Australasian Dirt Bike — January 2018

http://www.adbmag.com.au JANUARY 2018 | 221

FACTORY RIDE / READERS RIDE / HERITAGE / ACTION / OAS / BUYERS GUIDE

REPACKINGAMUFFLERis a regular job,

especiallyonatwo-strokemachine

becausethepackingthatkeepsthething

quietcangetcloggedwithpre-mixoil.The

standardKTM2Tsilencerisabolt-together

unit,whichmakeslifealittleeasier,butit

requiresaslightlydifferentpacking

method to some 4T machines.

1REMOVEMUFFLER

Firstyouwillneedtoremovethemuffler

fromthebikebyundoingthemounting

bolts and sliding the silencer towards the

rear of the bike.

2BENCHIT

Lay the silencer on your workbench. I like

to use a stainless steel one as it can be

quiteamessyjobandcleaningastainless

benchtop is much easier than scrubbing a

wooden one.

3REMOVEBOLTS

Locatethetwo8mmboltsintheendofthe

silencer.Removeandsetthemaside.

4PULLENDCAP

Nowthatyouhavethetwoboltsremoved

youcanpullandtwisttheendcapuntilit

comes free.

5ALLOYTUBE

Twistandpulltheouteraluminiumtube

untilyoucanremoveitcompletelyandset

it aside for cleaning.

6BINIT

This next step is best done over a bin as it

canbequitemessy.Peelbacktheoiled-up

muffler packing and toss it in the bin.

7WASHUP

Nowit’stimetogiveallthepartsa

thorough cleaning and dry them off ready

for reassembly.

WHEN

THE TIME

COMES

THE GIVEAWAY THAT your muffl er needs

repacking is when your bike starts to

become excessively loud or the exhaust

note gets harsh. When it becomes high

pitched and irritating to the ears or the

muffl er is sounding hollow then it’s time

to repack it. On bikes that are running

rich or with too much oil in the fuel, the

muffl er packing can fi ll up with

two-stroke. This is generally indicated by

the excessively loud, high-pitched noise

that the silencer is making or the

two-stroke oil dripping from the silencer

all over your plastics and swingarm.

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Repacking a

muff ler is a

regular job,

especially on

a two-stroke,

in which the

packing can get

clogged with

pre-mix oil