my pull start some time work other time doesn't. it seem when pulled there is nothing to catch
i have to turn the flywheel some time it work. my ofna ultra lx comp. [&o] i have lots of fun but spending lots
of time to get it started. my first car thank for the time.[8D]

That sounds like a one-way bearing Problem take your one-way bearing out from the pull-starter (on a stock force .26 should look like a hex shaped nut with needle bearings on the inside), soak the bearing in de-natured alcohol for a couple hours then let the bearing dry overnight, re-install the bearing and your problem should be fixed.