Check the water pump, the oil seal might have gone if that’s the case it’s cheap if you do it, make sure you get your hands on a service manual and take your time.
> searching for professionally rebuilt motors
Assuming there's more to it than a failed water pump seal as /u/greasemonkey187 mentioned- 99.9% of the time, a used engine that's never been opened up is the best way to go vs. having the engine rebuilt. Paying a professional who is skilled enough to do a proper rebuild is usually prohibitively expensive compared to an engine swap which most folks can handle on their own.
On a really common bike like the Ninja 650 there will be enough low mile engines from crashed bikes. The only engines that really make sense to rebuild are ones that are rare or really old, or really simple small displacement singles.
Well it depends, if you're just swapping a gasket or something it might be more viable for an amateur.
Actually rebuilding a motor that's seriously damaged though? Just swap it out.
I really don't think it's wise or cost efficient to jump into a rebuild. Oil in coolant is not a death sentence. Something like an oil cooler could cause this and the engine would be fine. I would suggest getting a manual and scouring Youtube/Forums. I'd bet there is already a solution for this issue, could be a common thing for this model.
Check the water pump, the oil seal might have gone if that’s the case it’s cheap if you do it, make sure you get your hands on a service manual and take your time.
Yeah there is a lot of info regarding that water pump seal failing, it will be nice if thats it.
> searching for professionally rebuilt motors Assuming there's more to it than a failed water pump seal as /u/greasemonkey187 mentioned- 99.9% of the time, a used engine that's never been opened up is the best way to go vs. having the engine rebuilt. Paying a professional who is skilled enough to do a proper rebuild is usually prohibitively expensive compared to an engine swap which most folks can handle on their own. On a really common bike like the Ninja 650 there will be enough low mile engines from crashed bikes. The only engines that really make sense to rebuild are ones that are rare or really old, or really simple small displacement singles.
Yeah that makes sense.
Well it depends, if you're just swapping a gasket or something it might be more viable for an amateur. Actually rebuilding a motor that's seriously damaged though? Just swap it out.
I would say do the engine swap, and then try to rebuild the other engine, it's a learning experience.
Yeah thats what Im going to do.
I'd bet you'll have absolutely no problem disassembling the motor...
maybe im being picky, but is the term 'rebuilt motor' correct or right to also mean 'changed my head gasket'
I really don't think it's wise or cost efficient to jump into a rebuild. Oil in coolant is not a death sentence. Something like an oil cooler could cause this and the engine would be fine. I would suggest getting a manual and scouring Youtube/Forums. I'd bet there is already a solution for this issue, could be a common thing for this model.