Specification

Specification

Ground Clearance (77-84): 5.51 inches
Turning Radius (77-80): 17.4 feet (81-84): 14.1 feet
Dry Weight (77-79): 397 lbs (1980): 408 lbs (81-84): 423 lbs
Maximum Climbing Angle (77-84): 35 degrees
Stopping Distance (77-84): 20 metres @50 km/h-- 61 feet @ 31.25 mph
Engine Type (77-84): air cooled 2-stroke
Engine Displacement (77-84): 248cc (15.1 cu. in.) STOCK ENGINE !!!
Compression Ratio (77-84): 6.6:1
Idle Speed (77-84): 1500 rpm
Spark Plug (77-84): NGK BR7ES
Main Brake (77-84): Self-adjusting cable actuated disc
Parking Brake (77-84): Cable actuated shoe and drum
Headlight (77-79): 6V-35W, (1980): 12V-45W, (81-84): 12V-60W
Taillight (77-79): none, (1980): 12V-3W (Canada Model Only), (81-84): 12V-3W
Ignition System (77-80): Points and Condenser, (81-84): Capacitor Ignition System (CDI)

Try some of these simple modifications

1. Remove the front suspension rubber rebound stoppers. You will gain an 
   extra inch of front suspension travel.

2. Grind off  some of the steering stop tabs. The turning radius will be
   greatly improved.

3. Mount the seat on old automotive valve springs. The ride will be a lot
   smoother.

All measurments are to Honda Specifications and in millimetres (mm)

Brakes

Item                              Measurement
Brake lever free play             3.0
Brake lever full travel           70.0
Brake lever remaing effective     above 20.0
Parking Brake                     1-5 notches
Disc runout                       max 0.3
Disc thickness                    3.2
Brake lining thickness (new)      4.25
Brake lining thickness (worn)     min 1.5
Brake drum I.D.                   139.9-140.1

Front Suspension

Item                              Measurment
Shock spring free length          229.4
Front arm pivot pin I.D.          42.58-42.62
Front arm king pin I.D.           14.03-14.06
Front arm pivot pin O.D.          42.47-42.50
Front arm king pin I.D.           13.97-13.98
Toe-in                            8.0

Engine

Item:                             Measurment:
Cylinder I.D.                     70.00-70.01
Piston O.D.                       69.93-69.95
Piston pin hole I.D.              18.002-18.008
Piston pin O.D.                   17.992-18.000
Piston ring side clearance    top 0.045-0.075   
                              2nd 0.025-0.055
Piston Ring Gap               top 0.2-0.4
                              2nd 0.2-0.4
Connecting rod small end I.D.     21.997-22.009
Connecting rod big end axial      0.2-0.4
Connecting rod big end radial     0.010-0.022
Crankshaft runout                 0.04 max

Carburetor

Item                              Measurement
Float Height                      20.0

Electrical

Item                              Measurement
3-point spark gap (77-80)         6/3000 rpm
Point gap (77-80)                 0.3-0.4
Plug Gap                          0.7-0.8

Steering

Item                              Measurement
Throttle lever free play          6.0
Throttle lever full travel        36.0
Steering wheel force to turn      2.5-3.5 kg (5.51-7.72 lbs.)
Steering Shaft O.D.               17.957-18.000
Column bushing I.D.               17.9-18.3
Shaft bushing I.D.                18.06-18.081

Specifications (FL250)

Specifications (FL350)

Engine: Air Cooled, 329.1cc, 2 Stroke, Single Cylinder
Bore and Stroke: 78.5mm x 68mm
Carburetor: 32mm Piston value, Reed Valve
Ignition: Capacitor Discharge, 17.0dg BTDC at 2,000rpm
Sparkplug: NGK BR9ES. 0.7 to 0.8mm
Starter: 12V Electric and Pull Start, Recoil Type
Electrical: 12V-160 W @5,000 rpm
Clutch: Automatic
Transmission: V-Belt Torque Converter with Forward, Neutral and Reverse via Stick Shift in Cockpit
Suspension: 4 Wheel Independent Suspension
Length: 85.0 inches
Width: 58.1 inches
Height: 60.6 inches
Wheelbase: 56.5 inches
Ground Clearance: 8.3 inches
Fuel Capacity: 3.8 Gallons at 20 to 1 (Now 32 to1)
Tires: (F) 21 x 7.0 - 10 (R) 24 x 11 - 10
Rim Bolt Pattern: 10x5 4/110 (F) 10x8 4/130 (R)
Brakes: Front, Dual Hydraulic. Rear, Single Hydraulic
Parking Brake: Cable Actuated Disc
Dry Weight: 602.0 pounds
Head Light: Two 12V head lights with High and Low beam mounted on front cockpit bar. 25 Watts x 2
Tail Light: 12V - 5 Watt
Color: Passion Red, Gull White, Gold and Blue
Speed: Reported up to and over 60 mph.

I have seen a Honda Odyssey with a rear suspension from an old 3-wheeler. It was a quite simple design and worked excellent. Older 3-wheelers are very cheap to buy, considering all you need is the rear end so it doesn't even have to run! The way it works is: The swing arm is mounted underneath a frame cross-member. It has 2 sprockets mounted on the fastened side and 1 sprocket on the end with the wheels. The 2 on the fastened (hinged) side are used to go from the stock axle (which another sprocket has been welded to)and then to go to the actual sprocket that drives the wheels. This allows the up and down movement of the swing arm. That was tricky part, the easy part is attaching the actual shock. It can be mounted anywhere, you may have to make a bracket to hold it but that isn't too hard. Depending on the size of tires on the 3-wheeler, you may have to chop the ends off the stock axle. If you decide to try this I can not be responsible for screwed up Odyssey's. So make sure you know what you are doing before you do it. Good Luck. I have drawn up a little crude drawing, I hope it helps!

DL3SJB's World

Last updated 05/30/04. Best viewed with your eyes wide open. All information provided is of a general nature and is not intended to address the circumstances of any particular individual or entity. Although I endeavor to provide accurate information, there can be no guarantee that such information is accurate as of the date it is received or that it will continue to be accurate in the future. No one should act upon such information without appropriate professional advice after a thorough examination of the facts of the particular situation. You are visitor number