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blew up

Posted: 01:48 pm Jun 22 2014
by kdx220rwheel
just ran across some videos about a 2 stroke blowing up and all the videos sound exactly the same of what my bike did do I really have to re build the whole motor or just the top end get a new piston rings etc.?

Re: blew up

Posted: 02:01 pm Jun 22 2014
by diymirage
im confused

I thought you mentioned you took the cylinder off and inspected everything ?
that should have told you the extend of the damage


I think its time for some pictures of the piston and the bore

Re: blew up

Posted: 02:13 pm Jun 22 2014
by kdx220rwheel
I did ill post some today and everything looks just like it came out of the factory cylinder is checked no scoring not scratches no chunks taking out of the walls or ports rings are light brown tint just like the top of the piston but every video I watched sounded exactly like what happened :partyman:

Re: blew up

Posted: 02:17 pm Jun 22 2014
by diymirage
generally when a top end blows there is serious carnage

now, when it overheats like mine did (you said that didn't sound nothing like yours though) then it might look like you described

can you still turn the engine over ?

Re: blew up

Posted: 02:21 pm Jun 22 2014
by kdx220rwheel
yes sir engine has no marks of seizsure has exelant compression turns over just fine

blew up

Posted: 03:13 pm Jun 22 2014
by kdx220rwheel
I remember now that when I ran it with the fuel on it would flood its self out as herd at the end of this video of my bike and idk if this would have anything to do with the motor doing what its doing

Re: blew up

Posted: 09:26 pm Jun 22 2014
by bufftester
If it sounded like the end of that video, that is when he hit the kill switch. Are you sure you have spark? how did you check the spark? If a 2T blows up, you know when you pull the cylinder off. From the few contradicting pieces of information you've given it sounds as if maybe you have an ignition (CDI/Coil) problem. Have you actually gone through the checklist of items that has been posted several times? Photos?

Re: blew up

Posted: 12:58 pm Jun 23 2014
by kdx220rwheel
photos will b uploaded soon an yeah everythings check an I took the spark plug out but left it in the coil wire an left it dangling beside the cylinder an quickly kicked it with my hand an seen spark off of the spark plug every time I kicked it...it had plenty of spark