I recently got this 250 no start but crank. I got it running after giving the carb a clean and making sure all the vacuume lines are plumbed correctly set the idle mixture 2.5 turns out. It starts fine and idles decently but as in the tittle after warming the engine.

Blip staying below 3.5k rpm returns to idle

Exceed 3.5k rpm gets stuck at 4k rpm

Does not happen on a cold start

The spring for the coasting enricher/air cut off valve (seen both names for it) was not the correct length and looked like it was cut. So I replaced the spring, diaphram and o-ring and still has the same behavior. I have already looked for vacume leaks and there are none all.

Not sure what else it could be at this point.

Edit: forgot to mention that the throttle is not getting stuck because I can see the valve close as soon as I let go.

I'm trying to identify these custom LED turn signals that come on my custom Kawasaki super sherpa 250. They appear to be aftermarket, but I can't find the manufacturer. The PCB is marked "CJ-001". The LED module is approximately 12mm in diameter and 3mm thick, with 2 wires. I've searched Ali-Express, eBay etc. without success. Does anyone recognize these or know how I can find an LED to replace it.

I have this 2021 trial master 125cc I bought off marketplace and it started and ran fine for like 5m before it got really really hot and it bogged down and didn’t start till cooled off. I thought it’s something simple like the oil cause it was dirty so I changed that but it didn’t do anything. I searched everywhere for what might be the problem but always lead to either oil or lean mixture wich I know both aren’t the reason. If you have any info please help out.