R27
Model Documentation
- R27 Workshop Manual (German language) (published 1962) (13.6 MB)
- R27 Workshop Manual (Multiple language) (published 1966) (57.6 MB)
- (Bulletin #181) Frame - Reinforcement of R27 kickstand supports (English language) (published 1961) (644.0 KB)
- (Bulletin #183) Drive - Drive shafts BMW R25/3 - R26 - R27 (English language) (published 1962) (430.0 KB)
- (Bulletin #191) Engine - BMW R27 remedy for spitting Bing carburetors (English language) (published 1962) (368.6 KB)
- (Bulletin #194) Electrical - Improved centrifugal advance unit for BMW R27 (English language) (published 1962) (30.4 KB)
- (Bulletin #198) Engine - Various innovations on singles and twins (English language) (published 1963) (760.5 KB)
- (Bulletin #202) Engine - New air filter system on model R27 (English language) (published 1963) (190.9 KB)
- (Bulletin #203) Engine - Piston fitting clearance model R27 (English language) (published 1963) (326.4 KB)
- (Bulletin #204) Drive - New solo gear ratio in rear wheel drive (English language) (published 1963) (191.6 KB)
- R27 piston bulletin (English language) (published 1963) (326.4 KB)
- (Bulletin #207) Engine - Oil pump with higher capacity (English language) (published 1964) (159.2 KB)
- (Bulletin #212) Suspension - Lubrication of the front wheel-swinging arm bearing (English language) (published 1964) (236.3 KB)
- (Bulletin #221) Frame - Fastening of saddle spring R27 (English language) (published 1965) (201.5 KB)
- (Bulletin #226) Frame - Bolts for fastening of saddle spring R27 (English language) (published 1966) (120.0 KB)
- (Bulletin #229) Engine - New acceleration pump (English language) (published 1966) (121.2 KB)
- (Bulletin #230) Engine - Colour marks on piston pin and boss (English language) (published 1966) (57.8 KB)
- (Bulletin #231) Engine - Pistons R27 (English language) (published 1966) (90.3 KB)
- (Bulletin #231) Engine - Pistons R27 (English language) (published 1966) (101.1 KB)
- (Bulletin #232) Drive - Hardy disc for driveshaft universal (English language) (published 1966) (79.6 KB)
- (Bulletin #251) Engine - Colour marks of pistons (English language) (published 1967) (381.8 KB)
Model Specifications | |
|---|---|
| Drivetrain | |
| Displacement | 247cc |
| Cylinders | 1 |
| Bore x Stroke (mm) | 68 x 68 |
| HP @ RPM | 18 @ 7400 |
| Compression Ratio | 8.2:1 |
| Valves | OHV, 2 per cylinder |
| Clutch | Dry, single plate, cable operated |
| Transmission | 4 speed, foot shifted |
| Final Drive | Driveshaft |
| Running Gear | |
| Frame | Tubular steel double cradle |
| Front Suspension | Earles type swingarm fork |
| Rear Suspension | Twin shock swingarm |
| Front Brakes | 160mm drum, single leading shoe |
| Rear Brakes | 160mm drum, single leading shoe |
| Electrical | |
| Ignition | Battery/coil |
| Spark Plugs | Bosch W240T1 |
| Generator | Noris LJ/CJE/6/1800/R5 6V 45W |
| Capacities & Measurements | |
| Weight | 162kg |
| Fuel | 15l |
| Wheelbase | 1390mm |
| Top Speed | 130kph |
| Number Produced | 15364 |
The information provided here was obtained from a variety
of public sources and may not reflect official BMW archival data.
Please contact the BMW Archives for official data
regarding models.