Difference between revisions of "Honda MB5"

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(added all the tech specs. bbl to do more, gotta smoke!)
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{{TOCright}}
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==Honda MB5 (or MB50)==
 
The '''Honda MB5''' is a 50cc, 5 speed motorcycle that was only imported into the US in 1982. I It is, in fact, not a [[moped]] at all.  However, it fits into moped culture due to its small displacement 2-stroke engine. Some features found on the MB5 were a speedometer, a tachometer (with a redline of 10,500 rpm), front disc brake, and Honda's Comstar wheels. The MB was the road oriented version of the Honda MT50.
 
The '''Honda MB5''' is a 50cc, 5 speed motorcycle that was only imported into the US in 1982. I It is, in fact, not a [[moped]] at all.  However, it fits into moped culture due to its small displacement 2-stroke engine. Some features found on the MB5 were a speedometer, a tachometer (with a redline of 10,500 rpm), front disc brake, and Honda's Comstar wheels. The MB was the road oriented version of the Honda MT50.
  
 +
==Tech Specs==
 +
<table border="1" height="100" style="margin-left:10px">
 +
<tr>
 +
<td colspan="2" style="width:483px;height:16px"><b><u>Dimensions</u></b></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><small>Overall Length</small></td>
 +
<td style="width:215px;height:16px"><small>74 in  (1880mm)</small></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><small>Overall Width</small></td>
 +
<td style="width:215px;height:16px"><small>27.8 in  (705 mm)</small></td>
  
'''External Links'''
+
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><small>Overall Height</small></td>
 +
<td style="width:215px;height:16px"><small>40.4 in  (1025mm)</small></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><small>Wheelbase</small></td>
 +
<td style="width:215px;height:16px"><small>47.8 in  (1215 mm)</small></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><small>Seat Height</small></td>
 +
<td style="width:215px;height:16px"><small>29.5 in  (750 mm)</small></td>
 +
 
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><small>Foot Peg Height</small></td>
 +
<td style="width:215px;height:16px"><small>12.2 in  (310 mm)</small></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><small>Ground Clearance</small></td>
 +
<td style="width:215px;height:16px"><small>6.3 in  (160 mm)</small></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><small>Dry Weight</small></td>
 +
<td style="width:215px;height:16px"><small>174 lb  (79 kg)</small></td>
 +
 
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><small>Curb Weight</small></td>
 +
<td style="width:215px;height:16px"><small>198 lb  (90 kg)</small></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><br /></td>
 +
<td style="width:215px;height:16px"><br /></td>
 +
</tr>
 +
<tr>
 +
<td colspan="2" style="width:483px;height:20px"><font size="3"><b><u>Frame</u></b></font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><small>Type</small></td>
 +
 
 +
<td style="width:215px;height:16px"><small>Cross line backbone</small></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:32px"><small>Front Suspension, <br />
 +
      travel</small></td>
 +
<td style="width:215px;height:32px"><small>Telescopic fork (dampener
 +
      rod), <br />
 +
      4.9 in (125 mm)</small></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:32px"><small>Rear Suspension,<br />
 +
 
 +
      travel</small></td>
 +
<td style="width:215px;height:32px"><small>Swingarm/twin shock absorber,<br />
 +
      3.5 in  (90mm)</small></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><small>Gross Vehicle Weight Rating</small></td>
 +
<td style="width:215px;height:16px"><small>416.7 lb  (189 kg)</small></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><small>Vehicle Capacity load</small></td>
 +
 
 +
<td style="width:215px;height:16px"><small>220.5 lb  (100 kg)</small></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><small>Tire Size, front &amp; rear</small></td>
 +
<td style="width:215px;height:16px"><small>2.50 x 18</small></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:32px"><small>Tire Pressure, front<br />
 +
      rear</small></td>
 +
 
 +
<td style="width:215px;height:32px"><small>25 psi (175 kPa) front<br />
 +
      32 psi (225 kPa) rear</small></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:32px"><small>Front brake, lining swept area</small></td>
 +
<td style="width:215px;height:32px"><small> Single disc brake, 59.6 sq in<br />
 +
      (384 sq cm)</small></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:32px"><small>Rear brake, lining swept area</small></td>
 +
 
 +
<td style="width:215px;height:32px"><small>Internal expanding shoe, <br />
 +
      13.4 sq in  (86.4 sq cm)</small></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><small>Fuel Capacity</small></td>
 +
<td style="width:215px;height:16px"><small>2.4 US gal  (9.0 liters)</small></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><small>Fuel reserve capacity</small></td>
 +
<td style="width:215px;height:16px"><small>0.5 US gal  (2.0 liters)</small></td>
 +
 
