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Post Info TOPIC: Small engine 2 stroke spark plugs


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Small engine 2 stroke spark plugs


I have 2 string trimmers, neither one would start. I didnt look at the spark plugs and started swapping out plugs etc....Of course now, I dont know what plugs go in them originally....One is a Tanaka and the other is a Ryobi.......I finally got pissed and went and bought a new state of the art 4 stroke Dolmar trimmer....The bugger runs nice, better last 20 years for the $400 I paid....lol

Anyways.......I hate being defeated, so instead of tossing those other 2 POS trimmers, I want to get at least one of them going for my SIL.......I am pretty sure its the plugs. Do you think if I go and get a CJ8 plug, which seems to be the most common of the pile I have and try it....would I blow these things sky high?.....lol



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It may be the plugs, Harry, but my money would be on the low octane corn liquor that we're getting these days under the name of Gasoline - - - - have you taken the carbs off and cleaned them or run any Mechanic in a bottle or equivalent thru them? Two-cycles can be your worst enemy if you ever let them set up for any length of time - - - - OF COURSE, I know I'm not telling you anything new but when mine lay down it's ALWAYS fuel related.

Good Luck and happy jerking !
meller

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That's always ben my problem with trimmers,, I try to keep stabuilt in the fuel, and when they refuse to start I do what Meller mentioned and pour a bottle of mechanic in a bottle in the gas tank and in the carb and let it soak for a day of so,, , then try starting it,,, I now have a electric trimmer because of this hassle,, don't beat the gas one but sure does beat screwing around with a gas one that won't start,,



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Most of those little bitty string trimmers and leaf blowers run real well until they don't!!

There are some reed valves that carbon up. A disassembly, clean up, a new plug and somje degummer in the gas will sometimes fix those little pieces of junk. I've had a Ryobi, Weedeater, Bolens (junk) and at least a couple others. I now have a $300 ECHO along with the similar $300 blower which is what the local yard care guys are using along with Stihl's (couldn't afford them). So far, both start right up after 2 years of benign neglect and probably will ----- until they don't. I generally run oil at 32-1 instead of the recommended 50-1, figuring that the added carbon footprint is better then a shorter life. I had a brand new (2nd tank) Bolens sieze while running at 50-1 --- ;bout yanked it out of my hands



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Dave W (Irelands Child/IC2)

Quando omni flunkus, moritati (When all else fails, play dead - R Green)



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FWIW, I found the carb kit for my son's tiller on Ebay and it did the trick.
Dave, I thought that Echo and Stihl's were made by the same company - - -just different paint and logos???
I've got an Stihl chain saw that I bought in '81 (?) and it still cranks after a couple of pulls but I crank it as least 3 to 4 times a year whether I need to or not.

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Looked at the Stihl...was about the same price as what I paid, but the 4 stroke still needed mixed gas...This Dolmar has a little oil tank and takes straight gas. I will be going out in the shop and fight with those old ones this morning....will probably throw them in the scrap heap this afternoon....lol



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Never heard of Dolmar - but appears to have a big selection and I might just spend more time looking at it when the ECHO goes to string trimmer heaven.

Em, this is what I found about the ECHO stuff:

"ECHO Incorporated was founded in Northbrook, IL, in 1972 as Kioritz Corporation of America and was officially established under its present name in 1978. The company originally was an importer of high-performance 2-cycle engines and hand-held products manufactured by Kioritz Corporation of Japan.  In 1979, ECHO shifted its focus to engineering and manufacturing and began initial production and assembly operations in Wheeling, IL. The first lawn care product it produced for the US market was the curved shaft GT-200 grass trimmer. Soon after, ECHO broadened its product offerings to include chain saws, straight shaft grass trimmers, brushcutters, backpack and hand-held blowers, and hedge trimmers."

My new Husqvarna lawn mower has a 165 Honda engine, same as the new Homelite pressure washer. They both start on the first pull and have right out of the box. I do have to say that the 22" lawn mower could have had the next size engine though as long grass seems to bog it down some.



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Dave W (Irelands Child/IC2)

Quando omni flunkus, moritati (When all else fails, play dead - R Green)



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Interesting, Dave, the reason I mentioned that was I had a good friend back in my hometown of Cleveland, Texas that had a small engine repair shop and he told me that they were the same. It could be like GM and Chevrolet maybe?

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Harry...The very first thing is to use a propane torch, and burn the spark plug totally clean. Check gap, and give that a try. Oil mix usually ends up causing you to do that once in awhile. Especially, if they sit with the oil mix. Even when you shake the gas before you start it. Give that a try.
Example, I was using mine, and went to accelerate, and it died. Tried to start it, no go. Pulled the plug, black. Burned it clean, installed, and one pull, fired right up.smile



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cool demmy w. mine is on the fritz too. boo poured weed eater mix in the mower. it smoked like heck and now it wont start. hahaha, i told him we didnt have any gas for the mower. now he gets it. hahaha, i'll have to clean the heck outs that plug or just go get one. i think my wedd trimmer just needs a new pump bulb. i got fuel on my pincher the last time i pumped it up. it started rite off but died quick ever time i tried it. its suckin air im bettin.

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Yep, that's sure what it sounds like...smile



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I've got a pkg of primmer bulbs left over from hot rodding my son's tiller for Xmas
Since my puter's down, PM me your snail mail and I'll send them to you.

meller

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Took it apart today...Its definitely a fuel problem....Primer bulb seems OK, if I spray a bit of gas in the carb, it will run for a couple of seconds....Took carb apart to clean it, but may have messed up a gasket. Will have to look again tomorrow to see what kit I need.

Will remember the burn the plug trick......thanks guys



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Dolmar is primarilly a chainsaw company, but makes other stuff too

"The first portable chainsaw was invented in 1925 by the German company Festo. The company now operates as Festool producing portable power tools. Two other important contributors to the modern chainsaw are Joseph Buford Cox and Andreas Stihl; the latter patented and developed an electrical chainsaw for use on bucking sites in 1926 and a gasoline-powered chainsaw in 1929, and founded a company to mass-produce them. In 1927, Emil Lerp, the founder of Dolmar, developed the world's first gasoline-powered chainsaw and mass-produced them."

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I think that the name of the Company that made the carb on my son's tiller was Tillotson I ended up swapping emails with a dude that lived there, finally sent him a pic of the carb, he turned me onto what I needed and I found it on Ebay.

Without the internet I would have had to junk it. My son was fixing to spend $300+ on a new one. He has already done a big garden with it this year. Ain't it cool when things go RIGHT for a change?

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