies to this topic
  • petem

Posted March 13, 2004 - 07:10 PM


I have a 99 yz400f and swapped bikes with my xr riding bud
i noticed he has a very stiff trottle.Giving you arm pump
after a couple of twists.He said he has always had this problem before and after carb and exhaust mods.Has push pull
tupe trottle.He's had it all apart with no signs of defects,slide,cables and trottle.Seems worse with engine running with vacuum pulling against slide.Any suggestions Thanks,Pete

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  • irondude

Posted March 13, 2004 - 07:35 PM


needs grease on the bars under the throttle
needs throttle back out 1/4inch or so from end of bars
needs new cables
needs varnish removed from slide
cables kinked under the tank

  • petem

Posted March 14, 2004 - 05:30 AM


Thanks for the reply, I will inspect and check all those items.If it had a snappy trottle the bike would rip,Thanks

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