NEED HELP TIMING AND SETTING VALVE CLEARANCE ON A LONCIN250CC WATERCOOLED ATV ENGINE .SHOP PERSON SAYS IT HAS A SPITBACK AND POPPING SOUND FROM CARB ,I HEARD IT ALSO,THEY HAD MY ATV SINCE LAST JUNE ,WHEN EXHAUST STUD BROKE FROM HEAD ,THEY REPAIRED IT BUT NOW HAVING PROBLEMS STARTING IT .BOUGHT IT IN APRIL 2008 NEW .I WOULD LIKE TO RIDE IT THIS YEAR AT LEAST.THE GUY IS AGOOD GUY ,CAROLINA EAST&TRUCK ACCESSORIES INC. .NEED TO HAVE FUN WITH MY CHILDREN SOME THIS YEAR ,WE ALL HAVE 4WHEELERS, JUST MINES NOT READY YET. PLEASE HELP, FROM TARBORO,N.C. RONALD HARRISON.THANK YOU.

 

to put it back in time there will be markings on the cam gears which need to be in 12 o clock position, be fore you start to do it make sure the piston is down, its different with different bikes its so easy if you have a service manual, im not ase certified in atvs but i am going to school to be a car mechanic, and ive been rebuilding motors since i was 13, but go buy a service manual or goto shop and have them make u a copy of timing info pages they will also have diagrams too