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Found 11 results

  1. today we have 30°F(-1°C) i check my fork air pressure and in both leg it was 30.5 psi . my last presure check 1 day ago when the themp was around 50°F(10°C) was 34psi . the first thought was that i have lost air , but i done more search and i underestand that during winter or when it get colder sir become condence in the fork and we can have a decrease in air presure . now my main question is that , what happen if i set my air presure to 34 now and next day we get 40-50 °F !? will i damage my air fork valving or ... !? what about going in MX track and during the practice the air presure inside the fork rising up !? should i keep my fork air pressure low in the winter !?
  2. BadcaseofTB

    Where does this part go?

    I missed tracking where this little top hat came out of in my 2011 kx450f. Was thinking clutch or right side engine cover. Any help would be appreciated I can’t seem to find it in the manual.
  3. I have a 1999 KLX300R which I bought this past April (2017). I only ever ride it on the weekends for no more than an hour (time constraints). Since I bough it, it has always ran hot. The oversized aftermarket pipe it has constantly heats and burns my leg, just from those hour rides. I've dropped it twice and both times the coolant boiled afterward, but it doesn't boil when I just riding it normally. Just this past weekend (late July), I went riding with some friends and put some hard hours on it. As I was coming in for a break I pulled in the clutch and the engine immediately stopped and locked up. I got off and tried to kick it over but it wouldn't budge. I let it cool down then rolled it back and forth in 6th gear to free it up. It starts and runs smoothly now, but there sounds and feels like there is something rattling around in the top of the cylinder. What should I do? Can and should I try to swap another engine into it? What could the problem be? broken piston ring? broken valve/shim?
  4. hey guys my kx 450 is having a probem,it runs just fine when i first start it and until it gets hot.it seems to cut fuel and just stop accelerating,it does this for a second and cuts back on .m almost sure its not a fuel problem because it would happen when it isnt hot too,ive replaced all 4 valves, springs,and piston and adjusted the valves my mechanic says its the coil but i just want to verify.any ideas?
  5. Walker Leonhardt

    Kx450 Tuning help

    Recently bought a 2011 kx450, first time owning a 4-stroke, efi for that matter. The bike has a tough time starting, with the idle advancer pulled out I can kick and kick forever and it wont start, it'll even backfire after 10-20 kicks. Ive tried without the idler and the only way it starts is with a throttle blip, even then im taking my chances because it will either start, kickback, or backfire. The guy before put on a full fmf system with no re-tune as far as I know. I really don't think its the valves because it runs fine other than that. It also runs pretty damn hot after 2-3 minutes of warming up. Ive checked the plug and its brown for the most part except for a little white at the electrode. Would a full fmf system really screw with starting that much or am I missing something? Would a bad sensor cause this either? Even after its been warmed up it will start hard again.
  6. k_250sx

    2015 KX 450 Air fork oil questions

    We have a 2015 KX 450 and we noticed a little bit of fork oil on the bed of our truck mat, we took the dust seal off and used a seal saver around the seal to get the debris out and that seems to have done the trick. However, is there an easy way to add a little bit of fork oil without taking the fork apart? We maybe lost an ounce if I had to estimate. Is it even worth adding? This is in the AIR FORK side, outer chamber. Any help would be greatly appreciated.
  7. I am thinking of buying a van for motocross touring (try different MX and Enduro track in summer) . furthermore i am planing to go to Spain for a 2 week Motocross touring as well . and in general i am an easygoing camper which wanna park the car beside the roads/beaches/... and enjoy the nature i have looked at small-medium size vans , something like Ford Transit !? are these cars roomy enough for what i want !? or i need a bigger vans !? and in general what equipment should i buy and install in the van !? or what equipment should i carry with me ?
  8. I have a 1999 KLX300R which I bought this past April (2017). I only ever ride it on the weekends for no more than an hour (time constraints). Since I bough it, it has always ran hot. The oversized aftermarket pipe it has constantly heats and burns my leg, just from those hour rides. I've dropped it twice and both times the coolant boiled afterward, but it doesn't boil when I just riding it normally. Just this past weekend (late July), I went riding with some friends and put some hard hours on it. As I was coming in for a break I pulled in the clutch and the engine immediately stopped and locked up. I got off and tried to kick it over but it wouldn't budge. I let it cool down then rolled it back and forth in 6th gear to free it up. It starts and runs smoothly now, but there sounds and feels like there is something rattling around in the top of the cylinder. What should I do? Can and should I try to swap another engine into it? What could the problem be? broken piston ring? broken valve/shim?
  9. Ethan Bell

    Kx450f rattle at low rpm?

    Second ride out on my 2014 kx450f first ride everything smooth, replaced my front sprocket and Chain roller (Rear chain cover is slightly rubbing on chain). On the lower left side i hear an occasional rattle when riding in all gears putting around. When I hit the gas hard and rip through the gears ur tends to go away. Also goes away when bike is stationary as well as just rolling in neutral. Chain and sprockets are new. could it be chain slap? Or worse something with my transmission? If so how would I go about fixing it considering it’s all new parts
  10. wolffracing182

    Would like some honest opinions

    I've hit a plateau; I'm looking for some advice to help me improve my riding. Check out this video. Thanks,
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