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  1. Maintenance/Repairs/Tuning
    Hi guys I’m new to the quad world and I have a few questions. I just got a ltz400 when I bought it I saw the choke didn’t work so I went on and watch some videos about how to remove the plunger sense was stuck in the carb, after a few minutes I manage to get it out!! I got a couple new plungers...
  2. Maintenance/Repairs/Tuning
    Is there anyone that i could send my bottom end to get rebuilt?
  3. Performance parts!
    Ok guys i was really wanting to get some stage 1 cams for my z it is only tuned for a dg exhaust other than that its stock but will stage 1 hotcams hurt the motor and will it make any noises?
  4. Maintenance/Repairs/Tuning
    Ok guy im going to replace my timing chain do i need to put the teeth on certain links on the chain sprocket like the cams? And any advice on putting piston rings in?
  5. LT-Z400
    Okay I thought this was the heat shield rattling but it isn’t whenever I’m in gear and driving usually in high revs the bike will rattle or buzz really loud and I don’t know where it’s coming from it does it sometimes in neutral but most of the time it’s while it’s in gear if someone tells me...
  6. LT-Z400
    I live in ky my elevation is around 400ft I have a team Suzuki yoshi slip on and a uni filter air box lid on, snorkel on ( no point of removing it I’m not racing it) but I just want to know what jets I should run and where my needle should be thanks.
  7. LT-Z400
    Ok so my 03 z400 has a block off plate on the caliper but it still has the parking brake setup on the handlebars I was wondering if I could take it off without causing any problems anyone know?
  8. LT-Z400
    I have an 03 ltz 400 and at mid to high rpms I think it’s the heat shield on the exhaust that’s rattling and makes a horrible sound anyone know how to fix this?
  9. LT-Z400
    Hello, i have a issue that when i turn the key nothing happens (no lights and it wont start) but i can push the quad to start and it keeps running and the lights and everything works. Battery works fine.
  10. LT-Z400
    Hey if anyone could help I’m having a problem finding what jets to run in my ltz 400 I have a 13:5:1 high comp piston an a lexx mx exhaust can anyone help me get it dialed in ?
  11. LT-Z400
    So I just replaced my starter clutch in my 05 ltz 400. Before I put it in the starter would just spin but nothing would happen. Now when I try to start it it sounds like its gonna start but then it never fully starts. The battery is fully charged so it's not that.
  12. Maintenance/Repairs/Tuning
    I recently installed a power commander 5 on my 2013 Ltz 400 along with a full exhaust. After installing the programmer the quad would hesitate when mashing the gas from idle in only in second gear it seemed. I took the power commander off and tried again and it didn’t do it anymore so I...
  13. LT-Z400
    Hey guys, I've got an 07 z400 that I'm looking to change the wiring harness on. My question is, if I buy a harness from 04 with the cdi will it fit on my bike?Or are there more differences im not aware of than just the cdi.
  14. LT-Z400
    Hey guys, I am new to the forum. I am the dedicated mechanic for my girlfriend’s ltz400 that she just bought a few weeks ago and it has some issues I can not quite figure out. Here is what the bike has: Yoshimura pipe (not sure if its full of slip on) and we just added a spark arrestor to try to...