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><small>Caster angle</small></td>
 +
<td style="width:215px;height:16px"><small>25 degrees</small></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><small>Trail</small></td>
 +
<td style="width:215px;height:16px"><small>2.8 in  (70mm)</small></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><small>Front Fork Oil Capacity</small></td>
 +
<td style="width:215px;height:16px"><small>2.54 ozs  (75 cc)</small></td>
 +
 
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><br /></td>
 +
<td style="width:215px;height:16px"><br /></td>
 +
</tr>
 +
<tr>
 +
<td colspan="2" style="width:483px;height:20px"><font size="3"><b><u>Engine</u></b></font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><small>Type</small></td>
 +
<td style="width:215px;height:16px"><small>Air cooled 2-stroke, reed valve</small></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><small>Cylinder arrangement</small></td>
 +
 
 +
<td style="width:215px;height:16px"><small>Single cylinder 40 degree incline</small></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><small>Bore and Stroke</small></td>
 +
<td style="width:215px;height:16px"><small>39.0 x 41.4 mm  (1.54 x 1.63 in)</small></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Displacement</font></td>
 +
<td style="width:215px;height:16px"><font size="2">49cc  (2.98 cu in)</font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Compression ratio</font></td>
 +
 
 +
<td style="width:215px;height:16px"><font size="2">7.6:1</font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Max Horsepower</font></td>
 +
<td style="width:215px;height:16px"><font size="2">7.0 BHP @ 9000 rpm</font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Max Torque</font></td>
 +
<td style="width:215px;height:16px"><font size="2">4.05 ft-lb (5.6 N-m)</font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:32px"><font size="2">Oil Capacity, transmission<br />
 +
 
 +
      Oil tank</font></td>
 +
<td style="width:215px;height:32px"><font size="2">1.1 US qt (1.0 liters)<br />
 +
      1.2 US qt (1.1 liters)</font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Lubrication system</font></td>
 +
<td style="width:215px;height:16px"><font size="2">Forced (eng) and wet sump (tranny)</font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Air Filtration</font></td>
 +
 
 +
<td style="width:215px;height:16px"><font size="2">Oiled polyurethane foam</font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Cylinder compression</font></td>
 +
<td style="width:215px;height:16px"><font size="2">185 psi  (1275 kPa)</font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Engine weight</font></td>
 +
<td style="width:215px;height:16px"><font size="2">38.6 lb  (17.5 kg)</font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Idle Speed</font></td>
 +
 
 +
<td style="width:215px;height:16px"><font size="2">1400 rpm</font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><br /></td>
 +
<td style="width:215px;height:16px"><br /></td>
 +
</tr>
 +
<tr>
 +
<td colspan="2" style="width:483px;height:16px"><b><u>Carburetion</u></b></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Carb Type</font></td>
 +
<td style="width:215px;height:16px"><font size="2">PF 15, 16mm venturi bore</font></td>
 +
</tr>
 +
 
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">ID Number</font></td>
 +
<td style="width:215px;height:16px"><font size="2">PF 15A</font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Air Screw initial setting</font></td>
 +
<td style="width:215px;height:16px"><font size="2">1 3/8 turns out</font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Float level</font></td>
 +
<td style="width:215px;height:16px"><font size="2">13.5 mm  (0.53 in)</font></td>
 +
 
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Main jet, standard</font></td>
 +
<td style="width:215px;height:16px"><font size="2">#105</font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Main air jet, standard</font></td>
 +
<td style="width:215px;height:16px"><font size="2">#210</font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Jet needle &amp; position,
 +
      standard</font></td>
 +
 
 +
<td style="width:215px;height:16px"><font size="2">37B - 2nd groove</font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Slow/Pilot jet, standard</font></td>
 +
<td style="width:215px;height:16px"><font size="2">#38</font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><br /></td>
 +
<td style="width:215px;height:16px"><br /></td>
 +
</tr>
 +
<tr>
 +
<td colspan="2" style="width:483px;height:20px"><font size="3"><b><u>Drive Train</u></b></font></td>
 +
</tr>
 +
 
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Clutch</font></td>
 +
<td style="width:215px;height:16px"><font size="2">Wet, multi-plate</font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Transmission</font></td>
 +
<td style="width:215px;height:16px"><font size="2">5-speed constant-mesh</font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Primary reduction</font></td>
 +
<td style="width:215px;height:16px"><font size="2">4.117</font></td>
 +
 
