Difference between revisions of "Derbi Variant Piston Port Specifications"
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==Engine== | ==Engine== | ||
| − | + | '''Specifications''' | |
*Stroke: 43mm | *Stroke: 43mm | ||
*Bore: 38mm | *Bore: 38mm | ||
| Line 18: | Line 18: | ||
*15x30x7mm | *15x30x7mm | ||
*25x40x7mm | *25x40x7mm | ||
| + | |||
| + | ==Carburetor== | ||
| + | '''Stock Type''' | ||
| + | *Dellorto 12/12 | ||
| + | '''Jet Size''' | ||
| + | *? (probably somewhere in the 50s) | ||
==Ignition== | ==Ignition== | ||
| − | |||
'''Timing Advance''' | '''Timing Advance''' | ||
*1.8mm Before TDC (21 Degrees) | *1.8mm Before TDC (21 Degrees) | ||
'''Point Gap''' | '''Point Gap''' | ||
*0.35mm to 0.4mm | *0.35mm to 0.4mm | ||
| − | + | '''Spark Plug''' | |
*NGK B7HS | *NGK B7HS | ||
*Champion L82 | *Champion L82 | ||
Revision as of 22:28, 6 June 2017
Engine
Specifications
- Stroke: 43mm
- Bore: 38mm
- Displacement: 48.7cc
- Compression 8.5:1
- Rotation: CCW Facing Magneto
Main Bearings
- 17x40x12mm - 6203
- 17x47x14mm - 6303
Main Seals
- 17x28x6mm - Qty2
Case Bearings
- 25x52x15mm - 6205
- 15x42x13mm - 6302 (Watch out for cheap 6302 bearings, some come 16x42x13mm)
Case Seals
- 16x24x4mm - Qty2
- 15x30x7mm
- 25x40x7mm
Carburetor
Stock Type
- Dellorto 12/12
Jet Size
- ? (probably somewhere in the 50s)
Ignition
Timing Advance
- 1.8mm Before TDC (21 Degrees)
Point Gap
- 0.35mm to 0.4mm
Spark Plug
- NGK B7HS
- Champion L82
Drivetrain
Chain
- 415 Size
- ? Links
Standard Front Sprocket
- ? T
Standard Rear Sprocket
- 30T
Variant Frame
Headset Bearings
- 3/16" loose ball bearings - Qty46
- Bearing Services part #STL-3/16GR25
Spoked Wheel Bearings
- 12x32x10mm - 6201-2RS - Qty4
Spoked Wheel Brake Pads
- 105x20mm - Qty2
- Tomos pads could fit with modification
