New KX 85: what do I need to know . . .

We just moved up to a KX 85. So far all we have done is rejet. What do I need to know. What should I look out for. What spares should we have.

THanks for the info in advance.

are you racing the bike or trail riding it liesurely? when i had my 85 i was young and didnt know any better and would only ride trails and i NEVER touched the bike other then change tranny oil and clean air filter/oil it. bad i know. I would probably keep a spare top end handy because to make any power you really have to wind them out. thats about all i can think of. on my rm 144 i just keep a spare top end handy. basic maint. stuff like greasing wheel bearings/linkage/shock bearings. im sure somebody else with more knowledge on racing wear and tear 85 will chime in.

we will be racing HS and MX with lots of practice in between. SO far we have only fouled a plug in the cold.

my son has a 08 that we have raced for 2 seasons now... #1 switch to a iriduim plug. #2 at the least re-spring it to your sons weight also the kx likes to run that R&D rear link on it. #4 cut i think it was 1.5-2.0 inch's off the end of the stock silencer and re-pack it. It makes it into a FMF shorty.There is a thread on it somewere. Watch the engine mount bolts they love to come loose.........Thats about it..Oh yea we been running ATF in the tranny

yep thats exactly what I need to know

Why did you sat switch to irigium plug (we had trouble with the stock 105 and did the same)

It was recomended on teamgreen site. Un fortunatly i re-jetted and switched plug at the same time.So not sure what they do.Have yet to foul a plug since thou.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Similar Content

    • By Zach121
      Alright, found three bikes all located where i live in Texas. I know they're all very different, but if you could tell me what you think each bike is worth, and which one would be the best deal. Thanks.
      Notes: Both 2 strokes have new top ends. I think the front brake lever is broken on the kawasaki.
      KX250 2002 $800-$1000?

      YZ125 2000 $1250

      KTM 400SX 2002 $1200

    • By Ryan Turner
      So I'm at a bit of a cross roads, I currently own a 06 rm250 and I love it. I also have a 02 kx250 which I'm selling with intent to buy a newer two stroke. I can't afford a newer ktm and the older ones aren't that great and kawasaki never impressed me. so I'm stuck between 06 yz250 and 05 cr250. I've heard the yz and rm after 06 are almost the same bike just the Suzuki handles better and the Yamaha has better suspension. So I'm not sure if I wanna buy carbon copy of my bike with slight differences. That's why I'm interested in a cr250 I heard the 02+ models RC valves are shit garbage but was mostly fixed in the 05-07 models. I ride at a track and at some bogs down the road from me. So from people who have owned both, what would you recommend. I know the cr is known for a hard hitting power band which I enjoy since im an aggressive rider. Should i just see which deal comes my way first.
    • By dirtbikesrule
      If you own a 2 stroke dirtbike,please reply once. Im just wondering how many people on this site have them.
    • By 02YZ426
      I thought it would be interesting to see what everyone in this forum is riding... So post them up
      Here's my 2006

      And my buddies 1996 KX250 that I just finished fixing up. Motor completely rebuilt and ready for the track.