chapsta

Could i have messed up with the timing chain thats what noise is . I made sure when bolted back up i was on the line in the timing gear the chain and cog turned few times round tho when bolting up but the mark nerver moved off the line in the crank case . Also should i have done anything to the valves after the rebuild because i nerver touched them . Would any of this stop it from starting

When i checked oil there was a bit in there . When i bought bike got told piston was changed as bike had a compleate rebuild . Ether way the bike ran 4000 miles to it quit on me thats when i checked piston . . The weekend i put some oil down the plug to aide conpresion and checked the fuel pipe still nothing and tried to bump again in 2nd and 3rd there is a bit of a screeching noise when trying to bump not sure if this the starter motor . Battrey bit flat so will charge weekend and try bit off easy start .

When i checked oil there was a bit in there . When i bought bike got told piston was changed as bike had a compleate rebuild . Ether way the bike ran 4000 miles to it quit on me thats when i checked piston . . The weekend i put some oil down the plug to aide conpresion and checked the fuel pipe still nothing and tried to bump again in 2nd and 3rd there is a bit of a screeching noise when trying to bump not sure if this the starter motor . Battrey bit flat so will charge weekend and try bit off easy start .

Hi there i have a 2010 fuel injecton model ybr. Last month it cut out on my commute to work . I was low on fuel and it was raining so done all the basics new plug new fuel checked wires etc nothing still so i look at the piston and it was chewed up and cracked. so ordered the 150 piston and cylinder kit fitted no problems went to start still wont start on button or bump start . I pulled off the fuel pipe at bottom to check fuel and it shot out with presure like theres a block somwhere in manifold but got no carb . Any help or ideals as i need this for work monday . Thanks adam

Hi all first time on hear . I own a 2010 ybr 125 and im from london england . The bike is not working at present thats why i joined for help from you guys to get back on the road .