Currently, only a few bulletins are posted. There are so many other aspects of this site that need to be worked on; there is no reason to spend the time and effort to publish bulletins nobody will ever read.
If you need a bulletin, please use the “Contact” link above, and I will gladly post it. Be sure to include the Bulletin Number!
| FUEL SYSTEM AND LUBRICATION | ||
| Bulletin # | Subject | Date |
| 1232 | Improving idle characteristics on 1970 - 3 cyl. | 1/70 |
| 1242 | Adjusting slow speed needles on 1970 - 3 cyl. & V-4 | 8/70 |
| 1255 | Orifice plugs and inlet needles for 1963 thru 1971 models | 2/71 |
| 1260 | Minimum recommended fuel pump pressures | 4/71 |
| 1265 | Causes of poor idle on 1971 - 50 | 7/71 |
| 1283 | Improve high speed - Orifice change on 1972 - 65 | 2/72 |
| 1298 | Replace air silencer screws when base removed on 50 thru 125 | 6/72 |
| 1311 | Orifice plugs & float valve & seat for 1972 & 73 - 6 thru 135 | 12/72 |
| 1322 | Poor idle or hard starting characteristics on 1973 - V-4's | 7/73 |
| 1328 | Low speed knob grommet restricting air flow on 1974 - 9.9 & 15 | 10/73 |
| 1330 | Change in carburetor choke valves on 1974 - 2, 9.9 & 15 | 11/73 |
| 1331 Rev. 1 | New idle adjustment stop on 1974 - 9.9 & 15 | 1/74 |
| 1336 | Spark plug fouling on 1974 - 9.9 & 15 | 2/74 |
| 1342 | Piston failures on 1973 & 74 - 135 | 5/74 |
| 1354 | Testing fuel pump pressure on 1974 to date - 4 thru 25 | 9/74 |
| 1385 Rev. 1 | Recommended fuel for all to date - 2 thru V-6 | 9/75 |
| 1388 | New idle speed control knob on 1974 & 75 - 9.9 & 15 | 8/75 |
| 1392 | Permanently installed fuel tanks on 1976 to date - V-6's | 10/75 |
| 1399 | Change in carburetor orifice for 1976 - 55 & 75 | 12/75 |
| 1412 | Change in choke linkage on 1976 - V-4's | 4/76 |
| 1415 | Throttle cam adjustment tool on all models to date | 4/76 |
| 1422 | Hard starting in cold weather on 1976 - V-6's | 6/76 |
| 1427 | Permanently installed fuel systems on dual V-4, single or dual V-6 | 8/76 |
| 1429 | Mid range improvement on 1976 - 70 & 75 | 9/76 |
| 1438 | HP restrictor kit on 1969 thru 1978 - 25 reduced to 20 | 6/77 |
| 1441 | Lower to upper fuel pump hose on 1977 - V-6's | 7/77 |
| 1453 | Carburetor jet sizes on all recent models | 1/78 |
| 1462 | Carburetor improvements on 1978 - V-6's | 4/78 |
| 1464 | 100:1 two cycle lubricants not approved for any models to date | 5/78 |
| 1465 | Lean won't idle - Missing idle air bleeds on 1978 - 140 | 5/78 |
| 1475 | Loosening choke clevis due to wear on 1978 - V-4's | 7/78 |
| 1479 | Surging loss of power - Orifice change on 1978 - 150 | 8/78 |
| 1487 | Loose choke butterfly screws on 1972 thru 1978 - 50 | 12/78 |
| 1491 | Lean idle - Orifice change on 1979 - 175 | 2/79 |
| 1492 | Engine not turning up - air bleed change on 1979 - 150 | 2/79 |
| 1493 | Look alike float chamber gaskets on 1978 to date, V-4's & V-6's | 4/79 |
| 1501 | Recommended anti-siphon valves and fuel filter for all V-6's | 6/79 |
| 1503 | Eliminating insects from float bowl, add vent screen on 20 thru V-6 to date | 8/79 |
