Baf­fle re­moval & treat­ment

Classic Motorcycle Mechanics - - BREAKING BAD -

Ide­ally baf­fles are best re­moved from a hot ex­haust that is still mounted to the bike. The resid­ual heat will thin any sticky oil aid­ing baf­fle re­moval and if you need to ap­ply lever­age or force you’ll be twist­ing and pulling against the mass of the bike. Hav­ing the ap­pro­pri­ate tools to hand be­fore you start and straight af­ter a ride gives you the best pos­si­ble phys­i­cal ad­van­tage. Clean the baf­fles ex­actly the same as the ex­haust sys­tem; sol­vent then caus­tic so­lu­tion. They’ll also ben­e­fit from a sound wire-brush­ing as well. Al­ways take a look down the baf­fles from the en­gine end and look for any ob­struc­tions. If in any doubt have a good poke about with a piece of steel rod to prise out any resid­ual car­bon etc. A/ With the re­tain­ing screw/bolt re­moved the baf­fle is with­drawn from of its reg­is­ter us­ing pli­ers on the pull bar. If it’s re­luc­tant to move, ap­ply­ing ro­ta­tional force to the pli­ers nor­mally sorts the job. B/ Some baf­fles don’t have pull bars in which case you’ll need a Plan B. A me­tal rod with large washers bolted to each end can be in­serted into the baf­fle pick­ing up on an in­ter­nal flange. Tap­ping the rear washer should loosen the baf­fle. C/ If you can’t get a washer in­side the baf­fle, make your­self a hooked rod that will grasp on to one of the baf­fle’s in­ter­nal holes. B/ And if all else fails ap­ply heat; here I’m work­ing on a dif­fer­ent ex­haust. Even though the chrome is marked at least the baf­fle is free. In this in­stance it was rust not car­bon/oil that was the is­sue so per­haps lots of pen­e­trat­ing oil might have saved me a rechroming job? Ev­ery day’s a school day etc.!





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