Australasian Dirt Bike – June 2019

Types of

SystemS

SLIP-ONS

A slip-on is usually cheaper but is just

the muffl er. The slip-on uses the

original header pipe and mounts up to

the existing exhaust brackets.

FULL SYSTEM

A full system is the entire exhaust

system right from the header pipe

through to the silencer. This will

include the header, mid pipe and

silencer. A full system is more

expensive but, in most cases, also

produces the most power.

/ KIDZ KORNER / USED RIDE / FACTORY RIDE / READERS RIDE / HERITAGE / ACTION / OAS / BUYERS GUIDE

THE GUYS AT Yamaha were nice enough to

supply us with a complete GYTR exhaust

system for our YZ450F long-termer. The YZ-F

doesn’t really need more power but the GYTR

exhaust system made by FMF looks and

sounds awesome so we decided to throw it on

and show you guys how it’s done.

1 STAND

Sit the bike up on a hoist or pitstand so that

the bike is solid and not rocking around. As

you will be pulling and pushing on the exhaust

system you will need the bike to be sitting

sure-footed.

2 SIDEPLATES

Then, remove the right-hand sideplate that

covers the silencer. This is held in place by

three 10mm bolts, of which one also secures

the seat.

3 CLAMP

Remove the silencer by removing the two,

10mm mounting bolts and then loosening off

the clamp. You will need to twist the silencer

back and forth while also pulling against it for

it to come loose.

4 HEATSHIELD

Remove the heatshield from the header pipe

before loosening the pipe. You will need to

reuse this shield and mountingscrews,so

don’t toss them.

5 MID PIPE

Remove the 10mm mounting boltfromthe

front of the mid pipe. Twist andpullthemid

pipe until it comes loose and thenremoveitby

rotating it around the cylinderandout

towards the clutch side of theengine.

6 HEADER PIPE NUTS

To get easier access to the three10mmheader

pipe nuts, remove the aluminiumengine

mounting brackets from eachsideofthe

motor. This will give you straightaccessinto

the nuts so you can remove themandthen

remove the header pipe.

4

2

3

1

6

5

turn the page>>

TOOLS

T-BARS, SPANNERS,

SPRING PULLERS, SOCKETS,

SCREW DRIVERS

http://www.adbmag.com.au JUNE 2019| 123