| 1509 Rev. 1 | Use of gasahol 1978 to date on all models | 11/79 |
| 1514 | Carburetor jet change 1979 - 55 | 1/80 |
| 1515 | Hand starting cold engines on 1979 - 25 & 35 | 3/80 |
| 1516 Rev. 1 | Carburetor Jet Change | 3/80 |
| 1523 | Revised fuel octane recommendation on 1976 to date - V-6's | 3/80 |
| 1524 | Fuel line vacuum tester on V-4's & V-6's to date | 3/80 |
| 1528 | Eliminating stalling after prolonged idle on 1980 - 50 and 1979 & 80 - 3 cyl. | 4/80 |
| 1529 | Fuel economy improvement on 1980 - 235 | 4/80 |
| 1532 | List of available high, intermediate and low speed orifices - all fixed jet models | 5/80 |
| ELECTRICAL AND IGNITION SYSTEMS | ||
| Bulletin # | Subject | Date |
| 1229 | Testing clipper circuit on 1970 3 cyl. & V-4's | 2/70 |
| 1237 | New screw for anti-reverse contact & insulator on 1969-70 3 cyl. & V-4's | 4/70 |
| 1239 | Cleaning distributor caps on 1968 thru 1972-55 thru V-4 | 4/70 |
| 1249 | Stator leads damaged by flywheel on 1970-50 | 12/70 |
| 1256 | Short spark plug life due to charge coil or connector leakage on 1971-50 | 3/71 |
| 1261 | Purpose of reverse cut-off spring. Do not remove from 55 thru V-4 | 5/71 |
| 1265 | Causes of poor idle on 1971-50 | 7/71 |
| 1277 | New throttle cam prevents starting in gear on 1972-40 | 10/71 |
| 1279 | Servicing OMC CD system and new spark plug boots | 1/72 |
| 1282 | Erratic idle - Relieve back pressure - Adjust carburetor on 1972 - 20 & 25 | 1/72 |
| 1284 | Supplement to 1282 | 2/72 |
| 1287 | Causes of damage to instrument cable on 1971 & 72 - 50, 65 & V-4 | 3/72 |
| 1291 | Intermittent firing due to poor ground connection on 1967 thru 1972 - 100 & 125 | 3/72 |
| 1310 | New wiring clamp on timer base and sensor for 1973 - 50 | 10/72 |
| 1312 Rev. 1 | Proper use of jumper cables and battery charging units - all models | 3/73 |
| 1320 | Electrical trouble shooting - Remote control on 1973 - 50 thru 135 | 6/73 |
| 1322 | Poor idle or hard starting characteristics on 1973 - V-4 | 7/73 |
| 1326 | Ignition key blanks on 1973 to date - All electric start models | 10/73 |
| 1327 | Sensors grounding to sensor shield on 1973 - 50 thru 135 | 10/73 |
| 1335 | Eliminate warm up choke on 1968 thru 1974 - 50 thru V-4's | 2/74 |
| 1336 | Spark plug fouling on 1974 - 9.9 & 15 | 2/74 |
| 1341 | Ignition shut-off switches on 2 thru 135 to date | 4/74 |
| 1345 | Rerouting of ignition coil ground lead on 1974 - 2, 4 & 6 | 5/74 |
| 1359 | Cam-point timing on 1974 & 1975 - 9.9, 15 & 40 | 10/74 |
| 1361 | Electric trolling motor transistor failure on 1974 to date | 10/74 |
| 1370 | Stator service tip on 1973 thru 1975 - V-4's | 1/75 |
| 1375 | Pulse pack service tips on 1967 thru 1970 - 100 & 115 | 2/75 |
| 1380 | Stator resistance reachings on 1974 to date - 50 thru V-4 | 3/75 |
| 1381 | Rev. 1 Battery cable extension & splicing on all electic models to date | 10/75 |
| 1382 | Water in power packs on 1973 thru 1975 - 50 thru 135 | 5/75 |
| 1383 | New driver coil for 1974 thru 1976 - 9.9, 15 & 40 | 8/75 |
| 1400 | Incorrect power pack usage on 1972 thru 1976 - 3 cyl. & V-4's | 12/75 |
