Kawi2strokes.com Forum

Thanks Jim, we are on the same page. You need the set screw so the indicator can be positioned after you screw in the adaptor. (I couldn't find anything that you could just buy in Aus. on the Interwebz, I'll finish making the one I started.) I'll start at 3.5mm B4 top centre.....

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"One day, your life will flash before your eyes. Make sure it's worth watching." : anon.

I'm surprised that timing lights aren't more common. I still have one (powered, inductive) from 40 years ago.

Haven't done it yet but I guess the way you do it with a timing lights is;
1 - connect timing light (#1?), start engine and check timing.
2 - Shut off bike and adjust timing if needed.
3 - Restart engine and recheck timing.

You iterate through steps 2 and 3 until you have the timing where you want it.

Is there any advantage over using a dial indicator vs a timing light? I always thought that a timing light was better because it shows what the actual timing is.

Also, as I understand it, doesn't the H2 timing change at higher revs? Something a like a 2 degree shift above a set point, maybe 4000 rpm. If this is true a timing light should show this.

Thanks,

Dave

If you want to be accurate you use both. You set the pointer with the dial indicator, then use the timing light to adjust the pickup positions. This can be done for each of the three cylinders separately to make up for things like a crankshaft that's not quite 120 degrees between cylinders.

You can also use a piston stop instead of a dial indicator, setting the pointer for halfway between the two stop points, but when I've done that I've had to mount a degree wheel to find that halfway point accurately.


The H2 system advances a little from idle to 4,000. It's really an artifact of the interaction of the pickup signal and the trigger voltage of the SCR. Timing is set at 4,000 to get into the fixed timing region. Think of the "advance" as a low speed retard that reduces kickback when you're trying to start it.

Not all timing lights do well with a 2-stroke at 4,000 RPM, which is like a 4-stroke running 8,000 rpm. Here's a post I made about that:
viewtopic.php?f=25&t=3619&p=35427 The price has gone up, but otherwise it should be current information.

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If it surges, that's normal, upshift.

I'm setting it up with a dial-indicator for that very first start, first initial set up, with a new crank, new stator, pick-ups, etc. In my experience, you need it running to use a timing light......... ( )

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"One day, your life will flash before your eyes. Make sure it's worth watching." : anon.

Since I don't do static timing frequently enough to need a high quality piece, I made a simple adapter with an old spark plug. I hollowed it out and found a piece of rubber fuel line to sleeve the dial indicator in the hollowed out plug. I then put a bungee cord across it to keep it snug.
Timing light to fine tune will be used later.

Thanks for replies and links guys. All good info. Since my engine is completely apart I will use my dial indicator for the initial setup and then see how the timing light works once it's running. Don't know how my timing light will handle the higher speeds though.

Dave

WELL when do I send the Dial Gauge over Rod !!!??????, message me the address , urs Al

PM inbound in 5 minutes AL! !

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"One day, your life will flash before your eyes. Make sure it's worth watching." : anon.

its in the post Rod

Thanks, AL, you are a good man!!

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"One day, your life will flash before your eyes. Make sure it's worth watching." : anon.