Couple issues.
First is the wood backplate is wrong size. message below shows how to correct. Found that you need a thicker pcs than 1/4". Measure distance for standoff after you put on the first backplate. Could not find the drawing but call the number below and they will send you the drawing file.
Second is a slot needs to be cut for stock muffler to fit but it is OK. Pictures below.
On carb set up mine was streight forward if you have the adapter to turn the carb. Mine came already mounted.

"Adapter Plate Thickness Issue
It has come to our attention that the thickness of the adapter plate for the G23 and G26 engines is too thin to allow the cowling to be mounted properly. We have also found that the inner three holes do not have the proper spacing to mount the plate onto the engine.

To correct this, you will need a 3" by 4" piece of ¼" plywood. Attach a copy of the downloadable drawing listed below to use as a template. You will need to drill 4 - 5/32" holes to mount the plate on the firewall, a ¾" hole for clearance of the crankshaft, and 3 - 13/64" holes to mount the plate on the engine. On the 3 holes to mount the plate on the engine, use a counter sink bit or a 27/64" or 3/8" drill bit to countersink the 3 engine mount holes enough to get the screw heads flush with the plywood.

Then mount this plate onto the engine as stated in the instruction manual in step 4G on page 34. Then use both the plate that came in the kit, and the plate you just made onto the firewall with 4 screws as in step 5G also on page 34.

In some limited cases the thickness may need to be increased slightly to get the cowl on properly, in this case you can add a couple washers in between the plate and the engine.

If you have any further concerns, please contact our product support team for further assistance to resolve this issue. You can call us at our toll free number at 877-504-0233 or email at [email protected]. Be sure to include your name and shipping address. "


Adapter Plate Thickness Issue
It has come to our attention that the thickness of the adapter plate for the G23 and G26 engines is too thin to allow the cowling to be mounted properly. We have also found that the inner three holes do not have the proper spacing to mount the plate onto the engine.

To correct this, you will need a 3" by 4" piece of ¼" plywood. Attach a copy of the downloadable drawing listed below to use as a template. You will need to drill 4 - 5/32" holes to mount the plate on the firewall, a ¾" hole for clearance of the crankshaft, and 3 - 13/64" holes to mount the plate on the engine. On the 3 holes to mount the plate on the engine, use a counter sink bit or a 27/64" or 3/8" drill bit to countersink the 3 engine mount holes enough to get the screw heads flush with the plywood.

Then mount this plate onto the engine as stated in the instruction manual in step 4G on page 34. Then use both the plate that came in the kit, and the plate you just made onto the firewall with 4 screws as in step 5G also on page 34.

In some limited cases the thickness may need to be increased slightly to get the cowl on properly, in this case you can add a couple washers in between the plate and the engine.

If you have any further concerns, please contact our product support team for further assistance to resolve this issue. You can call us at our toll free number at 877-504-0233 or email at [email protected]. Be sure to include your name and shipping address.

Bill