mavbike Posted October 3, 2006 Report Share Posted October 3, 2006 On a water cooled two stroke (not sure about 4 poke) blip the throttle every few seconds just a little, that will help it warm up quicker? Why? It circulates the water faster throughout the engine. The coolant in the radiator is cold...only that next to the engine is warm...and, since there is no T-stat...it's constantly circulating, it doesn't stay in the engine long enough to heat up...like it would on your car. Now...blipping the throttle moves it along quicker so it doesn't have as much time to go through the radiator and cool back down. You've all seen a motocross or supercross race with the guys blipping the throttle on the line, right? They're trying to warm their bikes up more completely and faster.... I let mine warm up for 2 or 3 minutes (summer temps) and blip the throttle 1/4 to 1/2 every few seconds....and I take off it's ready to go. I also touch the head to make sure it's nice and warm. Pipes are the first thing to heat up...you'll get a false impression from them. Blipping the throttle helps keep the plugs from loading at idle. Stock motor, and/or cast pistons, are usualy safe. Forged pistons, be carefull until the motor gets good and warm. Forged pistons expand more. Reving the motor will heat the piston, but the cylinder takes longer to heat and expand. If clearances are tight, the piston can expand until it is actualy the same size as the cylinder (cold seize). Often there will be accelerated wear and damage to the piston and cylinder that you may not even be aware of. Your top-end just won't last as long as it could. For a drag motor, I usualy build toward the loose side. For a long term (lot of hours/miles between top ends) I go toward the tight side. But if the motor is tight, always warm it up good before you run it. That doesn't mean you can't blip the throttle while it is warming, just stay in the lower RPM ranges and don't load the motor until it get's warm. Warming the motor first is why I get 2-3 years out of a top end while a friend of mine rarely gets a full year (even though we both clean air filters after almost every ride and we both get close to the same amount of riding time). Quote Link to comment Share on other sites More sharing options...
dajogejr Posted October 3, 2006 Report Share Posted October 3, 2006 That doesn't mean you can't blip the throttle while it is warming, just stay in the lower RPM ranges and don't load the motor until it get's warm. Completely agree.... I'm not trying to say I floor it while blipping, real, real quick blips... And...as said, I make sure the head is warm to touch before going out. And I've done this for all two strokes I've owned. Iron cylinders, nikasil plated, forged and cast pistons.... We got a buddy that just starts it up...and takes off.... He wonders why he already popped a top end, just got the bike beginning of the year. Some people never learn.... Quote Link to comment Share on other sites More sharing options...
Skidmark Posted October 4, 2006 Report Share Posted October 4, 2006 Damn, Guys I knew it was important to warm her up but I dident know exactly for how long and why. Now I know thank you all for the kick ass info :beer: yeah basically all you have to do is let it idle till the heads get hot to the touch then take it easy for a couple minutes and it should run good. :thumbsup: Quote Link to comment Share on other sites More sharing options...
Snake Posted October 4, 2006 Report Share Posted October 4, 2006 Just like any other thing with a motor car, truck, boat, plane dirt bike...ect...ect...you should always let it run for a few min's befor you go off and ride, drive, fly it hard...I let my mustang warm up for 10min befor i even move it every time i take it out... Quote Link to comment Share on other sites More sharing options...
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