yea it is, i find it very good, same one philw has i think, only thing is it can get a little oilly around it as the breather filter is right on top, but i just keep it clean there when i get a chance. its got a little sump plug on underneath so its easy to empty to unlike the others i think
how many milimeters is the cable you use from the engine to battery??
is your cable around 50mm