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1st Change Radiator Cap 2nd Pull head and see if you are getting coolant by the O-Rings

clean with contact cleaner then heat it with MAP gas (yellow bottle) and get it about 250 degrees this will get a lot of the oil out, then weld away

Yes, that also can easily be repaired.

Labor and Parts ~$3500, if you can actually buy a new engine from KTM for $3750 that's what I would do, keep the other as a spare or sell parts cases head etc.

Here is my perspective for what its worth... I am 43 with 2 boys age 13 and 14. Unfortunately or fortunately, neither of them took to dirt bikes or motorcycles like I did at their age. Their interest are football, x country and video games. I would ride 4-6 times a year when they were younger but always felt guilty...

Here are some general prices Top End Rebuild Labor $195 [Disassembly, Cleaning & Reassembly] includes replacing Valve Seals and setting valve lash, reusing valves, valve springs keepers and retainers if they are all still within spec. Vertex Piston $75 OEM Cam Chain $30 Cometic Top End Gasket Set $75

$350 is pretty close. Here is a breakdown for what I charged last week on a set of 48mm KYB SSS Forks $117 for SKF Seals and Bushings $25 for 1 Qt Fork Oil $165 Labor $10 Shop Supplies $9.86 Tax/Shipping Bill was $325

If vibration is bothering you, look into Lance Smith's XC Gear Mako 360, its a game changer.

Valve seals, as your bike sits its leaking oil onto top of piston and when you crank it up it burns the oil sitting on top of the piston. If it was rings it would never stop.

If you are burning trans oil, your RH crankcase seal is leaking. Not going to cause the low compression. Make sure you check surface finish on cylinder wall, ring end gap and piston to wall clearance.

Buy a 350 or 450, will be a lot more reliable and less maintenance than a full blow mod 250F.

Its slower than it has been for sure. I have always wanted a smaller bore street legal dual sport, but didn't want to put a lot of $ into one just because it will only be ridden from time to time. Found a 2019 Honda CRF250L with only 747 miles like new, no scratches for $3K a few weeks back...

Yes putting a thin coat of oil on the base gaskets will make them easier to get off at your next rebuild.

Just put a new 3rd gear in a 2023 YZ85LW, tooth broke off.

That can be cleaned up in a lathe, no need for welding. I have a repaired a couple with very similar damage.

This is a known issue on new WP Forks, how many hrs on the bike? KTM/Gas Gas recommends 10hrs before they will address. Most of the time they will get seated in and they will be fine, but if after 10 hrs and still doing they will look into it.

Forecast is looking better, gonna be a warm one, but hey its LL's in August.

Head Gasket is first thought, but also check your oil and make sure it is not milky, could be water pump seal has started leaking.

Check your clutch basket, the YZ's are notorious for the rivets coming loose and it will clank at low idle.

Miller Motorsports Park is OPEN and located in Booneville, MS They are racing this Saturday Night June 8th. Look him up on Facebook. He has a small lite track that is perfect for P-Dubs and then a large motocross track, "Dreamworks" originally built it.