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efi

  1. Need help on ecm and efi problems

    Engine/EFI/Drivetrain
    Hello I have a 2007 ltr 450 I love this quad the look and everything about it so I don't wanna get a new one and I've been battling this problem for a while now my quad will run for 3 seconds then the fuel pump stops and then the spark plug misses like crazy Ik the tip over sensor does that but...
  2. just bought a 07 ltr not sure if valves problem or efi problem HELP

    General Discussion
    so bought a ltr 07 stock engine it has a it has a fmf power power bomb header with fmf 4.1 exhaust , open air box lid with uni foam filter, and a cherry bomb, I have read around but no post seem to have what Im looking for , this is just for my ease of mind. okay so the bikes starts and runs...
  3. Ltr will start when fuel pump is unplugged only

    Engine/EFI/Drivetrain
    Hi, I have some crazy issues going and have searched and searched and found no answers. My 06 ltr's fi light blinks constant and it's like the cylinder is loading up with fuel. I will turn it over and it tries to start but won't. So the crazy part is once it's loads up with some fuel I can...
  4. WTB Carburetor with walsh nut and ring

    Wanted
    Im doing a carb swap on my LTR and need a fair priced FCR carburetor! Anyone with help would be much appreciated!
  5. New to efi pim2 questions

    Dyno/Tuning Room
    Hello new to the forum and the LTR. Just picked up this quad but the current map is not correct it breaks up at WOT. My mods are: Full Yoshi RS5 Exhaust with quiet core in! Cams Aluminum air box (not sure make) with UNI filter No lid 13.1 Piston The quad came with these mods but I have tried...
  6. Power commander 3 or 5?

    Engine/EFI/Drivetrain
    im trying to decide which power commander im going to buy and im not sure which one i want.. i was hoping you guys could help me out here.. i know the power commander 5 is more customizable but is it better? ill give you a list of what im in process of putting on my quad so itll help out. also...
  7. EFI Controller Wanted

    Wanted
    Looking for a power commander 3 or 5 efi controller pm me if you have one for sale thanks! i also have a kicker zx1000.1 amp i would trade for one
  8. LT-R450 will not start or run. Help

    Engine/EFI/Drivetrain
    My LTR 450 sat up for a couple weeks and then it was incredibly hard to crank, the starter would turn over but it was a problem getting it to start, but once it started it was fine and ran great until it sat for a few hours. I have done everything I could think of to fix it because now it will...
  9. ltr 450 rev limiter half way though throttle

    Engine/EFI/Drivetrain
    my ltr is hiting the rev limiter half way though throttle every gear any ideas?
  10. 06 carb conversion help?

    Engine/EFI/Drivetrain
    I have an 06 ltr and its done nothing but give me problems .... it will not run correctly, I have changed every single part of the fuel system otger than the throttle bbody which I may try... but anyways Does anyone know of a cheaper way to do a carb kit other than buying the whole kit from...
  11. ltr loss of top end but now i have bottom end

    Engine/EFI/Drivetrain
    my ltr had top end like a monster i would give it gas and instant response no bog at all instanly turn didnt try holding it self back.. now i give it gas it bog just a lttle then it goes and has bottom end but i want the mid to top end back.. anyone know what might be up??
  12. hard to start/ idle fine please help

    Engine/EFI/Drivetrain
    I have a 2007 ltr.....cherry bomb, yosh exhasut, high comp piston, hot cam....i took apart the entire fuel system and cleaned all filters, blew out all injectors, and after doing that it fires right up and runs clean for about 2 mins then right back to a strong idle and it boggs out when u give...
  13. Fuel Pump Relay! Please help

    Engine/EFI/Drivetrain
    I was riding on saturday and my LTR was running prime! went to go out sunday to ride and the red light was blinking, so i didnt have power to the fuel pump, so i switched the fan relay and the fuel pump relay to see if it was the relay and what do you know, the fuel pump primed and it started...
  14. Took Fuel pump apart

    Engine/EFI/Drivetrain
    Hello again, i took the fuel pump apart last night and couldnt get a screw out, so i got 3 out of 4 screws out and i pryed it open a lil bit and could see 2 small specs of dirt. Now obviously all the gas drained out. so i put it back togther and fired up and it seemed to have fired alot easier...
  15. Will idle but dies when u give it gas

    Engine/EFI/Drivetrain
    Im new to the LTR community, i had a best friend who passed away back in april, god rest his soul. Me and him always went to the races togther and we were riding buddies growing up. His parents felt it was what he would of wanted so they gave me his 2007 LTR 450 and when i got it i charged the...
  16. Efi management systems

    Engine/EFI/Drivetrain
    Hey guys ive been runnin a power commander IV but i had it mounted in my airbox long story short it got melted by my dasa along with the bottom of my airbox but ive been lookin around since i upgraded to the big bore and cams anyone tinkered with a bazzaz programmer or does any one know if msd...
  17. i need a fuel map please help!!

    Engine/EFI/Drivetrain
    i need a fuel map if someone can help that would be great. mods: yosh full exhust RS5 stage 1 hot cams in and ex PC III cherry bomb every thing else is stock thanks
  18. LTR Running Problems

    Engine/EFI/Drivetrain
    I have an 07 LTR450, stock engine with cherry bomb and sparks exhaust. The quad will fire up but doesn't want to idle. Once it has been run for a bit it seems to idle for the most part. This is not the problem. When putting the quad into gear the rpm's just drop and you can hear them just...
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