What is the bolt size to anchor the front seat of a 2004 yamaha xvs1100? Mine is missing.

no you need a driver side seat

I don't know if this is something you want to get into? You decide. Front Seat Belt Replacement SRS components are located in this area. Review the SRS component locations and the precautions and procedures before performing repairs or service.
NOTE: Check the front seat belts for damage, and replace them if necessary.

Front Seat Belt

1. Make sure you have the anti-theft code for the radio, and then write down the frequencies for the preset buttons.
2. Disconnect the negative cable from the battery, and wait at least 3 minutes before beginning work.
3. Slide the front seat forward fully.

1. Pull the lower anchor cover (A) back, and remove the lower anchor bolt (B).
2. Remove the B-pillar lower trim panel.

1. Remove the upper anchor cover (A), and remove the upper anchor bolt (B).

1. Disconnect the seat belt tensioner connector (A), and detach the harness clip (B) from the retractor (C). Remove the upper retractor mounting bolt (D), and the lower retractor bolt (E), then remove the front seat belt (F) and retractor.
2. If necessary, remove the front seat belt protector (G).
3. Remove the B-pillar upper trim.

1. Remove the shoulder anchor adjuster (A).

1. Install the seat belt in the reverse order of removal, and note these items:
   • Assemble the washers, collar, and bushing on the upper and lower anchor bolts as shown.
   • Check that the retractor locking mechanism functions.
   • Apply liquid thread lock to the anchor bolts before reinstallation.
   • If the seat belt tensioner has been activated, replace the front seat belt protector with a new one.
   • Before installing the anchor bolts, make sure there are no twists or kinks in the seat belt.
   • Make sure the seat belt tensioner connector is plugged in properly.
   • Reconnect the negative cable to the battery.
   • Enter the anti-theft code for the radio, and then enter the customer's radio station presets.
   • Reset the clock.
   • Do the PCM idle learn procedure and the power window control unit reset procedure.

Upper anchor bolt installation
Lower anchor bolt installation

Seat Belt Buckle

1. Make sure you have the anti-theft code for the radio, and then write down the frequencies for the preset buttons.
2. Disconnect the negative cable from the battery, and wait at least 3 minutes before beginning work.
3. Remove the front seat.
4. If equipped, remove the center table.
5. Remove the under seat storage box.
6. Remove the center cover, driver's, passenger's.

1. Driver's: If equipped with seat heater, remove the harness band (A), and disconnect the seat subharness connector (B). If equipped without seat heater, detach the seat belt switch connector clip (C). Detach the seat belt buckle tensioner clip (D), and harness clip (E).

1. Make sure you have the anti-theft codes for the radio and the navigation system, then write
down the frequencies for the preset buttons.
2. Tilt the steering wheel all the way up and telescope it all the way in.
3. '04-07 models passenger's seat: Carefully insert the tip of a small screwdriver (A) through
the hole in the back of the front seat belt lower anchor cover (B) and into the hole in the
front seat belt lower anchor (C). Unlock the lower anchor by pushing in on the screwdriver.
Remove the screwdriver, and then detach the front seat belt anchor plate (D) and anchor
cover from the lower anchor.4. Slide the seat all the way forward, then remove the seat track end covers from the back of both seat tracks.5. Slide the seat about half way to the rear so you can access the seat mounting bolts. If equipped with the driver's 8-way power seat, fully raise the seat.
6. If equipped with a side airbag, disconnect the negative cable from the battery, and wait at
least 3 minutes before removing the seat. 7. Remove the bolts securing the front seat. 8. Lift up the front seat, then detach the harness clip and disconnect the connector.
If equipped, the seat heater connector on the 2-way power seat and passenger's
manual seat. '04-07 models, disconnect the seat position sensor subharness connector on the
driver's manual height adjustable seat and the driver's 8-way power seat.
9. With the help of an assistant, carefully remove the front seat through the front door opening. 10. Install the seat in the reverse order of removal, and note these items:
Apply medium strength type liquid thread lock to the front seat mounting bolts
before reinstallation.
Make sure each connector is plugged in properly.
Tighten the seat mounting bolts to the specified torque in the sequence shown.
Slide the seat all the way back and tighten then slide it forward and
tighten Before attaching the lower anchor bolts, make sure there are no twists or kinks in
the seat belts. 04-07 models passenger's seat: The triangle marks on the anchor plate and
the lower anchor must face the same side. Insert the anchor plate into the lower
anchor, and make sure that it is locked securely. If equipped with a side airbag, reconnect the negative cable to the battery. Enter the anti-theft codes for the radio and navigation system, then enter the radio station presets. Reset the clock. Your all done. Drink a cold beverage and enjoy the rest of your weekend! hope this helps. Dave