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Final reduction (sprockets)</font></td>
 +
<td style="width:215px;height:16px"><font size="2">3.307 (43/13)</font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Gear ratios, 1 to 5</font></td>
 +
<td style="width:215px;height:16px"><font size="2">3.083, 1.882, 1.400, 1.130, 0.960</font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Gear shift pattern</font></td>
 +
<td style="width:215px;height:16px"><font size="2">left foot operated, 1-N-2-3-4-5</font></td>
 +
 
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><br /></td>
 +
<td style="width:215px;height:16px"><br /></td>
 +
</tr>
 +
<tr>
 +
<td colspan="2" style="width:483px;height:20px"><font size="3"><b><u>Electrical</u></b></font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Ignition</font></td>
 +
<td style="width:215px;height:16px"><font size="2">CDI (Capacitor Discharge
 +
      Ignition)</font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Ignition timing "F"
 +
      mark</font></td>
 +
 
 +
<td style="width:215px;height:16px"><font size="2">19 +or- 3 degrees BTDC @ 3000 rpm</font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Full retard</font></td>
 +
<td style="width:215px;height:16px"><font size="2">10 +or- 5 degrees BTDC @ 7000 rpm</font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Starting system</font></td>
 +
<td style="width:215px;height:16px"><font size="2">Primary kickstarter</font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Generator</font></td>
 +
 
 +
<td style="width:215px;height:16px"><font size="2">AC generator 66W @ 5000 rpm</font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Battery capacity</font></td>
 +
<td style="width:215px;height:16px"><font size="2">12V - 2.5 AH   
 +
    (YB2.5L-C)</font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:48px"><font size="2">Spark plug, standard<br />
 +
      extended high speed riding<br />
 +
      cold climate, below 5 C or 41 F</font></td>
 +
 
 +
<td style="width:215px;height:48px"><font size="2">NGK BR8HS, ND W24FSR<br />
 +
      NGK BR9HS, ND W27FSR<br />
 +
      NGK BR7HS, ND W22FSR</font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Spark plug gap</font></td>
 +
<td style="width:215px;height:16px"><font size="2">0.6-0.7 mm (0.024-0.028 in)</font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Fuse</font></td>
 +
 
 +
<td style="width:215px;height:16px"><font size="2">7 Amp</font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><br /></td>
 +
<td style="width:215px;height:16px"><br /></td>
 +
</tr>
 +
<tr>
 +
<td colspan="2" style="width:483px;height:20px"><b><u><font size="3">Lights</font></u></b></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Headlight (high/low beam)</font></td>
 +
<td style="width:215px;height:16px"><font size="2">31.5/30 W (sealed beam)</font></td>
 +
</tr>
 +
 
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Tail/Stoplight</font></td>
 +
<td style="width:215px;height:16px"><font size="2">8/27W  3/32 cp  (#1157)</font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Front turn signal</font></td>
 +
<td style="width:215px;height:16px"><font size="2">23W  32 cp  (#1073)</font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Rear turn signal</font></td>
 +
<td style="width:215px;height:16px"><font size="2">23W  32 cp  (#1073)</font></td>
 +
 
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Speedometer light</font></td>
 +
<td style="width:215px;height:16px"><font size="2">3.4W  2 cp  (#158)</font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Tachometer light</font></td>
 +
<td style="width:215px;height:16px"><font size="2">3.4W  2 cp  (#158)</font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Neutral light</font></td>
 +
<td style="width:215px;height:16px"><font size="2">3.4W  2 cp  (#158)</font></td>
 +
 
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">Turn signal indicator</font></td>
 +
<td style="width:215px;height:16px"><font size="2">3.4W  2 cp  (#158)</font></td>
 +
</tr>
 +
<tr>
 +
<td style="width:268px;height:16px"><font size="2">High beam indicator</font></td>
 +
<td style="width:215px;height:16px"><font size="2">1.7W  1 cp  (#53)</font></td>
 +
</tr>
 +
</table>
 +
 
 +
 
 +
==External Links==
 
*http://www.cmsnl.com/honda-mb50z-mb-5-1979-japanese-home-market_model16382/partslist/
 
*http://www.cmsnl.com/honda-mb50z-mb-5-1979-japanese-home-market_model16382/partslist/
 
:This site has really useful exploded diagrams so you know where everything goes.
 
:This site has really useful exploded diagrams so you know where everything goes.

