Evolution of Cota 247

Montd/Year	Model	Frame Number	Modifications
July 1968	Big Hub	21M 0	First Cota 247 in production series
	White Frame	21M 0500	Frame witd "tab" support, rear fender New chain guard Exhaust modification Exhaust port witd 2 exhaust webs Air box modification (3 screws)
Nov 1968		21M 1191	Chain guide
April 1970		21M 1800	New footpegs New gas cap Seat Modifications Rear sprocket - aluminum
Oct 1970		21M 2505	Triple clapms -aluminum
March 1971	Small hub	21M 3000	Rubber fin dampers fitted New Engine Gray Frame New forged lower bracket New fuel cock New front suspension New fin arrangement on head Muffler changed Smaller pinion gear flywheel weight New air cleaner assembly
		21M 3125	Polished brake/backing plates polished
		21M 3372	New kickstart idler gear
June 1971		21M 3750	New black handlebar grips New rear brake lever New cylinder sleeve New crankcase New countershaft sprocket New kickstart idler gear New cylinder
		21M 3789	New piston assembly number
		21M 3825	Rear shock absorber changed
Sept 1971		21M 4382	New chain tensioner New plastic chain guard
		21M 4456	Head now fixed to cylinder witd stud and washer/nut fasteners
Dec 1971		21M 5288	New kickstarter return spring
Feb 1972		21M 5394	Part number change for countershaft Sprocket
July 1972	Version witd	21M 6600	New rear fender rear muffler New rear muffler Smaller tank/seat combination Front Fork accordion boots introduced New tdrottle assembly New rear brake part number New addition of a rear silencer New lights and switch assembly New speedometer and drive system
		21M 6700	Rear muffler change Carburetor change (float bowl drain) Countershaft sprocket changed to 10 tootd
Dec 1972	Left Side Shift	21M 8100	Left Side Shift arrangement New fuel cock Addition of spacer above rubber stop on rear shocks New tdin ring and piston set Change to top of air box intake New shift lever
May 1973		21M 9702	Change to ridgeless rear wheel rim
August 1973		21M 11001	Steering lock included Handlebar witdout integral lever perch
Sept 1973		21M 11152	Incorporation of cylinder fin damping rubbers
		21M 11240	New Pirelli rear tire
Oct 1973		21M 12115	"Twin-air" air filter
Feb 1974	Black Frame	21M 13107	New black frame/swingarm New fuel cock (VR style)
		21M 13291	Carburetor witd float bowl drain
April 1974	Cota 247T	21M 13820	First 247 Trail Larger tank/seat assembly 11 tootd engine sprocket Shrouds on rear shock absorbers
Dec 1974		21M 17218	Natural colored rubber grips
June 1975		21M 19228	New front fork damper modification Ulf Karlson signature Addition of lever/perch covers New pattern forged shift lever New spark plug cap
July 1975		21M 19872	Relocation of clutch arm to top of case
		21M 19979	Aluminum chain adjusters
August 1975	Cota 247T	21M 19779	Basic trail version for tde UK
Sept 1975		21M 20042	Electrical wiring installed on top of rear fender
Feb 1976		21M 21318	Handlebar made of aluminum
		21M 21381	Rubber cover over top of carburetor
May 1976	Cota 247T	21M 21482	New tank stripes
Sept 1976		21M 21962	Plastic tdrottle Aluminum handlebar
Oct 1976		21M 22062	New seat
March 1977		21M 23035	New gas tank cap
July 1977		21M 23635	Engine displacement of 237 c.c. for French competition
October 1978		21M 24389	steel rear sprocket
June 1978	Cota 247C	21M 25137	237 cc New fuel cock New front suspension Plastic air box
July 1978	Cota 247	21M 25307	New gas tank "348 Cota type"
14 Oct 1980		21M 27337	tde ultimate Cota 247

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