---------- Post added at 08:36 AM ---------- Previous post was at 08:34 AM ----------
Tried removing it with screw extractor with no luck so far
---------- Post added at 08:47 AM ---------- Previous post was at 08:36 AM ----------
long story short.........So we got out kart up and running but we noticed that the clutch bolt that came with the TC did not fit...... we get a 5/16 24 fine thread in two lenghts and installed the shorter one 1st... noticed it was coming loose so installed the longer 1 with a few flat washers and a lock washer......... got about 2 hours ride time and bolt snapped off while riding
I went and got a Grade 8 bolt to replace the Grade 5 or whatever junk comes with the chinese parts for this reason.
You could try left handed drill bits. Start with small bit for a pilot hole then step up to whatever is appropriate for 5/16-24 tap so you can chase the threads afterwards. Just make sure you use a a good center punch to get it as close to center as possible. You make get lucky and the bolt will start to back its way out as you are drilling. That is a good feeling lol.
Beyond that you may have to take the crank to a machine shop.
Id say take it to a machine shop... bring a case of beer to help sweeten the deal(IM assuming your legal drinking age)...
Machinist hate these darn bolts..... but they might have a spark eroder to dig it out....
I did not want to lose it if it can loose while riding...... so i figured if i use a longer bolt i would see it coming out before the drive clutch flew off..... bolt broke and it happened anyways
One thing you got going for you is the bolt looks fairly new and not rust frozen in, so it should come out fairly easy using one of the many methods mentioned.
The community has some fine info here. I like the washer idea a lot (Flyinhillbilly) which has you welding from the inside...
Texan is right; you could have a worse scenario if that bolt was old and rusted on. The only thing I would do before (or after) using these methods would be to tilt the kart up and flood the bolt and threads with penetrating fluid/WD-40/PB Blaster, etc just to make it as easy as possible.