Jetting Specifications

ZR 500, Single Pipe = 440 main jets 0-2000ft run @ 8200 Rpm's

             Twin Pipes = 440-450 main jets run @ 8400 Rpm's

Products available for the ZR 500

Single Pipe = 7 hp

Twin Pipes = 12 hp

V-Force Reeds = 3 hp

711 kit w/ Twin Pipes = 140 hp

Clutch Kit , engages @ 5000 rpm's runs @ 8200 rpm's

Porting = 8 hp

Head Cut = 2 hp

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ZR 600, Single Pipe (Round Carbs) = 440 main jets, Single Pipe (Flat Slide Carb) = 370 main jets

              Twin Pipes (Round Carbs) = 450 main Jets, Twin Pipes (Flat Slide Carb) = 380-400 mains

              Single Pipe run @ 8200 Rpm's, Twin Pipes run @ 8200-8400 Rpm's

Products available for the ZR 600

V-Force Reeds = 2 hp

Porting = 8 hp

Head Cut = 2 hp

Twin Pipes = 12 hp

Single Pipe = 8 hp

Power breather = 4 hp

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ZR 600,ZR800,ZR900,When installing Powerbreather go up two on the main jets.
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ZR 700 '94-'95, Factory Twin Pipes came stock on machine ran @ 8000 Rpm's

                          D&D Twin Pipes =  Run at 8500- 8600 Rpm's            

             '99-'00, Came with factory single pipe ran @ 7800 Rpm's

                          D&D Twin Pipes ran @ 8000 Rpm's, 0-2000 ft run 400 main jets

Products available for the ZR 700

Porting = 10 hp

Head Cut = 2 hp

Twin Pipes = 12 hp

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ZR 800 D&D POWERSINGLE ,+2 TIMING KEY,POWERBREATHER=450 MAIN JET
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ZR 800 D&D TWIN PIPES POWER BREATHER( DO NOT REMOVE CONES)510N MJ
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ZR900,D&D TWIN PIPES =490-500 MAINS,RUN MOTOR @7900-8000
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ZR D&D 1010 twin pipes-F-7 needle,540n,560 n Main jets
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F-7 twin pipes-0-2000 ft 500-510 n main jet
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F-8 D&D twin pipe -30 pilots,f-5 needle 2nd clip,510-520 main jets
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F-9ss D&D twin pipes-stock pilots,490-510 main jets
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2001 Thundercat 1000 ,D&D Trail Pipes-380-400 main jets,run motor @8800 rpms
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'96-'98 ZRT 600, factory stock pipes run @ 8200-8300 Rpm's

                            D&D Triple Pipes run @ 9200-9400 Rpm's

                            D&D Pipe jetting stock carbs = 380-390 mains

                            D&D Pipe jetting bored carbs = 440-450 mains

'99-'02 ZRT 600, D&D Pipe Flat slide carbs jetting = 360 mains

Products available for the ZRT 600

Triple Porting = 10 hp

Triple Pipes = 12 hp

Silencer

Clutch Kit

Gears

V-Force Reeds = 4 hp

Timing Keys

Power Breather = jet up 2 sizes

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'95-'98 ZRT 800, Factory stock pipes run @ 8000- 8200 rpm's

                            D&D Triple Pipes run @ 8400-8600 rpm's

                            '95-'98 jetting specs, 38 round carbs w/ D&D triple pipes = 440-450 mains

                            '95-'98 jetting specs,3 9.5(bored carbs) D&D triple pipes = 490-500 mains,Q5

'99-'01 ZRT 800, Factory stock pipes = 350 mains run @ 8250 rpm's

                            D&D Triple pipes = 380-390 mains run @ 8800 rpm's

Products available for the ZRT 800

Power Breather ( '99-'01) jet up 2 sizes

V-Force Reeds = 4 hp

Timing key ( 93 octane) = 2 hp

Trail Clutch Kit

Triple Pipes, Silencer

Porting = 17 hp

1000 Big Bore kit ( stock cylinders bored) = 204 hp

ZRT 800/D&D 1000 kit-39.5 bored carbs-45 pilots,Q5 needle jet,480-500 main jets
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ALL SPECS TESTED @0-2000 FT ALT  10-30 DEGREES