Radiator temps

[Honda 250r 001]

How much should a stock radiator bring the temps down as it goes through the radiator? I put an inline gauge on both inlet and outlet and it cools it anywhere from 5-15 degrees. Is this enough? What should it be?

[Honda 250r 001]

Anyone?

[Honda 250r 001]

please?

[mx91a]

Don't know, never measured. Are you overheating? Some tips to run cooler: In the summer run straight water and a corrosion inhibitor (water wetter, amsoil, etc); make sure fins are straight and clean, straigten all bent fins with a tiny screw driver and clean out dirt with wire, you should be able to blow through the radiator and feel air your breath on the other side as well as look through it and see light; check to make sure the inside of the radiator isn't corroded and clogged; check to make sure your water pump is working correctly, pinch the lower radiator hose with your hand and rev the engine, you should feel the pump sucking the water through and collape the hose; get a new and/or higher pressure cap if you are over flowing; don't run louvers in front they restrict flow I recommend just the stock grill to protect from rocks and some good scoops; try not to put a number plate on the front bumper, put it on the hood, if it needs to be on the bumper drill holes in it.