YIKES!
I have a Wiseco and a manual decompression - but I seldom have to use it. Maybe once in 100 starts does the engine fail to go over the compression stroke.
If you hit the starter button and the engine is on the compression stroke, the starter cannot push the engine over TDC. You should let go of the starter button immediately - then click the bike in gear and bump it forward until the piston goes over TDC. (This can be difficult and potentially dangerous if you stall the bike in traffic). The manual decompression levers that require you to take your hand off the clutch lever to run them are not much better/safer in traffic - I built my manual decompression using a BMX brake lever that allows you to pull the decompression with your index finger while holding in the clutch lever with your other fingers.
I went to the local bicycle store and bought a left brake lever for a BMX bike. (My bars on the Cafe' bike are 7/8" - but I have made a few of these that had the BMX lever bored out to 1" to fit the Savage bars). I made a longer decompression lever that would match the distance between the pivot point and cable on the lever. I had to make a new mount that would put the cable in line with the new lever. The new parts are painted black.
I then mounted them on the engine and I use a bicycle brake cable that I cut to length and soldered on a proper end fitting.
I then mounted the new bicycle brake lever on my clip ons. I had to angle the lever up a bit - so it did not hit the passing light switch when I pulled it in.
I have enough leverage to pull the exhaust valves open with my index finger while my other fingers can hold the clutch lever.