Rg 250 suzuki runs ok for half hour then stops and wont start till cooled down sometimes it will idle but not rev any higher

check for vacuum leaks ,around intakes

Look at the egr sinser Might be going out

It's a carburated bike. You need to have your carburator cleaned. It's not a difficult job, howver if you are not comfortable with what your doing a shop will charge a half hour or 1 hour o clean it for you on average.

Your carborator mixes your fuel and air. when the bike is at idle it is only getting fuel from the "idle" needle. The smallest needle in the carb. These needles are hollow. As fuel sits in the carburator for a long period of time (over 2 weeks) then the fuel can gum up and clog the neeedle. If it runs when the choke is on but dies when you take it off the choke this is what is happening:

On some bikes a "choke" doesn't actually choke it of fuel, sometimes it actually enrichens it. Your bike is probably set up to open another passage way besides the "idle" needle allowing fuel to go into the engine from another passage. you shut the "choke" off and now it only has the idle needle to get fuel from. If that's clogged the bike dies.

A can of carb clean and a screw driver is usually all you need to clean a carb. But if done wrong you will pay more to have a pro fix it.

Up is on,down is off

Ride safe
Bike-Doc
Please mark this as very helpful (if it has been!!)

strip and clean the carb jets first dont poke wire into the jets this will distroy them clean them with carb cleaner and comprested air, check there is fule getting into the carbs and that the floats are free to work
the bike should start and run ok then

valve sticking,, ring stuck

the idle buddy is too low,on the carb is a screw the ide screw turn it in 1/4 of a turn with the bike running untill it idles the way you want it too and it will idle the pic below ill help ya buddy

The fast idle valve is inside the throttle body. Sometimes it backs out and needs turned back in (it's threaded). This will cause the loping idle.

Get transmission filter changed with new fluid. Honda does not recommend transmission flushing.

Hi,
Your plugs are probably dripping with an unburnt gas mixture/residue if you've ridden the bike any serious distance with the choke on.

Change your plugs, don't just clean them, Change Them...

Check your idle jet in your carb. Clean it, carefully.

Good Luck and Let me know...

Obe

I would have it checked out. I know that it has limitors on it but it shouldn't be half throttle. It should rev as soon as you start twisting the trottle.