Yamaha Waverunner 3 Manual
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6-10 E JET PUMPJET THRUST NOZZLE AND NOZZLE RING JET THRUST NOZZLE AND NOZZLE RING EXPLODED DIAGRAM REMOVAL AND INSTALLATION CHART Step Procedure/Part name Q’ty Service points JET THRUST NOZZLE AND NOZZLE RING REMOVALFollow the left “Step” for removal. Jet pump unit Refer to “JET PUMP UNIT”. Reverse gate Refer to “REVERSE GATE”. 1Bolt 2 2 Collar 2 3 Jet thrust nozzle 1 4Bolt 2 5 Washer 2 6 Collar 2 7 Nozzle ring 1 Reverse the removal steps for installation.
6-11 E JET PUMPIMPELLER DUCT AND IMPELLER HOUSING 1 IMPELLER DUCT AND IMPELLER HOUSING 1 EXPLODED DIAGRAM REMOVAL AND INSTALLATION CHART Step Procedure/Part name Q’ty Service points IMPELLER DUCT AND IMPELLER HOUSING 1 REMOVALFollow the left “Step” for removal. Nozzle ring Refer to “JET THRUST NOZZLE AND NOZZLE RING”. 1Bolt 4 2Nozzle 1 NOTE: Clean the contacting surfaces before apply- ing the Yamabond #4 (Yamaha bond num- ber 4). 3Pin 2 4 Impeller duct assembly 1 5 Impeller housing 1 1 6Pin 2
6-12 E JET PUMPIMPELLER DUCT AND IMPELLER HOUSING 1 EXPLODED DIAGRAM Step Procedure/Part name Q’ty Service points 7Bolt 4 8 Water inlet cover 1 9 Packing 1 10 Water inlet strainer 1 11 Packing 1 Reverse the removal steps for installation.
6-13 E JET PUMPIMPELLER DUCT AND DRIVE SHAFT IMPELLER DUCT AND DRIVE SHAFT EXPLODED DIAGRAM REMOVAL AND INSTALLATION CHART *1: EPNOC grease AP #0 Step Procedure/Part name Q’ty Service points IMPELLER DUCT AND DRIVE SHAFT DISASSEMBLYFollow the left “Step” for disassembly. 1 Impeller 1 Left-hand threads 2 Spacer 1 3Bolt 3 4Cap 1 5 O-ring 1 6Nut 1 7 Washer 1
6-14 E JET PUMPIMPELLER DUCT AND DRIVE SHAFT EXPLODED DIAGRAM *1: EPNOC grease AP #0 Step Procedure/Part name Q’ty Service points 8 Drive shaft 1 9 Rear bearing 1 10 Spacer 1 11 Front bearing 1 12 Oil seal 1 13 Oil seal 1 14 Impeller duct 1 Reverse the disassembly steps for assembly. Not reusable Not reusable Not reusable Not reusable
6-15 E JET PUMPIMPELLER DUCT AND DRIVE SHAFT SERVICE POINTS Drive shaft removal 1. Remove: Impeller NOTE: The impeller has left-hand threads. Turn the impeller clockwise to loosen it. 2. Remove: Nut 1 Drive shaft holder: YB-06151/90890-06519 Drive shaft holder: YB-06151/90890-06519 3. Remove: Drive shaft 1 NOTE: Remove the drive shaft with a press. 4. Remove: Rear bearing ÈFor USA and Canada ÉFor worldwide Slide hammer set: YB-06096 Stopper guide plate: 90890-06501 Bearing puller: 90890-06535 Bearing puller claw 1: 90890-06536 Stopper guide stand: 90890-06538 È É
6-16 E JET PUMPIMPELLER DUCT AND DRIVE SHAFT 5. Remove: Front bearing NOTE: Remove the front bearing with a press. Drive rod: YB-06071 Driver rod L3: 90890-06652 Needle bearing attachment: YB-06112/90890-06614 6. Remove: Oil seal NOTE: Remove the oil seals with press. Impeller inspection Refer to “JET PUMP UNIT” in Chapter 3. Drive shaft inspection 1. Inspect: Drive shaft Damage/wear → Replace. Drive rod: YB-06071 Driver rod L3: 90890-06652 Needle bearing attachment: YB-06196/90890-06653
6-17 E JET PUMPIMPELLER DUCT AND DRIVE SHAFT Drive shaft installation 1. Install: Oil seals Driver rod: YB-06071/90890-06606 Ball bearing attachment: YB-06085/90890-06634 Distance a: 14.2 ± 0.2 mm (0.56 ± 0.01 in) Distance b: 4.7 ± 0.2 mm (0.19 ± 0.01 in) 2. Install: Front bearing Drive shaft NOTE: Install the front bearing and drive shaft with a press. 3. Install: Drive shaft (with front bearing) Spacer Impeller duct NOTE: Press the spacer and the front bearing with a pipe that is more than 33 mm (1.30 in) long, and which has an outer diameter less than 50 mm (1.97 in) and an inner diameter more than 26 mm (1.02 in). 4. Add: EPNOC grease AP #0 (between the drive shaft and spacer) Distance a: 23 ± 0.1 mm (0.91 ± 0.004 in) Quantity: Approximately 1/3 of capacity a
6-18 E JET PUMPIMPELLER DUCT AND DRIVE SHAFT 5. Install: Rear bearing NOTE: Press the bearing inner/outer race at the same time holding the drive shaft and impel- ler duct. If a bearing inner/outer race attachment is not available, use a washer or pipe with an outer diameter of 46 mm (1.81 in) and an inner diameter of 20 mm (0.79 in). Bearing inner/outer race attachment: YB-34474 6. Add: EPNOC grease AP #0 (into the cap) Quantity: Approximately 1/3 of capacity 7. Install: Nut Impeller Drive shaft holder: YB-06151/90890-06519
6-19 E JET PUMPTRANSOM PLATE AND HOSES TRANSOM PLATE AND HOSES EXPLODED DIAGRAM REMOVAL AND INSTALLATION CHART Step Procedure/Part name Q’ty Service points TRANSOM PLATE AND HOSES REMOVALFollow the left “Step” for removal. Exhaust system Refer to “EXHAUST SYSTEM” in Chapter 8. Jet pump unit assembly Refer to “JET PUMP UNIT”. 1 Hose clamp 2 2 Cooling water hose 1 Cooling water outlet (exhaust pipe) 3 Bilge hose 1 1 NOTE: Route the bilge hose 1 under the drive shaft tube. 4 Hose clamp 1 5 Cooling water hose 1 Cooling water inlet