Revision as of 21:54, 18 July 2010

Honda MB5 (or MB50)

The Honda MB5 is a 50cc, 5 speed motorcycle that was only imported into the US in 1982. I It is, in fact, not a moped at all. However, it fits into moped culture due to its small displacement 2-stroke engine. Some features found on the MB5 were a speedometer, a tachometer (with a redline of 10,500 rpm), front disc brake, and Honda's Comstar wheels. The MB was the road oriented version of the Honda MT50.

Tech Specs

Dimensions
Overall Length 74 in (1880mm)
Overall Width 27.8 in (705 mm)
Overall Height 40.4 in (1025mm)
Wheelbase 47.8 in (1215 mm)
Seat Height 29.5 in (750 mm)
Foot Peg Height 12.2 in (310 mm)
Ground Clearance 6.3 in (160 mm)
Dry Weight 174 lb (79 kg)
Curb Weight 198 lb (90 kg)


Frame
Type Cross line backbone
Front Suspension,
travel
Telescopic fork (dampener
     rod), 
4.9 in (125 mm)
Rear Suspension,
travel
Swingarm/twin shock absorber,
3.5 in (90mm)
Gross Vehicle Weight Rating 416.7 lb (189 kg)
Vehicle Capacity load 220.5 lb (100 kg)
Tire Size, front & rear 2.50 x 18
Tire Pressure, front
rear
25 psi (175 kPa) front
32 psi (225 kPa) rear
Front brake, lining swept area Single disc brake, 59.6 sq in
(384 sq cm)
Rear brake, lining swept area Internal expanding shoe,
13.4 sq in (86.4 sq cm)
Fuel Capacity 2.4 US gal (9.0 liters)
Fuel reserve capacity 0.5 US gal (2.0 liters)
Caster angle 25 degrees
Trail 2.8 in (70mm)
Front Fork Oil Capacity 2.54 ozs (75 cc)


Engine
Type Air cooled 2-stroke, reed valve
Cylinder arrangement Single cylinder 40 degree incline
Bore and Stroke 39.0 x 41.4 mm (1.54 x 1.63 in)
Displacement 49cc (2.98 cu in)
Compression ratio 7.6:1
Max Horsepower 7.0 BHP @ 9000 rpm
Max Torque 4.05 ft-lb (5.6 N-m)
Oil Capacity, transmission
Oil tank
1.1 US qt (1.0 liters)
1.2 US qt (1.1 liters)
Lubrication system Forced (eng) and wet sump (tranny)
Air Filtration Oiled polyurethane foam
Cylinder compression 185 psi (1275 kPa)
Engine weight 38.6 lb (17.5 kg)
Idle Speed 1400 rpm


Carburetion
Carb Type PF 15, 16mm venturi bore
ID Number PF 15A
Air Screw initial setting 1 3/8 turns out
Float level 13.5 mm (0.53 in)
Main jet, standard #105
Main air jet, standard #210
Jet needle & position, standard 37B - 2nd groove
Slow/Pilot jet, standard #38


Drive Train
Clutch Wet, multi-plate
Transmission 5-speed constant-mesh
Primary reduction 4.117
Final reduction (sprockets) 3.307 (43/13)
Gear ratios, 1 to 5 3.083, 1.882, 1.400, 1.130, 0.960
Gear shift pattern left foot operated, 1-N-2-3-4-5


Electrical
Ignition CDI (Capacitor Discharge Ignition)
Ignition timing "F" mark 19 +or- 3 degrees BTDC @ 3000 rpm
Full retard 10 +or- 5 degrees BTDC @ 7000 rpm
Starting system Primary kickstarter
Generator AC generator 66W @ 5000 rpm
Battery capacity 12V - 2.5 AH (YB2.5L-C)
Spark plug, standard
     extended high speed riding
cold climate, below 5 C or 41 F
NGK BR8HS, ND W24FSR
     NGK BR9HS, ND W27FSR
NGK BR7HS, ND W22FSR
Spark plug gap 0.6-0.7 mm (0.024-0.028 in)
Fuse 7 Amp


Lights
Headlight (high/low beam) 31.5/30 W (sealed beam)
Tail/Stoplight 8/27W 3/32 cp (#1157)
Front turn signal 23W 32 cp (#1073)
Rear turn signal 23W 32 cp (#1073)
Speedometer light 3.4W 2 cp (#158)
Tachometer light 3.4W 2 cp (#158)
Neutral light 3.4W 2 cp (#158)
Turn signal indicator 3.4W 2 cp (#158)
High beam indicator 1.7W 1 cp (#53)


External Links

This site has really useful exploded diagrams so you know where everything goes.
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