Notices
 

Thread: need help with 25cc homelite

Page 1 of 2 12 LastLast
Results 1 to 25 of 41
  1. need help with 25cc homelite 
    #1
    Join Date
    06-09-2003
    Posts
    1,229
    I can get the engine started easy but as soon as i take it off choke it dies... i also have no control over the throttal (servo is fine)


    i think maby i put to much oil in the gas? anyone have any ideas?


    thanks
     

  2.  
    #2
    Join Date
    06-04-2002
    Location
    Belforest, AL
    Posts
    2,051
    This happened to me with my Weedeater engine I was going to put in my boat. Never got it finished because I fried the engine.

    I believe it's to lean. Because when the choke is on that allows less air, and a more "ideal" setting which it ran on. And when you increase the air (open choke) it becauses to lean. So just try and richen it up a bit.

    -Todd
     

  3.  
    #3
    Quote Originally Posted by scorpien boats
    I can get the engine started easy but as soon as i take it off choke it dies... i also have no control over the throttal (servo is fine)


    i think maby i put to much oil in the gas? anyone have any ideas?


    thanks
    I have a sx-135 homelite bandit that was doing the same thing. I just rebuild the carb and change the intake gasket.No more problem after that. I'm also using Amsoil 100:1 syntetic. (ieverything for about $20)
     

  4.  
    #4
    Join Date
    06-09-2003
    Posts
    1,229
    i rebuilt the carb and there dident apear to be anything wrong with it.... it was clean...

    how do i richen it? is it like a nitro engine? i am new to gas boats
     

  5.  
    #5
    Join Date
    04-18-2004
    Location
    Colorado
    Posts
    1,538
    It is similar to a nitro - unscrew the mixture needle(s) to richen it. I would try going back to factory settings.
     

  6.  
    #6
    Join Date
    06-04-2002
    Location
    Belforest, AL
    Posts
    2,051
    That's if you know the factory settings.

    -Todd
     

  7. From the manual 
    #7
    Join Date
    02-15-2004
    Location
    Lawrenceville, Ga
    Posts
    164
    I happen to have a Prather homelite with the manual the book says.

    Start with the low speed screw open 1 1/2 turns from closed.
    Start with the high speed screw open 1 Turn from closed.

    Hope that helps.

    PS the low speed screw is closest to the engine.
    Last edited by Icman69; 11-21-2004 at 08:42 AM. Reason: Left something out
     

  8.  
    #8
    Join Date
    08-03-2004
    Location
    Athens, TN
    Posts
    408
    How do you know which is low speed and which is high speed needle?
     

  9. Screws 
    #9
    Join Date
    02-15-2004
    Location
    Lawrenceville, Ga
    Posts
    164
    The low speed screw is closest to the engine.
     

  10.  
    #10
    Join Date
    06-09-2003
    Posts
    1,229
    i don't know where these are but i think i have a good idea there is two of them, one is black the other is red and they have springs on them....

    thanks for the help
     

  11.  
    #11
    Join Date
    04-12-2002
    Location
    Winter Haven, Florida
    Posts
    367
    Sounds like your carb's equipped with what's called "limiters" in that those red/black pieces are plastic caps attached to your twin mixture screws. If you pry off (carefully) the red/black caps you'll see the high/low mixture screw slots underneath, plus if you look closely there'll likely be a "L" and "H" mark on the carb itself at the base of the screws. Once the caps are off, turn the screws in til they lightly seat against the springs, then back 'em out two full turns per screw and try running the boat.

    Hope this helps,
    RickE
     

  12.  
    #12
    Join Date
    06-09-2003
    Posts
    1,229
    thanks, ill try that as soon as possible
     

  13.  
    #13
    Join Date
    06-09-2003
    Posts
    1,229
    well i got one limiter off... but the other is like a black piece of steel... i cant get it off and i cant turn it, even with plyers...

    this is a pic with the red thing on.. there was also a white plastic cover around the needles, i took it off....
    Attached Images
     

  14.  
    #14
    Join Date
    06-09-2003
    Posts
    1,229
    this is with the red thing off
    Attached Images
     

  15.  
    #15
    Join Date
    06-09-2003
    Posts
    1,229
    i dont know what is up with the black cover or whatever it is... as you can see i shaved off the coatting trying to get it off with plyers
     

  16.  
    #16
    Join Date
    04-12-2002
    Location
    Winter Haven, Florida
    Posts
    367
    If you can get just one of the limiter caps off you should be able to adjust both needles-try it. That's not a Walbro carb you've got there, it looks more like a ZAMA/type carb, so, there's less knowledge of these in RC boats as the Walbro is #1. with most gas boaters.
    RickE
     

  17.  
    #17
    Join Date
    06-09-2003
    Posts
    1,229
    if i can't get it to work where could i get a walbro?
     

  18.  
    #18
    Join Date
    04-12-2002
    Location
    Winter Haven, Florida
    Posts
    367
    Call Warehouse Hobbies here in Florida-they used to use Homelites for all their boats and sell the Walbro of choice-but give them the specs on your engine to make sure that the Walbro will work on your powerplant.
    RickE
     

  19.  
    #19
    Join Date
    02-15-2004
    Location
    Lawrenceville, Ga
    Posts
    164
    My Homelite runs a 167 Walbro and it works great. it's a little pricey at WHH but the have a 175 which will give more power for less.
     

  20.  
    #20
    Join Date
    06-09-2003
    Posts
    1,229
    icman what kind of homelite do you have?

    i found two of those carbs on ebay....

    http://cgi.ebay.com/ws/eBayISAPI.dll...sPageName=WDVW

    is that the one?
     

  21.  
    #21
    Join Date
    06-09-2003
    Posts
    1,229
    i tried starting it with the L needle 2 turns out... it revs up and then dies....

    i think maby i should just get a zenoah 260 because i cant figure out what is wrong with this engine!!!
    Last edited by scorpien boats; 11-23-2004 at 09:17 AM. Reason: spelling error
     

  22.  
    #22
    Join Date
    06-09-2003
    Posts
    1,229
    alright forget all of that nonsence i just posted.... i got it to run nice... even off choke... i have throttal control now. The only problem is that after I get to about half throttal it dies... i think it just needs a little more tuning


    thanks so much for all of your help
     

  23.  
    #23
    Join Date
    02-15-2004
    Location
    Lawrenceville, Ga
    Posts
    164
    I have a Prather 30cc Homlite but the carb I use will work on either one. It sounds like you have your high speed needle set to rich and are flooding the engine. Is this a new engine you are working with? If it is used you may want to check the gasket and seals on the bottom end it could also be she is leaking air on the bottom end which will cause real weird problems like you are having.
     

  24.  
    #24
    Join Date
    06-09-2003
    Posts
    1,229
    no its used i will check anyway though.
     

  25.  
    #25
    Join Date
    10-14-2004
    Location
    Sweden
    Posts
    225
    Check if the carb is tightened up properly. If you get airleak between the intake and the carb, you will get all sorts of freaky problems. Other than that, my best bet would be to just keep tuning the carb-needles. Get it running rich on both needles, and then start leaning it out until itīs working.
     

Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •