Tips for clutch for my son?

That's how I learned.  The more start-stop you do while he's learning the better.  He may stall a few times,  ride the clutch a whole bunch a few times but that's how 90% of us learned.

Keep it fun, and congrats.

Sounds like you’ve got this!

Enjoy the moment. You’re making memories.

Stoked for you. 

Instruction only goes so far, it’s “feel” that you have to develop. Lots of starts and stops. Once he has a feel for what the clutch does and how to modulate it, the rest will come pretty easy. Be patient and let him have fun.

Oh yeah…. Praise him we he does it right and praise him when he doesn’t.

We did much the same. Planned on grass field for the day. He picked it up so fast he ended up on the track in the afternoon. Made him do loops and stop and start at me. Then do a loop get into second and third. Then down shift when he got to me. The key is patience. They learn it quick proving neither of you get frustrated. 

It’s an amazing feeling going to a 65 from the 50! 
I bought the KLX100L for my son to learn the clutch and he said he would rather learn on the gas gas 65 and we went to a parking lot so he could go nice and easy. They pick it up pretty quick. No pressure

Have him practice taking off hard till he loops it out and he will have it down for life after that. Encourage aggression, it's gonna scare him at first so tell him you want the bike to be scared of him. Also, if u explain that it's the safety button/nitrous button/ power limiter all in one he will like it more. The best thing you can do is teach him to make the clutch, a weapon rather than just necessary for taking off from a stop. It may work best to ride the bike yourself and make him watch you launching it like your insane and then bringing it back with the clutch to understand what your looking for. Most beginners can master the clutch in a day doing it this way in my experience. Make him love the clutch instead of treating it as something that needs to be done with finesse. He will pick up finesse later first you want 0 stalling possibility(aggression). Imho

One of the best days of the journey. The next best day is when they move from an 85/supermini to the 125, first full size bike.

Also, teach him right away that if the throttle is stuck/ "whisky" throttling is occurring and he can't let off/ he is gonna loop out that all he has to do is pull in the clutch and it will save his ass, that it's his friend in a bad situation , as well as the nitrous button. Glorious days for a boy mastering their first clutch. I was 9, my first bike was a kx80 and it ripped lol. My dad just taught me to launch hard, with a lot of slipping the clutch since I couldn't touch the ground well. I loved my clutch, it was the way to make my engine go insane mode haha, and a way not to have to downshift if I was aggressive enough. I have ridden with well experienced adults who experienced stuck throttle or whisky throttle and didn't realize to pull in the clutch because no one ever presented it in that way to them. Don't really have to be that scared of a super fast bike once your taught the clutch is your savior in bad situations.

Make sure he is fully releasing it all the way out.

They are little sponges so they pick it up fast

It’s funny how many moto dads and adults loop out a 65 with that power band. Some good tips in here and a big open flat field is the best spot to start so just pay attention and correct him immediately. Have fun, make some memories and enjoy! 

Get on the bike with him, put your hands outside of his on the grips, and let him feel a smooth clutch release with you while his hand is on the clutch while you release it. 

Do that a few times then let him do it on his own. Thats how I’ve taught kids for a while now as it’s easier to replicate once you have the feeling of how the clutch reacts 

I d say :

Don’t big deal it at all , kids will shock you how

Easily they learn it .

I read all these cutesy methods of learning the clutch and the first day was pure frustration. Day 2 I figured why not ride it like every other 65 kid and just dump the clutch and go. Much better.

There was one thing though that I had the kid do that really made it click. I asked him to just go a foot at a time. Would just let it out enough for the bike to creep forward and pull it back in. After doing that for a min or so, I asked him to go 5’ and pull it back in. Within a matter of min, he literally had over a hundred successful starts. 

The above drill and just standing behind and over him with my hands on his and just slowly letting the clutch out really helped him understand.