gregbowler Posted October 6, 2010 Report Share Posted October 6, 2010 Just trying to tune my new motor and have a lean pop and more smoke or steam out of the right (clutch) side. Motor will hold 6 psi overnight. Carbs are in sync, have tool. So what do you think ? Are these domes leaking coolant ? mods are as follows : 4mil stock cylinder HJR dune port 795 pro lite pistons 65mm bore Noss Head with custompump gas stroker domes DMC916 pipes stock carbs carbon tech reeds stock cages jetted 27.5 pilot 1 turn out 330 main middle clip on the needle http://i1182.photobucket.com/albums/x446/gregbowler/P1000404.jpg http://i1182.photobucket.com/albums/x446/gregbowler/P1000402.jpg http://i1182.photobucket.com/albums/x446/gregbowler/P1000403.jpg http://i1182.photobucket.com/albums/x446/gregbowler/P1000401.jpg Quote Link to comment Share on other sites More sharing options...
bansheesrtoys Posted October 7, 2010 Report Share Posted October 7, 2010 if you think the dome is leaking coolant then get a coolant pressure tester, with a honda adapter, the honda adapter is the same as the banshee's raditor cap hole. put about 13psi and see if it holds if not then look for the leak. pull off your reeds and look in the cyclinder for coolant. Quote Link to comment Share on other sites More sharing options...
Nutwood 472 Posted October 7, 2010 Report Share Posted October 7, 2010 Just trying to tune my new motor and have a lean pop and more smoke or steam out of the right (clutch) side. Motor will hold 6 psi overnight. Carbs are in sync, have tool. So what do you think ? Are these domes leaking coolant ? mods are as follows : 4mil stock cylinder HJR dune port 795 pro lite pistons 65mm bore Noss Head with custompump gas stroker domes DMC916 pipes stock carbs carbon tech reeds stock cages jetted 27.5 pilot 1 turn out 330 main middle clip on the needle http://i1182.photobu...er/P1000404.jpg http://i1182.photobu...er/P1000402.jpg http://i1182.photobu...er/P1000403.jpg http://i1182.photobu...er/P1000401.jpg I would take exhaust off and check,dont take the reeds off and risk an airleak and another set of reed gaskets'and since its passing a leak down test,just some advice Quote Link to comment Share on other sites More sharing options...
AKheathen Posted October 7, 2010 Report Share Posted October 7, 2010 fill the radiator to the very top and re-do the leak-down. after about 10 min, pull the cap. if coolant comes out, then you have a leak there. if you don't have a leak at the dome, then i'd look at the carbs and fuel. old premix could have separated in the bottom of the tank, and one carb could get mostly oil, making it lean, or could be plugged jet, etc.... Quote Link to comment Share on other sites More sharing options...
bansheesrtoys Posted October 7, 2010 Report Share Posted October 7, 2010 yeah your right , it would be easier your way.but the cooling system holds up to 15lbs if you put 15lbs of pressure in the crank case you could blow a seal couldn't you? so i would remove the pipes but use a cooling pressure tester, or take off the cap and kick it over a few times and see if any bubbles come up. plus if you use a coolant pressure tester with the pipes off you can tell which cyclinder is the problem. Quote Link to comment Share on other sites More sharing options...
bansheesrtoys Posted October 8, 2010 Report Share Posted October 8, 2010 actually the easiest way to tell if your domes are leaking is just start it up and remove you raditor cap if coolant starts pouring out them its a leaking dome. Quote Link to comment Share on other sites More sharing options...
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