Tuning, fuel, petcocks, tank, fuel lines and related service bulletins
Fuel overflow idle jet screw replaced, Oct. 1952
Improved fuel feed to carbs, Nov. 1952
Ignition timing change for R25/2, R51/3, R67/2, R68, Dec 1952
R25/2 SAWE carb cable jamb, tuning, carb June 1953
R25 & R25/2 ignition timing, tuning, ignition timing July 1952
New improved R27 air filter, tuning, R27 air filter July 1963
New mechanical advance unit, tuning, mechanical advance unit June 1964
New flywheel timing marks, tuning, flywheel timing marks June 1964 due to the above change
Fuel issues bulletin 5-79-7NS
Gas cap lock bulletin 11-79-11NS
Carburettors on the /6, 122 M, June 1974
R90S carb mounting 148 M, November 1974
Repairing fuel taps (petcocks), 1051 R, June 1978
Lean R65 carb, 1068 R, May 1979
Lower compression /5 073 M, June 1973
Pulse air system modification, 2035 May 1981
Engine idle speed variations, 2055 March 1982
More idle speed issues, 2072 Feb. 1983
High altitude performance adjustment, 2080 Nov. 1983 I included this for a bit of humor. Who is going to do this?
Mods to all 800 cc models, 2120 Aug. 1984 Translation, they run like crap.
Don’t use gasohol, 2134 Dec. 1984
California fuel evaporation emission system, 2186 Dec. 1985
Fuel evaporation system warning, 2187 Dec. 1985
Fuel cap dust lip damage to tank, 2244 July 1987 read the next one below
More about the above dust lip damage, 2486 Oct. 1991
Improved air filter, 1981 on, 2245 March 1987
High altitude performance, 2399 March 1990
Fix your vibrating 1988 R100 carb, 2414 Aug. 1990
R & K series fuel filter issue, 2794 Nov. 1997
Coil troubles, 2572 Jan. 1993
Spark plug torque error, 2864 Feb. 1999