All 2st Any big boys ridden 85's?

This isn't really husky related but I have been loving my 250.. I had a 2004 KX85 sitting around for a couple years and got around to cleaning the carb and got it fired up. Pro Circuit Pipe/spark arrestor stock jets 140 main and 45 pilot which are supposedly rich from the factory. Most setups i have seen everyone drops to a 138 or less on the main and 40-42 pilot. The bike rips on the top end but is gutless and will bog out of powerband.. Is this just the fact that im 200lbs riding a kids race bike or is there a jetting issue? It has that booowah sound sometimes like when you run out of gas under load but pulls strong on top. I screwed the pilot screw fully in with no real change..

Those little wheeled chainsaws don't have any bottom end, they love being revved. I don't necessarily think it's a jetting issue since you're basically riding 2-up at their normal operating weight. The only mini bike that I've ridden (screwed around on) you had to pretty much wind it and slip the clutch on take-off. But man those little rippers can be fun.

You is fat.......

Bike is lean...

No love.....

Does the powervalve actuator shaft sit correctly, there's a marking on the case that should line up with a dot on the shaft.

I have not confirmed the powervalve operation. Thanks for bringing that to my attention, I will check for that alignment tomorrow.

I've got a dead KX100 in my garage awaiting resurrection (2 actually, but one is a parts bike). I think it will be a fun little ripper if I ever get around to reviving it.

Flywheel weight might be worth looking into for that 85?

The stupid power to weight combined with a high center of gravity with a big guy riding it caused me and 3 other adults to have a near death experience in under 20 min. As we took turns riding a YZ85 one guy was almost dying riding/looping out/high siding it the others were dying laughing.

dork girl 2s KX 65 pulls me just fine faster than i want what with the WAY over loaded suspension and im sure im the biggest man in the cafe any late model mini hauls if its right

Thank you Bart, the power valve was installed incorrect. The downside is you have to pull the jug to get it to sit right again. In 06 they changed it to a nut on top of the shaft vs welded so I will just order one of those. I rode it with the valve forced shut and low and midrange were much better and responsive. Thanks again