- Dec 3, 2000
I was riding a few days ago at the local sand beds and had been riding for about 20 min when all of a sudden the bike bogged out bad (like i left the gas off or something) and just died. Me and my friend tried to start it for like an hour but it just wouldnt. Everytime we tried to pop start it, it would just back fire really loud and when we changed the plug it didnt help. We took the knew plug out and it was pretty dry and only had a little OIL on it, there was no trace of gas at all didnt even smell of gas at all. The compression also seems to be pretty damn low. I was wondering what caused this?... I think i know, i changed the clip on the needle a position and maybe its getting to much oil and not enough gas (would explain the no gas) and maybe all the oil caused the rings to some how get sucked into the piston a little (would explain the lack of compression) but iam stumped as to why its backfiring?? It has strong spark so i dont really think its electrical. Well thats my story, any help would be greatly apprciated and btw its a 1992 KDX200. The piston has about 50hrs or more on it (and i just put it in over the winter . One more question how long do pistons last in KDXs?