| 1402 | Correction to Service Manual on 1976 - 200 | 1/76 |
| 1409 | Rev. 1 Change in wiring location on 1969 thru 76 - 4 | 2/76 |
| 1414 | Rev. 1 Hard starting or erratic ignition on 1969 & 1970 - 115 | 6/77 |
| 1418 | Electric trolling motor - Battery installation procedure on all models to date | 5/76 |
| 1419 | Rev. 2 Spark plug chart on all models to date | 2/79 |
| 1425 | Armature plate bearing improvements and lubrication on 1974 thru 1976 - 9.9, 15, 35 & 40 | 6/76 |
| 1428 | Electrical components bracket and ground leads on 1976 - V-6's | 8/76 |
| 1433 | Termination of rework program on Delco stator on 1961 thru 1966 - V-4's | 12/76 |
| 1435 | Heavier battery cables used on 1977 - V-6's | 5/77 |
| 1439 | Accessory ignition shut-off device on 1973 to date - 50 thru V-6 | 6/77 |
| 1442 | Thermostat kit on 1974 thru 1976 - 40 | 7/77 |
| 1443 | Sensor resistance and leakage tests on 1977 - 50 | 7/77 |
| 1445 | Armature plate improvement kit on 1973-1976 - 20 & 25 | 8/77 |
| 1447 | Change in flywheels on 1978 - V-4's | 10/77 |
| 1448 | Rev. 1 Power pack usage on 1968 thru 1979 - 4 thru V-6's | 7/79 |
| 1454 | Ignition coil internal changes on 1968 thru 1973 - 50 thru V-4's | 3/78 |
| 1456 | Assuring good electrical connections on 1977 power pack models to date | 3/78 |
| 1471 | Voltage regulator kit on 6, 9 or 10 amp alternators to date | 7/78 |
| 1482 | New hot horn on 1973 thru 1978 - 50 thru V-6 | 10/78 |
| 1483 | Wire shorting in remote control on 1979 - 55 thru V-6 | 10/78 |
| 1488 | Armature plate and pilot replacement kit on 1974 thru 1976 - 9.9, 15 & 35 | 1/79 |
| 1494 | Neutral start switch mounting nuts loosening on 1978 to date - 25 & 35 | 4/79 |
| 1501 | Cause of safety switches burning out on 1974 to date - 25, 35 & 40 | 6/79 |
| 1504 | Timer base lead interference on 1979 - V-4's | 8/79 |
| 1508 | Parts Catalog error on 1978 - 55 | 11/79 |
| 1520 | Minimum battery capacity recommendations on electric troll thru V-6 to date | 3/80 |
| 1527 | Identifying Delta Amplifier leads on 1970 & 71 - 60, 1970 thru 72 - 85 & 100 | 4/80 |
| 1531 | High reading temperature gauge and ammeter battery overcharge on 1978 thru 1980 - V-4's & V-6's | 4/80 |
| 1533 | Missing or failure to reach full RPM - incorrect rotor 1969 & 70- 115 | 5/80 |
| POWERHEAD, MANUAL STARTER AND MOTOR COVER | ||
| Bulletin # | Subject | Date |
| 1244 | Length of manual starter rope required for various models | 9/70 |
| 1266 | Correct installation of flywheel key on 1971 - 3 thru 25 | 7/71 |
| 1267 | Overheating from separation of impeller & hub; supplement to 1103 | 7/71 |
| 1270 | New spacer prevents distortion of control panel on 1971 - 2 | 9/71 |
| 1273 | Change in flywheel nut torque on 1972 - 50 thru V-4 | 9/71 |
| 1275 | Oversize pistons and rings for KC-13R Stinger racing model | 10/71 |
| 1276 | Cause of starter spring breakage on 6 and 9.5 | 10/71 |
| 1280 | Change in starter lockout cam adjustment on 1972 - 50 | 2/72 |
| 1294 | Lubricating spark advance lever at safety switch contact on 1972 - 50 | 6/72 |
