Briggs flathead engines

[Flatlives]

This is your clutch model/number for future reference.

 

[Flatlives]

I've had this NOS GL clutch for some time. Maybe a better picture here

NFS

 

[flattop1]

You might want the blue springs .071 diameter .

 

[CarlsonMotorsports]

The blue covered engine has the HL-360A tilly carb and the white covered engine has the HL-314G tilly carb, from my research there both gas carbs. Also does anybody know info on that clutch? All I know is that it’s a horstman 2 disc clutch, I would like to know the engagement rpm on it.

I would suspect that both have been drilled for alcohol....we've used those same carb models for years on kart engines and made them to run on alcohol. Yes, from Ireland, they are set up for gasoline.

As far as the clutch....how low of an engagement do you want?
Peak torque is where your engagement "should" be, but you can make your clutch come in wherever you want with weights and springs.
If you want it lower, add washers to each bolt. 4 washers on each bolt will get you down to around 3800-4000 with .091" red springs that are on it.
To get lower than that, you'll likely want to change out the springs for black ones (.086".) Leave the 4 washers on, especially with the extra toque your engines should make -- you'll want that clutch to stay engaged -- the extra weight helps when over-powering it.

We've got the springs, or any other parts you should need in stock.
We also do clutch machining and blueprinting services should you care to have your clutch gone through at some point.


-----
Thanks and God bless,
Brian Carlson
Carlson Racing Engines
Vector Cutz
www.CarlsonMotorsports.com
Carlson Motorsports on Facebook
32 years of service to the karting industry ~ 1Cor 9:24
Linden, IN
765-339-4407
bcarlson@CarlsonMotorsports.com

 

[FlatheadsForever87]

I've had this NOS GL clutch for some time. Maybe a better picture here

NFS

How much?

 

[stevevaughn31]

Just crank it on gas. If it's rich it's a alkyd carb