The bolt that holds the seat stay to the fender is an 8mm flange bolt, Yamaha P/N 95027-06012-00. There are also two nuts that hold the back of the pillion to the stay, Yamaha P/N 95707-06500-00. The front seat has no bolts in the back, the two button head bolts in the front that hold it in place are Yamaha P/N 92014-08020-00.

I think it is 8mm

please don't forget to rate, thx.

Retractor and Tongue—Sedan
SPECIAL SERVICE TOOL(S) REQUIRED Description Tool Number Safety Belt Bolt Bit T77L-2100A
NOTE: Safety Belt Bolt Bit T77L-2100-A should be used for safety belt removal and installation.

Removal

1. Remove rear seat cushion. Refer to Section 01-10 .
   

Seat Cushion, Rear Sedan
Removal

1. Apply knee pressure to lower front portion of the rear seat cushion. Push rearward to disengage rear seat cushion pad and frame (600A88) from rear seat cushion front retainers (63370).
   

1. Remove rear seat cushion from vehicle.
   

1. Remove rear seat back. Refer to Section 01-10 .
   

Seat Back, Rear 60/40 Split Bench—Sedan
Removal

1. NOTE: Safety belt bolts do not secure seat back to vehicle.
   
   Remove rear seat cushion as described.
   

1. Fold down back seat and remove two bolts in the center of each seat back striker plates.
   

1. Remove two bolts from outboard rear seat back frame retaining brackets.
   

1. Lift seat back up and pull forward to remove from vehicle.
   

1. Remove panel (52018) and quarter trim panel (31012). Refer to Section 01-05 .
   

Trim Panel, Quarter—Sedan Removal

1. Remove rear seat. Refer to Section 01-10 .
   

1. Pull up on rear section of rear door scuff plate that overlaps lower quarter trim panel.
   

1. Pull lower quarter trim panel away from body.
   

1. Remove safety belt retaining bolt.
   

1. Feed safety belt through lower quarter trim panel.
   

1. Remove safety belt anchor plate-to-sill bolt from quarter panel.
   

1. Remove retractor anchor nut and retractor from rear quarter panel.
   

1. Remove upper seat belt anchor bolt and anchor from upper rear quarter panel.
   

1. Slide anchor plate end of safety belt through the openings in the quarter trim panel.
   

1. Remove outboard front safety belt retractor and tongue (611B08) from the vehicle.
   
   
   
   
   
   Item Part Number Description 1 386277-S190 Bolt (Part of 611B68) 2 31012 Upper Rear Quarter Trim Panel 3 611B60 Retractor and Tongue 4 N800937-S190 Nut 5 389370-S190 Bolt 6 — Rear Quarter Panel (Part of Body) 7 52018 Lower Rear Quarter Trim Panel 8 — Mounting Stud (Part of Body)

1. Remove seat belt anchor bolt and retractor and tongue from rear deck panel.
   
   
   
   
   

Installation

1. To install, reverse Removal procedure.
   

1. Make sure the safety belt webbing is not twisted. If it is, remove the twist.
   

1. Tighten retractor anchor bolt and safety belt anchor plate-to-sill bolt to 34-46 Nm (25-33 lb-ft).
   

1. Check the restraint system for proper operation.
   

1. Remove front seat.
2. Remove adjuster cover. A
3. Slide floor anchor cover.
4. Remove floor anchor bolt. B
5. Remove shoulder anchor bolt. C
6. Remove front and rear kicking plate, then remove center pillar upper and lower garnish.
7. Disconnect seat belt pre-tensioner connector.
8. Remove the screw securing seat belt pre-tensioner retractor, then remove seat belt and seat belt pre-tensioner retractor.
9. Remove bolts securing seat belt adjuster, then remove seat belt adjuster. Reverse procedure to install.J