| 1313 | Defective cylinder to crankcase bolts on 1973 - 85 thru 135 | 1/73 |
| 1321 | New procedure for adjusting starter lockout lever on 1973 - 20 & 25 | 6/73 |
| 1333 | Water in lower cylinder on 1971 thru 1974 - 50 | 1/74 |
| 1340 | Jumping out of gear and starter repair on 1974 - 9.9 & 15 | 3/74 |
| 1344 | Lockout lever removal on 1973 & 1974 - 20, 25 & 40 | 5/74 |
| 1347 | Water in cylinder on 1971 thru 1974 - 50 | 5/74 |
| 1352 | Water in cylinder on 1973 & 1974 - 135 | 9/74 |
| 1357 | Flywheel key installation on 1974 & 1975 - 9.9 & 15 | 9/74 |
| 1358 | Correct number of starter spool turns on 1974 - 6 | 10/74 |
| 1365 | High performance head kit on 1975 thru 1978 - 75 | 1/75 |
| 1376 | Low compression cylinder heads on 1970 thru 1975 - 3 cyl. | 2/75 |
| 1391 | Product improvements on 1976 - 70 & 75 | 9/75 |
| 1405 | Engine overheating on 1976 - 35 | 2/76 |
| 1406 | Change in cylinder head torque on 1976 - 35 | 1/76 |
| 1413 | New cylinder head gasket coating on 1976 - 9.9 thru V-6 | 4/76 |
| 1420 | Retorquing of cylinder head bolts on 2 thru V-6 to date | 6/76 |
| 1421 | Changes in 1977 models - 2 thru V-6 | 7/76 |
| 1424 | Service Manual correction on 1976 - V-6's | 6/76 |
| 1431 | Crankshaft appearance on 1970 thru 1973 - 40 | 9/76 |
| 1436 | Cause of overheating on 1976 thru 1978 - 35 | 5/77 |
| 1449 | Improvements to manual start engines 1977 - 50 | 1/78 |
| 1451 | Piston rings on 9.9 & 15 to date | 1/78 |
| 1473 Rev. 1 | Cylinder piston to skirt clearance on 1977 & 1978 - 2 thru 235 | 10/78 |
| 1480 | Special crankshaft seal rings on 1978 to date - V-4's & V-6's | 8/78 |
| 1484 | Starter pawl return spring on 1979 - 9.9 & 15 | 11/78 |
| 1485 | Repairing broken starter mounting boss on 1976 to date - V-6's | 12/78 |
| 1499 | Lower motor cover rattling on 1979 - V-4's | 6/79 |
| 1502 Rev. 1 | Low compression heads for commercial use on 1977 to date - 3 cyl. V-4's & V-6's | 10/79 |
| 1507 | Overheating due to blockages of cylinder water passages on 1979 - 4 | 11/79 |
| 1519 | Proper use of OMC Gel Seal on all models to date | 3/80 |
| 1534 | Proper method of selecting correct oversize bore - 1969 thru 1979 - all models | 5/80 |
| MID SECTION AND LOWER UNIT |
||
| Bulletin # | Subject | Date |
| 1238 | Installing converging ring on 1968 to date all thru-hub exhaust | 4/70 |
| 1243 | Eliminating overheating of propeller hub on 1969 & 70 - V-4's | 8/70 |
| 1246 | Heavy duty mounts for 1970 thru 1972 - 60 | 10/70 |
| 1252 | Overheating propeller hubs; supplement to 1243 | 1/71 |
| 1253 | Order correct swivel bracket seals on 1968 thru 1971 - 55 & 60 | 1/71 |
| 1257 | Causes of driveshaft breakage on 1971 - 40 | 3/71 |
| 1258 | Installing gearcase solenoid shift rods on 1971 - 50 thru V-4 | 4/71 |
| 1274 | New oil pump - service procedure on 1968 thru 1971 3 cyl. | 10/71 |
| 1278 | Advantages of using SST propellers from 1971 to date | 12/71 |
| 1281 | "Snap" shift improvement on 1960 thru 1970 - 18, 20 & 25 | 1/72 |
| 1282 | Erratic idle - relieve back pressure - adjust carburetor on 1972 - 20 & 25 | 1/72 |
