Operator's Manual

Figure38

1.Choppertip

2.Usingahacksaw,cutaslotintheshearedendofthe

boltandintothechoppertip(Figure38).Makesure

theslotisdeepenoughtoengageastraightbladed

screwdriver.

3.Aftercompletingtheslot,heattheshearedboltwitha

torchtosoftentheLoctite(Figure38).

4.OncetheLoctiteissoftened,threadtheshearedbolt

outofchoppertip(Figure38).

5.Wheninstallingusedornewchoppertips,alwaysuse

newboltswithapatchlockfeatureortreatthebolt

threadswithLoctite.

HighAltitudeOperation

Whenoperatinginhighaltitudesthecarburetorjetsmayhave

tobechangedtoobtainoptimumengineperformance.Use

thechartbelowtodeterminewhichcarburetorjetisrequired

fortheoperatingaltitude.Orderthecarburetorjetsfromyour

BriggsandStrattonDealer.

CarburetorJetSize

Altitude

LeftCarburetorJetRightCarburetorJet

Standard274m

(900feet)

150156

1524m(5000feet)

146152

1981m(6500feet)

144150

2743m(9000feet)

140146