That looks about the right tightness right to me.

No theyre not close. Need cut and rewelded

Youd have to swap the entire motor. Ive got a kx450 and kx250 fully apart and theres just no feasible way to put a 450 top end on a 250 bottom.

Probably need to set your float height by adjusting the tang that holds on that valve.

Lot more to fluids than viscosity.

That makes sense. Leads me to another question, what about bolts that have been reused over and over? That coating wears off. You either need to buy an entire new set of hardware for your bike or put a coating on. Manual doesnt say replace every bolt. ... more »

Just want to throw this out for discussion. Putting steel bolts into aluminum uncoated will facilitate corrosion and possibly seize the bolts. When you do finally get the bolts out theres still going to be residual corrosion in the threads that will ... more »

If theyre titanium you dont lap them, youll ruin the coating. Correct way would be to cut the seats and resurface the valves and as long as the valve margin is in spec you can run it.

My 450 doesnt have the coupler feature. The power is smooth enough, just dont need the stick in the ass torque

Id go with this as well. I think the older stuff had a blackish coating on them. Dont know what it is tho.

The namura piston is probably the problem. Chinese junk right there.

Looks like more than 3 hours on that piston to me. Where are the rings?

Cant tell you why but if it ran fine last year the carb probably just needs cleaned.

$300 max

Just jump tables at the distance youre comfortable with. Extend it once youre ok with that distance. Once youre 3/4 over the table youre hitting the worst part. So a little more will help. As mentioned above, its mental.

I dont think theres going to be an outdoor season. The first thing to go when this happened was sporting events. Last thing to come back is sporting events.

Its a kx450f. Looking to tone down the torque to somewhere around a 350f rather than a 450 if possible.

Recreational activities are allowed in ohio as long as you follow the social distancing guidelines. Our tracks are open weather permitting.

Ah ok makes sense