| 1284 | Supplement to 1282 | 2/72 |
| 1290 | Securing propeller nut on 9.5, 20 & 25 | 3/72 |
| 1297 | Servicing 1968-69 hydro electric gearcases - Correct parts needed | 6/72 |
| 1300 | Proper use of flushettes on any adaptable model to date | 7/72 |
| 1303 | Replacing stern bracket clamps on 1972 - 50 thru V-4 | 8/72 |
| 1307 | Tank testing - Holding shift in gear during test on 1973 - 50 thru V-4 | 1/73 |
| 1309 | New drain plug and magnet on 1973 - 50 thru 135 | 10/72 |
| 1314 | New procedure for installing propellers on all thru-hub exhaust | 4/73 |
| 1315 | New neutral detent feature added to 1973 - 50 thru 135 | 4/73 |
| 1325 | New trailering lock arm on 1973 - 65 long & V-4's | 9/73 |
| 1337 | Plunger and snap ring program on 1973 - 50 thru 135 | 2/74 |
| 1339 | Checking thrust rod on all models to date | 3/74 |
| 1340 | Jumping out of gear and starter repair on 1974 - 9.9 & 15 | 3/74 |
| 1343 | Selecting correct mounting bolts on 1973 to date - 55 thru V-6 | 5/74 |
| 1346 | Lubrication of tilt tube on 1973 & 1974 - 35 thru V-6 | 5/74 |
| 1349 | E-Z-Duzit Gearcase lubrication fitting on all outboards and Stern Drives to date | 7/74 |
| 1350 | Service tips - tilt assist shocks on 1975 - 70 thru 135 | 7/74 |
| 1356 | Using correct propeller bushing on 1975 - 50 thru 135 | 9/74 |
| 1363 | Trim and tilt service tips on 1975 thru 1977 - 50 thru 140 | 4/75 |
| 1369 | Gear shift adjustment on 1975 - 9.9 & 15 | 1/75 |
| 1372 | Leakage at oil fill/drain hole on 1975 - 4W | 2/75 |
| 1374 | Selecting correct gearcase on 1975 - 70 B & E models | 2/75 |
| 1377 | New impeller housings on 1975 all models to date | 5/75 |
| 1378 Rev. 1 | Gearcase field modification program on 1975 - 70 thru 135 | 5/75 |
| 1379 | Small gearcase clutch dog on 1975 - 50 & 75 | 4/75 |
| 1384 | Incorrect model/serial number plates on 1975 - 70 | 7/75 |
| 1387 | Exhaust emulsion draining from gearcase on 1974 & 1975 - 9.9 & 15 | 8/75 |
| 1389 | Improving reverse thrust on displacement hulls for 1974 thru 1976 - 9.9 & 15 | 8/75 |
| 1393 | Trim and tilt cylinder assemblies on 1973 thru 1976 - 50 thru 135 | 10/75 |
| 1394 | New gearcase lubricant on all 1 1/2 thru V-6 to date | 12/75 |
| 1396 | Replacement water pump liner on 1976 - 4 90° drive | 12/75 |
| 1397 | Cooling system modification program on 1976 - 35 | 12/75 |
| 1398 | Proper mounting of engine on 1976 to date V-6's | 1/76 |
| 1407 | New plastic water pump housing on 1974 thru 1976 - 9.9 & 15 | 2/76 |
| 1410 | Operation of manual release valve on 1976 - V-6’s | 2/76 |
| 1417 | Replacement of gearcases on 1976 - 35 | 4/76 |
| 1430 | Oil pump service assemblies on 1976 — V-4’s | 9/76 |
| 1432 | Lower mounts on V-4’s & V-6’s to date | 9/76 |
| 1440 | Plastic water pump impeller housing failures on all models to date | 7/77 |
| 1444 | Correction to 1977 Master Parts Price Book | 7/77 |
| 1446 | Troubleshooting integral T—N—T on 1977 to date 75, V-4’s & V-6's | 10/77 |
| 1450 | Service gearcase on 1977 & 1978 - V-6’s | 1/78 |
| 1452 | Obsolete water pump repair kits on various years and models | 1/78 |
