[Shop-talk] string trimmer engine won't run
Pat Horne
pat at hornesystemstx.com
Thu Mar 25 06:40:36 MST 2010
Brian,
Here are a few things to check:
Fuel filter. Don't rely on blowing through it, pour fuel through it, it
should run right through.
If there is a problem with the shaft you should feel resistance to
turning the cutting head by hand. There is a centrifugal clutch between
it an the engine.
Try another (new container of fuel/oil, just in case something is wrong
with what you have.
Peace,
Pat
Thusly spake Brian Kemp, On 3/24/2010 11:21 PM:
> List,
>
> I used the trimmer with the stock string head around the yard then
> installed a Shakespeare Heavy-Duty Brush Cutter
> (http://www.lowes.com/pd_79979-42694-14872_0) in place of the string
> since I needed to cut more than a few weeds going into the canyon. I
> do not recommend this cutter since you will be spending $8 for
> replacement blades any time you hit the ground or something heavier
> than a weed.
>
> I had new gas and mixed the oil as I've done for years. After about
> 10 minutes of use with the brush cutter, suddenly the trimmer lost
> power and stalled. I found I could go to full choke, pull the cord,
> then go the half choke and pull the cord and have it run normally for
> a few minutes. No choke and it died. Once I hit a heavy patch of
> brush, it would loose power and only idle. If I pulled the throttle
> it would stall. I repeated this several times, with a shorter run
> period each time till I couldn't make the engine run. Aside from the
> muffler area, the engine didn't feel all that hot when I got it back
> to the garage.
>
> One of my thoughts is that the cutter head damaged the trimmer shaft.
> The brush cutter was a bit more rotational mass and quickly became a
> bit out of balance when the cutter blades became bent or bits of the
> plastic came off. Long thick grass also got wrapped up in the head
> and significantly loaded down the trimmer, requiring me to shut it off
> and clean out the grass. Will damage here cause the trimmer to stall
> when the throttle is pulled or the choke is in run position?
>
> Thanks for any advice,
>
> Brian
>
--
Pat Horne, Owner, Horne Systems
(512) 797-7501 Voice 5026 FM 2001
Pat at HorneSystemsTx.com Lockhart, TX 78644-4443
www.hornesystemstx.com
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