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Installing distributor > < Adjustment data, Spark plugs
34 PICT, Keihin carburettor and ignition system
Servicing breaker-triggered ignition system
Distributor data

Engine code

EM 07.81 ▸, FN

EM 08.81 ▸

FN

Version

with Keihin carb.

with Keihin carb.

with PICT carb.

Distributor

Part Nº.

049 905 205 D

055 905 206 A2)

055 905 205 G

Centrifugal advance1)

Start

rpm

1100...1400

1100...1400

1100...1400

rpm

2000

2000

2500

deg.

10...14

10...14

14...19

Ends

rpm

3000

3000

3500

deg.

18...22

18...22

23...27

Vacuum advance

Start

mbar

267...327

220

267...333

mmHg

200...245

160

200...250

Ends

mbar

460

320

467

mmHg

345

240

350

deg.

11...15

4...8

1...15

1)     Speed = engine speed.

2)     Vehicles with manual gearbox have a retardation valve and a vacuum reservoir in the vacuum line between carburettor and vacuum unit.

Engine code

EM 07.81 ▸FN

EM 08.81 ▸

FN

Version

with Keihin carb.

with Keihin carb.

with PICT carb.

Vacuum retard

Start

mbar

186...293

186...293

200...293

mmHg

140...220

140...220

150...220

Ends

mbar

347...400

347...400

400

mmHg

260...300

260...300

300

deg.

7...9

7...9

7...10

Engine code

FB, FH

FH

FP, FT

Version

Man. g/box

Auto. g/box

Man. g/box

Distributor

Part Nº.

055 905 205 A

055 905 205 D

049 905 205 D

Centrifugal advance1)

Start

rpm

950...1250

1000...2000

1100...1400

rpm

2000

2000

2000

deg.

15...20

14...18

10...14

End

rpm

5000

5000

3000

deg.

26...30

26...30

18...22

Vacuum advance

Start

mbar

280...333

267...327

267...327

mmHg

210...250

200...245

200...245

End

mbar

433...446

440...453

460

mmHg

325...335

330...340

345

deg.

11...15

11...15

11...15

1)     Speed = engine speed

Engine code

FB, FH

FH

FP, FT

Version

Man. g/box

Auto. g/box

Man. g/box

Vacuum retard

Start

mbar

---

---

186...293

mmHg

---

---

140...220

End

mbar

---

---

347...400

mmHg

---

---

260...300

deg.

---

---

7...9

1)     Speed = engine speed

Engine code

HN

JB

JB

Version

Man. g/box,
auto. g/box
08.79 ▸

Auto. g/box
▸07.79

Distributor

Part Nº.

027 905 205 E/K2)

055 905 205 K

055 905 205 M

Centrifugal advance1)

Start

rpm

750...1250

1100...1400

1100...1400

rpm

2000

2000

2000

deg.

12...17

10...14

10...14

End

rpm

4400

3000

3000

deg.

33...37

18...22

18...22

Vacuum advance

Start

mbar

140...200

175...225

175...225

mmHg

105...150

130...170

130...170

End

mbar

250

360

360

mmHg

190

270

270

deg.

5...7

11...15

11...15

1)     Speed = engine speed.

2)     With M4 ignition cable connections.

Engine code

HN

JB

JB

Version

Man. g/box,
auto. g/box
08.79 ▸

Auto. g/box
▸07.79

Vacuum retard

Start

mbar

---

---

186...293

mmHg

---

---

140...220

Ends

mbar

---

---

347...400

mmHg

---

---

260...300

deg.

---

---

7...9

 
U28-0001

→ Fig.1     Engine codes EM, FN1), FP, FT, JB2)

1)     With Keihin carburettor.

2)     With double vacuum unit at distributor.

 
V28-0032

→ Fig.2     Engine code FB, FH, FK, HN, JB1)

1)     With single vacuum unit at distributor.

 
U28-0002

→ Fig.3     Engine code FN with PICT carburettor

Installing distributor > < Adjustment data, Spark plugs