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ATV & Off Road Modifications

Share your ATV & Off Road modifications and projects. Get help with your ATV mods by posting what you are working on, your progress, and how your final project is coming along. Show is your modded ATV, UTV, Side by Side, ATC, or other Off Road vehicle.

178 topics in this forum

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  1. Post your mods...

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  2. Where to Connect LED Light Bar?

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  3. 6 lt250r

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  4. Mods for a 220 Bayou?

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  5. YFZ hybrid

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  6. Axle guards

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  7. Guru bumpers

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  8. Purchased SunF Mud Tires

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  9. SunF Mud Tires & clutching

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  10. atv tool holder

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  11. ATV Tires

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  12. Made myself a new bumper.

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  13. 1994 King Quad with tracks?

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  14. custom graphic kits

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  15. pc3 map

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  16. mods needed for a king quad 700

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  17. 89 Yamaha Big Bear 350 4x4

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  18. apache f100 help with tuning

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  19. Seat Covers

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  20. DIY Skid Plate

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  21. Engine for tractor pulling

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  22. Latest Mods to My Can-Am

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  23. Reducing noise..

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  24. 2003 Honda 400ex axle hub

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  25. 03 Honda 400ex axle

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  26. Skid plate help

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    • 1,493 views


  • Latest Forum Posts

    • I  did a little searching on your  carb. The  third line on the carb is a vacuum  line to  create the pulses  to  drive the  pump. I  found a youtube video  on rejetting your  carb that  you might want to  watch .. He points out the  fuel  pump  vacuum line connection in it .  
    • It’s a bitch but two things have to happen.  1. You must have the air filter on as if the bike was ready to ride.  2. You have to make up a small screw driver to get in to the adjustment spot.  I’ve done it  I bought a flex driver which is a small flexibile shaft screwdriver. Or make one up.    
    • *well- nobody has explained to me what I'm looking for when I adjust the carb
    • ok so I have never heard this before...  haha nobody has ever explained to me HOW to adjust a carb on a bike yet.  Thanks!  Also, how do you adjust the air screw while the carb is on the bike?  I have never been able to do that since the screw comes out the bottom of the carb.  but thanks!  I knew the engine wont run right if the ratio is off, but I did not know that it would affect rpm....just never put 2 and 2 together
    • It’s a 500 so right out of the gate you know 1-3/4 will be the minimum. Start there and adjust out.  Keep the idle as lows as possable to keep the bike running. As you adjust the fuel/air mixture screw the bike will rev up as you get better. While this is going on you will have to lower the idle. Keep adjusting until the highest point of reving. That means at some point the engine will not continue to rev higher but start to act up.  Once you hit that point you have passed the sweet spot.  Back it down and make final adjustments.  The highest revs mean the bike is getting the most out of fuel and air.   

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