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Thread: engine help


  1. #1
    zackesch's Avatar
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    engine help

    i have the trx 2.5 and its having problems. it acts like as if it isnt getting any fuel, but it is. i end up re priming it in order to run, but when i do it runs for a few seconds and dies. i checked for leaks in my fuel line and tank, there is none. i checked to make sure all was tight on my engine, it was. it still is habing issues.

    what shoud i do?
    Im Himmel gibts kein Bier, darum trinken wir es hier.

  2. #2
    laserman2's Avatar
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    RE: engine help

    from what i have been seeing is if you have a priming bulb on the tank most of the people here either change the tank or take out the priming bulb and seal the area that it was in very well and test for leaks
    nitro MT ( MT2), nitro Quake, T-Maxx, nitro rustler and now a HoverCruiser and building a custom hover using GWS fans

  3. #3
    zackesch's Avatar
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    RE: engine help

    i have a primless tank. i blow on the pressure line to get fuel into the engine
    Im Himmel gibts kein Bier, darum trinken wir es hier.

  4. #4
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    RE: engine help

    Do you still have the ez-start on it? Do you cover up the exhaust and crank it over?
    Just because most people agree with something in a forum doesn\'t make it fact.

  5. #5

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    RE: engine help

    sounds like its very lean, or stuffed glow plug .

    Dann

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    RE: engine help

    My 2.5R was doing the same damn thing, brand new at that even. Anyhow, it seems after bashing around, the tranny case hit the rear of the carb, at the time I didnt know. check that cps carb for a crack or 2. Then ten bucks down to hobby shop, get new fuel line and a filter, ofcouse if the carb has a crack, get a new one, OS make good replacment ones.
    Sounds like a air leak of some kind.
    AGAMA Racing
    Horsepower sells engines, Torque wins races

  7. #7
    zackesch's Avatar
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    RE: engine help

    i here a small hissing noise coming from it when i put my ear up to it, all my bolts are tight. i dont know what the hell is wrong. its realy starting to tick me off!!! my carb is fine, its clean and crackless all is how its supost to be
    Im Himmel gibts kein Bier, darum trinken wir es hier.

  8. #8
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    RE: engine help

    Make certain the HSN is at factory settings.
    How is the LSN? If you believe it has fuel when you first try and start it, perhaps the LSN is too lean and the engine is starved after a few seconds.

    How about if you start the engine with 1/2 throttle? If you maintain some throttle will it continue to run or stall?

    Ryan

  9. #9
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    RE: engine help

    i am just about ready to give up on nitro. it has been nothing but trouble since i got one. i had it for about 2 months and i was only able to get about 1/4 gallons through it because somthing was always not working right or broken. i may trade it in for a at rc18 mt.
    Im Himmel gibts kein Bier, darum trinken wir es hier.

  10. #10

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    RE: engine help

    nitro is not for all people some people prefer to stick with electric plug n play. what other problems have you had did you seal you carb

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    RE: engine help

    i would take the whoel engien apart and clean off all of the resedue. thats what i did for the trx i took a dremel to it with a little wire brush. might sound crazy but that resedue in ther can fu*k up an engien prety bad. and the dremel with a wire brush dident hurt or scratch anything. jsut consider cleaning all of the internal parts or the engine.
    eat with the big dog\'s pi*s with the pup\'s

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    RE: engine help

    i would take the whoel engien apart and clean off all of the resedue. thats what i did for the trx i took a dremel to it with a little wire brush. might sound crazy but that resedue in ther can fu*k up an engien prety bad. and the dremel with a wire brush dident hurt or scratch anything. jsut consider cleaning all of the internal parts or the engine.
    eat with the big dog\'s pi*s with the pup\'s

  13. #13
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    RE: engine help

    Oil residue will not hurt a thing and it is there for a reason. I would not want to start an engine dry without some form of oil coating.

    Ryan

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    RE: engine help

    it is not oil resedue it is from the fuel it is red and holds up the piston and coudl even seize it up. it happend to my t-maxx
    eat with the big dog\'s pi*s with the pup\'s

  15. #15
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    RE: engine help

    I have never heard/seen anything other than oil being left in the engine(brown). I would quickly change your fuel brand as there should never be anything red in the engine holding it up.

    Ryan

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    RE: engine help

    Really richen up high speed needle, I live in northern wi and because of cold temps 4 turns out was still really lean, had to go with 5 full turns out to keep it running well when temps were in the 20's. When my engines die out of fuel starvation and I'm still certain it's getting fuel guess what? I'm always wrong if it was getting fuel it would not die when the prime was run out.
    Yeah, I can prolly jump that.

  17. #17

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    RE: engine help


    ORIGINAL: Matt G

    Really richen up high speed needle, I live in northern wi and because of cold temps 4 turns out was still really lean, had to go with 5 full turns out to keep it running well when temps were in the 20's. When my engines die out of fuel starvation and I'm still certain it's getting fuel guess what? I'm always wrong if it was getting fuel it would not die when the prime was run out.


    isint factory setting's 4 turns out on the hi-speed? im just wonderin if if the weather in wi affects it? i live in michigan. and i am about the same
    eat with the big dog\'s pi*s with the pup\'s


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