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fuel and engine
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  1. Engine/EFI/Drivetrain
    I have a 2007 LTR 450, the fuel system and engine are both good. Injector spits right amount of fuel and has good pressure. Valves are set to spec and piston and rings were just done. Engine is sound. Only mods on it is a sparks exhaust system. It runs horribly cracks and backfires with 1 foot...
  2. Engine/EFI/Drivetrain
    So last weekend I stripped out my brass screw on the swirl tank. I have no idea how to get it out so I am just deciding to take it off and go inline. I am confused on how the T Brass fitting goes in and how the ventilation works. I just wanna get it done right the first time. I see some people...
  3. Engine/EFI/Drivetrain
    Hey guys, New to the forum and just bought my first 06 LTR a few weeks ago. Anyways, I replaced the swirl filter with the inline and everything was going alright - it was running great. Next there was a leak on my fuel pump housing, so I took it apart and replaced the screws and used some...
  4. Engine/EFI/Drivetrain
    i have a 06 ltr 450 i bought that needed a new head so i replaced it and cant get it to run unless i unplug the fuel pump if it is plugged in it only sparks 3 times then stops when you hit the start button i have check the stator, pick up, wiring harness and injector ive also have swapped out...
  5. Member Introductions
    so i traded my 05 trx for a 07 ltr and they boy said he thought it needed valves adjusted so i bring it home and the battery is dead as a door nail new battery and about a minute later it starts right up and idles great but then it starts to miss and will not take fuel? the slightest touch of...
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