1978 Polaris RXL Service Manual, Page 74Get this manual
G LOSSARY {Co n' t]
Pr imary Circu it:
This ci rcuit is res ponsible for th voltage build-up in th primary wi ndi ngs the co ilIn th CO system the pa rts include the excite co il, th tri gger co il, th wires from stator la te to COl box and to the low resistance rimary win dings in the ignition coilDrive clutch on enginePress ure bu ilt up in he crankcase of two stroke engine Pounds per square nch
Primary ClutchPrima ry Co pressio n: psi
Remove and replaceRevo lut ions pe in uteIn the mechanica sense, frict io or loadIn he elec rica sense, oh msBoth resu lt in energy convers ion heatAlways referred to based on no rmal opera ing posit ion of he driverIgnition ti ming wh en fully advanced or at spec ified RPMThis circuit consists of he large seco ndary coil wind ings, igh tension wire and to ground through the spa rk plug ai gap Driven clu tch chaincase jackshaftGa lling of th sides of pistonUsuall there is ransfer of aluminu from the iston to the cylinder wallCa uses: 1) imp roper lu br ica tio n; 2) excessive temperatu res; 3) nsuffl cle nt piston clearance;stuck piston rin gsTh late mounted unde he flywheel supporting he primary ignition co mponents and lighting coi lThe fill tank in the liquid cooling system