Question about Garden
I have an old Toro 421 with a 5HP Tecumseh HS40-55531 3F.
Engine wouldn't start at all when I got it.
I replaced the carb and it then it took off on the second pull.
I'm trying to tune it up and I'm looking for specs on things such as spark plug choice/gap, point gap setting, oil type/capacity.
Here's what I've been able to gather so far:
Any help would be appreciated:
SOURCE: 93 Vw Fox tune up specs
no points on ur car (check from the center of distributor cap and follw that wire, it leads to the COIL) and gap is usually indicated under the hood on a sticker. Should be right near the front of the hood (on the underside) or just above the rad.
Posted on Nov 16, 2008
Go to toro.com then click customer care, then click manuals and parts. Type in model no. and download the owners manual. This should get you the spark and flywheel gap. Probably still something in the carb. Some orifices are very hard to find and to clean but they must be clean. Also check for dirt dopper nest in the muffler.
Posted on Apr 06, 2009
That's easy man! You will always hear, "You sir, need to gap this or that at EXACTLY .00071542 inches per square meter".
The actual "poor boy fix"-
Put your magneto back on there, and stick a business card from your wallet in between it and the rotor. Let the magneto pull itself to it, you center it, and give it just a hair of breathing room (to slide the card back out). Tighten 'er down, and you got it.
1.- If you can't pull the card out, it is too tight.
2.- If you pull the card out easily, too loose.
3.- JUST enough to pull it out, and have it drag just a bit on the way out is JUST ENOUGH!
Remember, on 4-strokes, they ARE forgiving, and can do miracles even if you try your best to destroy them.
Posted on May 30, 2009
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