Cylinder rebored - 2002 Yamaha XVS 1100 Dragstar Classic

I need cylinder rebored to organial rm65

it is because of your cylinder problem,you have to rebore the cylinder and install new piston and valves..

carbon on sparkplugs are caused by oil in the combustion chamber.

here are some things to do:
1. replace the sparkplug
2. replace your head gasket
3. check if your ignition timing is correct (timing in the distributor, camshaft, and crankshaft)

if these does not solve your problem, try this:
1. have your cylinder head checked for leaks/cracks
2. replace your piston rings

lastly, if all of these dont work, this is the solution (but quite pricey)
1. have your head rebored. reboring the cylinder head means making your combustion chamber wider so cracks/leaks on the wall will be removed.
2. after rebore.. you have 2 options: resleeve or replace piston rings. Resleeve means inserting sleeves in the bored chamber to replace the removed part. replacing pistong rings is also an alternative since your old one will not fit anymore ot the rebored head.

common causes of carbon deposit in spark plug:

1. blown head gasket.
2. faulty piston ring.
3. cracks/leaks in the cylinder head. this is quite serious.

possible solutions for number 3 are:
1. resurfacing of cylinder head
2. reboring of combustion chamber
3. resleeving/replacing of pistons.

Replace the sleeve is the only option - I think there would not be enough cylinder wall left if you rebored it as it is a sleeved cylinder it relys on the sleeve for extra wall thickness and strength you can rehone the sleeve if it is not too badly scratched you can get honing tools around $80 ish? they fit into cordless drill

hi, break in period is comonly known as running the bike in, if you have only replaced the piston and rings, and not had the cylinder rebored, then take it easy for a couple of tanks of fuel while the rings bed in, when the cylinder is rebored we run in the machine as the clearences between the piston and cylinder are much tighter, heat seizure can occure when the break in period is ignored. hope this helps , paul

Clean all the dirt and grit off the cylinder, coat the cylinder wall with motor oil and install piston,

Sorry for your loss,but sounds like an expensive fix.new crank,piston, maybe head,camshaft,cylinder rebore,not good at all when ran dry of oil,not good.........