This is what happens when you have unwanted water sitting in ur engine for 4 months.
Already replaced the aftermarket piston and rings along with teh cam chain and teh water fubared the cam chain. Problem started when i realized i had a bad head gasket. Well after the gaskets, piston, rings, cam chain, carb clean,removed valves and cleaned, shimmed, new plug the bike would not start. I just got an email from my engine guy this morning that said this
" Bad news, unable to start YZ. Re-checked valve clearance, spark among other things. I only get a rare pop when trying to start. Tried to do a compression check but this motor has an automatic decompression system. With auto on I get 20 psi with it off I get 90psi. Generally you need 100 psi to run and this would be low performance. Unfortunately this is not that great of a test since the rings are not broke in and valves may seal better after running. Also did a leak down test which shows moderate leakage. I attached a pic showing that the valves where rusted in head and needed to be driven out due to water ingestion in combustion chamber. Also adding salt to the wound is that just from kicking coolant is leaking from the base gasket area and water pump mechanical seal. This might seal up once the engine runs.
At this point unfortunately I would recommend taking engine apart again, install new valves, new guide seals, getting a valve job on head, replacing 2 seals and gasket for water pump leak. Seals and gaskets around $70, Valves will have to check but if Titanium around $100 a piece x5 plus head work around $300. I have not checked prices in awhile so these may be off. This is not the best situation due to the fact that this head has suffered damage from water scoring cam bearing surfaces and possibly warpage to head surface."
I hate when shit like this happens. Ugh. At least its before the season starts and I have time to get it fixed and pay for it.
So the question I have is after bringing in my bike for this work to be done what is the going rate for work like this do be done. Granted these are not stock parts since it needs aftermarket piston rings and gaskets. With all this work done is this considered a full rebuild? LOL