geoffroy

i've got a prodesing cool head. thats what i thought, the coolant is split up evenly... thanks, jeff

i wanted to know, does the water pump...pump the prestone equality into both heads or does it flow through the right head and then the left? is there any way to see if the pump is working properly? Jeff

send me pics please [email protected] jeff

hello please send me pics [email protected] jeff

i'm sure everybody understands anyway! jeff

thanks greg! i'll go and buy those tomorrow and i'll check my exhausts temp more closely. i think it might be because my engine is freshly rebuilt, maybe the piston on the left side is a tad bit tighter than the left one.... jeff

with the equipment that i have would a 300 main jet be a good starting point?

ok, i'll try other jets but what i dont understand is that they exhausts are not at the same temp... what size should i start off at? i will try inverting the two carbs and the reeds to see if the problem is really in the carb. jeff

i have done no mod with the airbox...exept for the snorkle that i have taken off. also forgot to mention that the elevation here is 200 feet. if it was an air leak, wouldn't it tend to rev higher? i thought it might have been because of the choke, but i took the choke of a freinds banshee and it still does the same thing i see you guys out there running with 300 + main jets with about the same equipment as i have. what i dont understand is that i went to yamaha and they told me 250-260 for the mains and stock pilot. jeff

Hello everyone i'm new to the forum and i'm from quebec canada. i bought a banshee that had a blown motor(it gripped on the generator side)the cylinders where fine they had already been peirced once before. 64.25 mm. I ordered 2 wsm pistons and top gasket kit and i started putting everything back together. i put a new rebuilt crank and crank seals. and torqued everything it has a cool head made by pro design with #2 domes i beleive. I took the compression once finished and it gave me 135 psi on both cylinders. reed vavles look good ( it has vforces) and the rubber couppling is nice aswell. I noticed that the carb on the side that it gripped the air screw was almost completely unscrewed. I put everthing back to stock specifications. 1.5 turns out on the air screws (its between -10 and -30 degrees celcius up here in quebec). I put the needles on the 4th notch. I have 260 main jets and 27.5 pilot jets. i got the bike started. its starts great, i ajust the idle at about 1000 rpm. I go for a ride and the bike is running strong and seems not to pink or anything. i bring it back in the garage and i take the exhaust temperature with my laser gun. the left side exhaust is alot hotter than the right side exhaust (about 3 inches away from the cylinder)...the left exhaust was at nearly 200 and the right one was at about 100 degrees celcius. I then completely took the carbs apart and cleaned everything. i put everything back up and even on idle, the left side carb is about 20-25 celcius hotter than the right side. did this ever happen to you guys? what could be the problem? as for engine mods i've got a k&n air filter, fmf pipes and silencers, vforce reeds and the cool head. if you guys think that it is the vforces...it is possible to interchange the two reeds to see if the problem switches side? the plugs are new and i tried swithing the plug wiring...still no effect jeff