lawn boy power

[karl]

Comparison between a 28mm nibbi , and 18mm. The kart has 32mm intake 28mm exh. Also peep the fancy oil drain

 

[karl]

I found cheap 1/4-20 nuts that use a 10mm hex , that helped make it work. Should be quite an improvement over factory carburetor.

Also I posted a thread a long time ago about an Amazon knockoff arc rod. I did build that motor, and the rod is holding up well

 

[karl]

Fork!

Check this hogg regrind job, from .230" lift to .340" on a gx200 cam. " precision"

 

[Denny]

Did you have that dude that smoked skoal do that for you?

 

[karl]

Come on now , I did a much better job than freelancer or whomever that character was haha.

I added weld to advance the intake lobe and spread the lsa. The lift gain was ground out of the base circle. I left the exhaust alone so the compression release works. Since it will be running over 10 to 1 I added more overlap.

I put it in a test motor and spun with break in lube, on a spare lifter, with spring load at 2k for half an hour.
I think it's gonna rip.

 

[karl]

It's tight

 

[Denny]

Bob’s head is spinning right now!

 

[karl]

Drive wheel?

 

[Denny]

Could be?

 

[ezcome-ezgo]

Drive wheel?

Don't see it.

 

[karl]

Don't see it.

Use your good eye , sir

 

[ezcome-ezgo]

Like the sun rising at dawn, I see it. I SEE IT!

 

[karl]

Close enough

 

[karl]

 

[Denny]

Is that going to work with the 2 stroke?

 

[karl]

Nope.

After a couple stays in the nut house I can finish it up

 

[Denny]

Where does the Lawn Boy come into play?

 

[karl]

Is the lawn boy in the room with us now?

 

[Denny]

No. So you baited and switched us.
It’s ok, I like this build too. Now where does the lawn chair go?

 

[karl]

My brother would not be happy if I stole the engine off his ditch mower.

So now accepting donations of lawn boy duraforce mowers, ideally a pair, and lawn chairs!