| 1455 | Pinion gear nut torque specification on 1976-1978 - V-6’s | 3/78 |
| 1459 | Power trim valve noise on V-6's | 4/78 |
| 1460 | Removal of driveshaft from 1976 to date V-4’s & V-6’s | 4/78 |
| 1461 | Lifting engines by exhaust housing covers on 1978 to date V-4’s & V-6’s | 4/78 |
| 1463 Rev. 1 | Water pump improvements on 1978 - 35 | 8/78 |
| 1466 | Servicing integral T-N-T on 1978 to date | 7/78 |
| 1467 | T-N-T stuck in tilted position on 1978 - V-4’s & V—6's | 7/78 |
| 1468 | Adjusting indicator gauge on integral T-N-T | 7/78 |
| 1470 | Change in lower mount system on 1977 - 25 to date, 1978 - 35 to date | 7/78 |
| 1477 | Separation of integral T-N-T valves from 1976 to date | 8/78 |
| 1478 | Corrosion of check valve on 1973 thru 1977 Prestolite T-N-T | 8/78 |
| 1481 | Lock up of tilt and reverse lock on 1977 — 140 & 1978 - 3 cyl. & V-4’s | 8/78 |
| 1497 | Procedure for shimming pinion gear on 1979 - 55 | 6/79 |
| 1498 | Replacement of relief valve o'ring on integral T-N-T | 6/79 |
| 1505 | Causes of propeller shaft breakage on 1977 & 1978 — 25 | 8/79 |
| 1506 | Gearcase lubricant level on all models to date | 8/79 |
| 1510 | Extension kit omission in Parts Catalog on 1980 — 4.5 & 7.5 | 12/79 |
| 1513 | Eliminating shift shaft sticking on 1976 thru 1979 - 25 & 35 | 1/80 |
| 1514 | Driveshaft to crankshaft spline wear on 2 & 4 to date | 3/80 |
| 1517 | Power loss due to hole burned in megaphone on 1979 - 150 thru 200 | 3/80 |
| 1518 | Premature pinion bearing failure on 1976 to date V-6’s | 3/80 |
| 1525 | Correct installation of clutch dog on 1980 - 4.5 & 7.5 | 3/80 |
| 1530 | Steering handle kits for 1979 - 6,1974 thru 1980 - 9.9 & 15,1979 thru 80 - 25/35 and 55 rope | 4/80 |
| 1535 | Improved bearing and gear kits/special alignment tool - 1960 thru 1979 - 18, 20 & 25 | 5/80 |
| CONTROLS AND RIGGING | ||
| Bulletin # | Subject | Date |
| 1241 | Remote steering system installation on 1970 - 33 thru 115 | 8/70 |
| 1296 | Proper mounting of engine on 1972 to date - 50 thru V-6 | 6/72 |
| 1302 | New steering installation recommendations on 1973 thru 77 - 50 thru V-4 | 8/72 |
| 1306 | Proper shift and throttle cable adjustment 1973 - 50 thru V-4 | 1/73 |
| 1318 | Remote controls without "start in neutral only feature" on 1973 to date - 50 thru V-6 | 5/73 |
| 1319 | Potentially dangerous steering kits on 1973 to date - 50 thru V-6 | 6/73 |
| 1320 | Electrical trouble shooting of remote control on 1973 - 50 thru 135 | 6/73 |
| 1360 | Correct method of attaching remote cables on 1975 - 70 & 75 | 10/74 |
| 1404 | Steering and fuel systems and drywell drain holes on 1976 to date - V-6's | 2/76 |
| 1408 | Possible interference in steering system on 1976 to date - 35 | 3/76 |
| 1457 | Field replacement program for OMC acessory controls | 4/78 |
| 1458 | Substituting motor tilt tube "Teleflex Bulletin" | 4/78 |
| 1476 | Remote control, dual installation with T-N-T on 1978 - V-4's & V-6's | 7/78 |
| 1521 | Correct installation of OMC long lifeTM (type "0") remote control cables | 3/80 |
