Apex leakdown help PLEASE!!!

Ok, just doing some routine mait on my 06 Apex with 7,000 miles on it.

Leakdown test was 2%, 4%, 2%, AND 30%. Big problem for sure. I removed the exhaust and throttle bodies. Its leaking out the intake valves. It appears to be all out of one valve. The sled has been sitting since last winter. Looking from the intake side of the head the intake runner all looks clean, No signs of any burn marks around the valve seat.

So my options are a burnt valve/seat, Bent valve, or carbon stuck on the seat/valve. The intake runners are spotless but the piston tops and spark plugs do have a fair amount of carbon on them.

I thought I could remove the valve cover while doing the leakdown test and try and tap on the head of that lifter valve but its very tight to try and get anything down in there.

Before I pull the enigne I think I will spray the valve down with some good top end cleaner, let it sit for a while and then try to blow that out with a blow gun.

Any advise or "been there, done that" would be much appreciated! Thanks Eric

Ive retested that clyinder several times. No the piston is not moving and I can see the cam lobe is not close to trying to open the valve.

I sprayed lube down on top of the valve head and there is only one intake valve leaking. I poured a little top end cleaner down on the valves then turned it over several times and now its soaking.

After doing some searching over on TY I found some post about guys have rust issues on intake valves after sitting over the summer. My sled has sat for over 8 months now but my shop is heated/cooled year round.

If this dont work I will pull the head. Any tips for the timing chain/tensioner/alignment marks. Thanks Eric

UPDATE: Its Fixed!

Sled is not in running condition so i could not run the engine. With throttle bodies removed I preheated the head and valves, then poured some warmed up yamaha ring free down on the valves and rotated engine a few times then poured more ring free on the valve head. Let set for 90 minutes. Open valve, blow off with compressed air, crank engine.

Re-test leakdown= 2%

Thanks for the info. Eric