You want it at (or near) peak torque ~4000 rpm on a stocker. That's where ignition timing is most critical.We all know that flathead coils retard as RPM goes up and the only dependable way to properly set timing is to find and mark the flywheel with a timing light. But at what RPM do you make the mark?
Does this hold true on gas?You want it at (or near) peak torque ~4000 rpm on a stocker. That's where ignition timing is most critical.
The mark itself is just a reference. The actual firing point is as the trailing edge of the magnet is directly under the right hand most edge of the D shaped pick-up module (located under the coil body.) Most builders will simply place their chalk mark on the flywheel at the right coil leg for easier visibility.
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Thanks and God bless,
Brian Carlson
Carlson Racing Engines
Vector Cutz
www.CarlsonMotorsports.com
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32 years of service to the karting industry ~ 1Cor 9:24
Linden, IN
765-339-4407
bcarlson@CarlsonMotorsports.com
Thank you Brian. Hey do you stay pretty busy during the winter? I have an idea but I need someone like you to complete the couple things I'm not able to pull off due to lack of machines and of course lack of skill an as ability. If you had time could you do some work on a 3 hp? Wanting to deck block, install guides, weld and chamfer lifter area, align bore and hone cylinder correctly, as well as all other places needing honed. Also set timing up correctly like you were just explaining. Possibly some other things that I'm sure I am missing. I'm sure your wondering why all this on a 3 horse? Well I kinda like em. I have plenty of raptors on the shelf from bone stock to a supposed national level. But that's been done b4 plus they are to tall to fit in frame, and I hate to admit it but for this mini bike I have it's has to much donkey behind it to even enjoy it. Hope you can help.Yes sir.
If it's anything like the past couple of years, I doubt it, but don't rule us out. We can do all that, it's just a matter of how long you care to wait for it. I keep telling myself that i want to "slow down" a bit, but it never seems to work out that way.Thank you Brian. Hey do you stay pretty busy during the winter? I have an idea but I need someone like you to complete the couple things I'm not able to pull off due to lack of machines and of course lack of skill an as ability. If you had time could you do some work on a 3 hp? Wanting to deck block, install guides, weld and chamfer lifter area, align bore and hone cylinder correctly, as well as all other places needing honed. Also set timing up correctly like you were just explaining. Possibly some other things that I'm sure I am missing. I'm sure your wondering why all this on a 3 horse? Well I kinda like em. I have plenty of raptors on the shelf from bone stock to a supposed national level. But that's been done b4 plus they are to tall to fit in frame, and I hate to admit it but for this mini bike I have it's has to much donkey behind it to even enjoy it. Hope you can help.
It seems like it.Brian sometimes works 30 to 40hours a day.
Do you have a shop rate or a standard charge for each service preformed?If it's anything like the past couple of years, I doubt it, but don't rule us out. We can do all that, it's just a matter of how long you care to wait for it. I keep telling myself that i want to "slow down" a bit, but it never seems to work out that way.
Yes, we have rates for installing valve guides, align boring, honing, assembly, etc.Do you have a shop rate or a standard charge for each service preformed?
Most do....but not all and then there are a few that will numb your arm when you grab the 18" long zip tie to pull the plug boot off...just sayin'We all know that flathead coils retard as RPM goes up and the only dependable way to properly set timing is to find and mark the flywheel with a timing light. But at what RPM do you make the mark?
On a flathead with the oem coil, this is correct. (I wonder where you copied that from?)The actual firing point is as the trailing edge of the magnet is directly under the right hand most edge of the D shaped pick-up module (located under the coil body.