Rebuilding an old trimmer

[Scott P]

How hard is it to rebuild/tune-up a string trimmer? I was given a Shindaiwa F-20 string trimmer. At my best estimate, it is 15-17 years old and has been used in that span of time. I used it a bit this spring, but it needs some work. The throttle is a bit sticky, the primer bulb cracked and broke and the line was dried out and cracking.

The model is so old, that my local dealer didn’t not even have a parts list for it. I printed one off their website, so I can take it in for reference. I am just wondered if I should rebuild or replace anything else. I’m fairly competent mechanically and would enjoy the project.

 

[7TFord]

I had a Stihl that was only 6 years old and wouldn't run right either, and was a discontinued model even then. A new carb kit didn't help, which is what yours is likely going to need as well. I sold it for $30.00 to a guy who only wanted the recoil and bought myself a four stroke Honda trimmer. Play with your trimmer if you must but have a new one on hand to use on your lawn and then when you've had enough throw the old one away!!

 

[Cressida]

quote:

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Originally posted by Scott P:
How hard is it to rebuild/tune-up a string trimmer? I was given a Shindaiwa F-20 string trimmer. At my best estimate, it is 15-17 years old and has been used in that span of time. I used it a bit this spring, but it needs some work. The throttle is a bit sticky, the primer bulb cracked and broke and the line was dried out and cracking.
.

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I have an older one too and it is an S-20. They tend to tell me it is basically the same as the T-20 which is still listed on their records.

Mine has a leaking gas tank and broken throttle switch but I still use it for a small yard. The parts do cost a fortune (plastic gas tank around $14 and that is without cap) and it can quickly get expensive replacing just a few parts. If yours is like mine the engine cylinder and piston is still in good shap

 

[Scott P]

This belonged to my grandfather, but I think it was used only once or twice. It will start anf run quite well. The throttle is a bit sticky, but I think some cleaner will take care of that. I'm hoping I can get away with just a new head, cutter and priming bulb. That shouldn't cost me too much. I just hope they can get parts.

 

[tmorris1]

quote:

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The parts do cost a fortune (plastic gas tank around $14 and that is without cap) and it can quickly get expensive replacing just a few parts

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That doesn't seem that outrageous. You should try and by motorcycle parts.

 

[MikeR]

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That doesn't seem that outrageous. You should try and by motorcycle parts.

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... but you can't go out and buy a new motorcycle for less than $100.

MR

 

[Scott P]

I just orderd $53 worth of parts for my free trimmer. This includes a new primer assembly, cutting head, line cutter and one other thing that escapes me.

The thing has very few hours on it. It just is 12-15 years old. I'm hoping that these parts will have it running like new. I should get a new spark plug while I'm at it.

 

[harrydog]

I know where you're coming from. I have an old T20 that needs some work to get it running. I'm pretty sure the only problem is old gas that gummed up the carb. Otherwise, it's in good shape. These are well made, commercial grade machines, and it seems a shame to toss them out if they can be fixed.