I I JT 1 AND 2 ENDURO. 58cc. 42 x 42mm.. 1 Trail 7.8cc

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Veronica Watts
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1 JT 1 AND 2 ENDURO Dispacement:... Boe and Stoke:. Numbe o Cyindes: Use:.... Cyinde Head Voume: P/N Cabueto Size:.... P/N gnition Timing:... Spak Pug Heat Range: Specia Pats: Wide Ratio Tansmission 58cc. 42 x 42mm.. 1 Tai 7.8cc Y6P. 1.8mm BTDC. NGK B 7 HS 2-1

2 JT 'i AND 2 ENDURO Pot Diagam Cyinde Pat No A Dimensions in Miimetes: Toeance: ± 0.5mm TOP SURFACE OF CYLNDER

3 JT 1 AND 2 ENDURO Piston Diagam Piston Pat No A Dimensions in Miimetes: Toeance: ± 0mm 48 T 15 J_ ~38~ 2-3

4 ,. JT 1 AND 2 EMDURO Rotay Vave Diagam Rotay Vave Pat No ! 2-4

5 JT 1 AND 2 SPECAL Dispacement:.. Boe and Stoke:. Numbe o Cyindes:. Use:.... Cyinde Head Voume: P /N Specia. Cabueto Size: P /N VM 18 SC Specia. gnition Timing:.... Spak Pug Heat Range: cc 42 x 42mm Motocoss, Shot Tack and TT cc 18mm 2.0mm BTDC. NGK B 9 HN Specia Pats: Rod: Wide Ratio Tansmission. Expansion Chambe: Shit Leve:. Sotted, 2mm wide, 0mm ong P /N P/N

6 JT 1 AND 2 SP-ECAL otay vave cove is modiied to accept a age cabueto, and an ai ceane is to be insta11ed, the ai ceane shoud be o the wet iton type. The ai ceane may be mounted to ight side o engine by means o a ubbe ebow. age cabueto is used, the oi pump must be emoved. oi pump is emoved: Fue-to-oi atio o appoximatey 20: o 24: 1 wi be equied. New thotte cabe wi be equied. 2-6

7 JT 1 AND 2 SPECAL Pot Diagam Cyinde Pat No A Dimensions in Miimetes: Toeance: ± 0.5mm CAUTON When modiying ea booste pot, be caeu not to emove cente bidge A] since this woud damage the piston ing. TOP SURFACE OF CYLNDER i ,, 20 1 A 2-7

8 JT 1 AND 2 SPECAL Piston Diagam Piston Pat No Piston Ring Pat No A Dimensions in Miimetes: Toeances: ± 0mm CAUTON Ate cutting o a potion o the piston skit, be sue to check o cacks aong edge o skit and aound intake pots ate each ace. thee is evidence o cacks o exteme wea, epace piston. NOTE When modiying piston skit, be sue to modiy the intake side ony. This wi change pot timing. 1 t 5 2-8

9 !! J-T- 1 AND 2 SPECAL Rotay Vave Cove. specia type 18mm cabueto is to be used, otay vave cove ] must be modiied. the specia type 18mm cabueto cannot be obtained, do not modiy otay vave cove. otay vave cove is modiied, be sue intake pot 4] on cankcase housing is aso enaged to 18mm D. The thoat opening on the otay vave cove is 16mm D on oute end 3] and 17mm D on inne end 2]. Modiication o otay vave cove consists o enaging thoat opening to 18mm D. Thee ae two methods avaiabe o modiying otay vave cove: Method one does not aow cove to be etuned to stock coniguation. Method One: Measue and cut 14mm om oute end o thoat. Wed o baze 23mm wide and 44mm ong tubua stock to otay Yave cove. Di cente o stock to 18mm D. Method Two: Wed o baze 23mm wide and 30mm ong tubua stock to oute end o thoat. Using baze, i in step aea between otay vave cove and stock. Di cente o stock to 18mm D. 18 D METHOD ONE " ~ ~ ' :i 44.:._ - :, ' ~.,,, 18 D ~, 18 D METHOD TWO '-<30 2-9

10 , {! j JT 1 AND 2 SPECAL Rotay Vave Diagam Rotay Vave Pat No NOTE The otay vave diagam is dawn to actua size and may be used as a tempate when modiying vave. When instaing otay vave: a Be sue that piston is at bottom o stoke. o Be sue that two indent maks 1] on vave ae aigned with shea pin on cankshat. 2-10

11 ,1 JT 1 AND 2 SPECAL Expansion Chambe P /N Mateia Thickness mm A Dimensions in Miimetes: Toeance: ± 1.0mm NOTE Modiy stock expansion chambe as shown in sketch. 650D

an ISO 9001: 2008 Registered Company NOVA WITHOUT AC CONTROL PANEL CONVERSION KIT OFF COLD DASH F L R DEF HOT

an ISO 9001: 2008 Registered Company NOVA WITHOUT AC CONTROL PANEL CONVERSION KIT OFF COLD DASH F L R DEF HOT an ISO 9001: 2008 egistered Company 1969-72 NOVA WITHOUT AC CONTO PANE CONVESION KIT 474171 COD 904270 EV D 4/14/15, 1969-72 NOVA w/o AC CONTO PANE KIT PG 1 O 16 Table of Contents PAGES 1. 2.. 4. 5. 6.