Re: Timing questions

Posted by Steve W (NY) on August 27, 2004 at 06:56:05 from (24.213.210.222):

In Reply to: Timing questions posted by ffolkes on August 27, 2004 at 01:42:37:

It's frustrating isn't it? I just went through this with my BN, and she's purring like a kitten now. Here's all the mistakes I made.

As for getting the timing on the font gears...there are two sets of marks. One with 2 punch marks, and one set with one. The cam and crank are aligned to one set, and the governor to the other. The marks were faint, so I can see how a mistake can be made. Luckily, unless you took the cam out, the cam to crank alignment is OK, and you can see the alignment of the gov/mag drive gear by removing the governor. I'd double check this first.

Get your piston at TDC on number one. A hand crank maes this easy. Take all four plugs out. It's not neccasary, but again, it makes it easier. Put your thumb over #1 (front of engine), and rotate the engine, til you can feel air being pushed out at your thumb. Stop as soon as this starts. Put a smll wooden dowel into the spark hole, and feel the piston come up until it stops. Likely you will have to do this a few times before you get a feel for TDC. If you turn the engine 2 complete revolutions you can be sure you are still in the compression stroke.

Next. The mag turns clockwise looking from the back of the tractor. Look at your cap it has a mark for the number 1 wire at about 2 O'clock looking from the rear. Take the cap off, and the rotate the mag so that the rotor is pointing to this position. I like to "trip" mine and rotate it back a little till it's pointing in the right position.

Put it on. As you mentioned, it's keyed, so if you do the above steps, there isn't much chance to screw this up.

The firing order is printed right there in big letters on your block. Connect the 2 o'clock connection on your cap to #1, and following clockwise, connect the rest of the plugs in order. Now, it should start.

Of course mine didn't. No matter what I tried it wouldn't fire. I finally took the plugs out and sprayed a little gas in each cylinder, closed it back up and it fired for a rev or two. Darn....not getting gas. I took the carb off, dropped the float bowl, and then took out all the jets, soaked them and put them back. My problem was that there is a tube with a bunch of holes that meters gas, and they were all plugged. Blew those all out, made a gasket for the carb, put it on, hit the hand crank.....purrrrrrr!

Now about the hand crank.....I don't recomend the hand crank for your first start up, as the timing will only be close. A backfire will cause a kickback, which can hurt and break stuff (arms, thumbs, etc.)

Let us know how it goes.

Take Care
Steve

Follow Ups:

• Right about that, but still no go ffolkes 08:04:12 08/27/04 (1)
  • Re: Right about that, but still no go MagMan 09:49:50 08/27/04 (0)

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