Well that's not my engine, I just found it on google images. I'll run to my grage to snap a few pics real quick, but it's freezing outside. Pictures should be up in 20mins.
Looks similar if not identical to mine.
When engine is cold and you try to start it, does it "pop" or "kick" at some point? Should happen after 1 to 3 pulls.
Or does nothing happen?
Watch beginning of my youtube video.
On 2nd pull, engine "pops" or fires.
Do you get this "pop" at all when trying a cold start with first couple of pulls?
No, but when it was new it did. I think it did a few days ago when I tried to get it running, but it took too many pulls untill I noticed a difference in the sound.
How would I go about checking that. I think I read somewhere to spray it with WD-40 and see if it bubbles? If I found a leak would I just need some new gaskets?
Tyler is probably right but could be some other stuff also.
Gaskets will have to be visually checked along with engine seals.
Check that carb mounting bolts/screws are snug.
Check for fuel flow at carb. Check vent tube for clog.