300ex Ticking After Valve Adjustment
Just bought a used 01 300ex. It sounded great, no unusual noise coming from the engine yesterday when test riding.
I set the valve clearance today, they were very tight. I didn't measure them before adjusting, but I couldn't get an .004 in them and all 4 took at least 2-3 full turns on the adjuster screws to get to .004.
When I checked TDC I couldn't move the rockers at all, so I went another rev counter clockwise. Still everything was tight so I cranked another rev and watched the rockers, and the next time at TDC it looked like the rockers and valves were all up/seated so it I believe this would be the tdc compression stroke. All this was on a cold engine, hadn't run for at least 12 hours.
Cranked it to warm it up for an oil change and it started ticking pretty loud. It was doing nothing like this before. Idle was now also much higher, but I had just replaced the very dirty air filter with a fresh K&N, so I'm thinking the new K&N might be the cause of the higher idle.
Rode around the yard for a minute, don't notice any loss in power but didn't have a chance to get into 3rd very much. Ticking seems to be much better with the fresh oil (old oil looked pretty bad but didn't notice any metal shavings) and after 5 minutes of warming up, but it's still there and definitely was not there yesterday.
Is it possible I was still not on the compression stroke? Wondering if I should pull the plastic again to check.
Anything else I need to look for or possible cause?