2 stroke questions

[Street Ryderz]

Thanks for the video, I appreciate the time of you finding it. I found another video on the forum of someone drilling there crank to balance it but didn't know about it.

No problem, I made that video a few years ago just to help people see how simple it was to do and seeing helps rather than just trying to explain it.

 

[Karl Snarl]

The next time you are into your engine @Karl Snarl can you take some pics of your timing magnet set up & are you still using a key?

Im using a star washer with a flat washer on top. Then mark where the keyways are in paint marker. Then just figure out how much I wanna go. Nothing perfect and I can't tell you how many degrees . Through trial and error I slowly went back about a key and a 1/4 in width. She runs smooth and winds up nice, no more ring ding idle. Just got back from a bday party, I brought the motorized bikes, gas and *trees*. The magnet trick was the key. An let me tell ya she winds up good now. Nice and perky with not to much heat. Only difference was the pipe was a tad hotter than usual. Which is the timing doing that. She did loose a tiny bit down low but made up for it in mid and top.


Edit: i bend a tab or two in on the washer to go into the magnet keyway.

 

[DieselTech]

So looking at this pic I took, do I need to rotate the magnet the way I got yellow arrow pointing? Or the opposite of my yellow arrow.

 

[Karl Snarl]

Towards front is tard, towards tail is
advance.


Don't do what I did. Make sure you mark the front side of the magnet so you install it correctly when you put it back on.

 

[DieselTech]

Yeah I've heard of that & it wont start I believe. So I need to retard my timing correct.

 

[Street Ryderz]

Yeah I've heard of that & it wont start I believe. So I need to retard my timing correct.

5 degrees is good it won't hurt the bottom too much and as Karl said smooth it out some with better mid and upper, especially with a pipe.

 

[Chainlube]

Yea, but do it increments until you find the sweet spot.

 

[DieselTech]

Thanks guys for the help, I've been doing lots of searches reading old threads on tuning & other stuff. You say 5° timing, whats that in movement? like 1½ keys width or less?

 

[Street Ryderz]

So looking at this pic I took, do I need to rotate the magnet the way I got yellow arrow pointing? Or the opposite of my yellow arrow.View attachment 159037

Yes, you got it! 5 degrees is about 3/4 of the key's width.

 

[DieselTech]

Couldn't a guy also slot the armature & rotate it in opposite direction of magnet, to help adjust timing?