| 1537 | Safety related considerations in rigging and testing a boat and motor | 5/80 |
| TOOLS AND ACCESSORIES | ||
| Bulletin # | Subject | Date |
| 1242 | Adjusting low speed needles on 1970 - 3 cyl. & V-4's | 8/70 |
| 1319 | Potentially dangerous steering kits on 1973 to date - 50 thru V-6 | 6/73 |
| 1363 | Trim and tilt service tips on 1975 thru 1977 - 50 thru 140 | 4/75 |
| 1366 | Dual steering recommendation on 1973 to date - 50 thru V-6 | 1/75 |
| 1393 | Trim and tilt cylinder assemblies for 1973 thru 1976 - 50 thru 135 | 10/75 |
| 1401 | 12 amp alternator kits for 1976 to date - 55, 70 & 75 | 1/76 |
| 1403 Rev. 1 | Ammeter kits for 1976 to date - V-6's | 1/76 |
| 1416 Rev. 1 | "Dole" power trim & tilt kit | 8/77 |
| 1423 | Causes of tachometer failures to date | 6/76 |
| 1426 | I nstalling plastic converging rings on 50 thru V-4's to date | 7/76 |
| 1437 | Test prop RPM with reverse thrust kit on 1976 to date - 9.9 & 15 | 6/77 |
| 1439 | Accessory ignition snut off device for 1973 to date - 50 thru V-6 | 6/77 |
| 1446 | Troubleshooting integral T-N-T on 1977 on date - 75, V-4's & V-6's | 10/77 |
| 1469 | Vertical elevating devices on models to date | 7/78 |
| 1471 | Voltage regulator kit 6, 9 or 10 amp alternators on models to date | 7/78 |
| 1472 | Emergency engine cooling using "Trouble Cooler" on models to date | 7/78 |
| 1486 | Frahm Resonant Reed tachometer | 12/78 |
| 1489 | Wiper nut for tilt tube steering on 1972 to date - 70 thru V-6 | 1/79 |
| 1511 | Install trail lock spring with power "tilt kit" on 1980 3 cyl. & V-4's | 12/79 |
| 1512 | Control knobs for accessory remote controls | 12/79 |
| 1522 | Selecting correct 5 or 6 pulse tachometer for - 6 thru V-6 | 3/80 |
| 1524 | Fuel line vacuum tester on V-4's & V-6's to date | 3/80 |
| 1526 | Handle cover kits for accessory controls | 4/80 |
| 1531 | High reading temp gauge and ammeter - Battery overcharge on 1978 thru 1980 - V-4's & V-6's | 4/80 |
| 1536 | Modification to T-N-T stand will allow bench testing after repair | 5/80 |
| MISCELLANEOUS | ||
| Bulletin # | Subject | Date |
| 1264 | Identifying improved lift bracket on 1969 thru 1971 - V-4's | 6/71 |
| 1293 | Safety and warning symbols | 6/72 |
| 1323 | Starting engines at speed on 1974 to date - 50 thru V-6 | 10/73 |
| 1326 | Ignition key blanks for 1973 to date - All electric start models | 10/73 |
| 1332 | Defective pivot screw on 1973 & 1974 - 65 thru V-4 with accessory T-N-T and 1974 - 115 & 135 with trim | 1/74 |
| 1348 | Maintenance in adverse conditions all models to date | 5/74 |
| 1351 | Hard starting on 1972 & 1973 - 50 | 8/74 |
| 1385 Rev. 1 | Recommended fuels 1 1/2 thru V-6 to date | 9/75 |
| 1390 | Lifting engine and removing from carton on 1976 to date V-6's | 9/75 |
| 1474 | Application of decals on all models to date | 7/78 |
| 1490 | Corrections to 1979 Service Manuals - 6 thru V-6 | 2/79 |
| 1496 | Engine failure due to improper break in procedure on 1979 to date - V-6's | 6/79 |
| 1500 | Use of parts cleaning solvents and aerosol products | 6/79 |