kwskodaman

It is a very good idea to fit the access plate - well worth the effort since the final drive sprocket lasts 2 seasons if you are lucky with all the gunge that gets dragged around! It is then just a matter of taking the clutch off to replace it..... Note you need to mill the access plate surface area flat since the crankcase casting behind the clutch is not guaranteed to be parallel to the crankcase centre line. Regarding the lower second gear.... I have fitted this set up to 3 cub motors. Be aware that there is a hardened splined thrust washer that sits behind the layshaft 4th gear in a recess in the back of the gear on the existing shaft. This is designed to let the layshaft 2nd gear rotate but not rub against the 4th gear. If you pull against the existing 2nd gear to get the 4th gear off this thrust washer gets damaged and I could not source a replacement. It is best to pull the layshaft 4th gear off with a puller if you can manage it although it can be hard to shift!! That's Triumph precision engineering for you..... FYI I managed to get round the damaged thrust washer by substituting with two gudgeon pin type circlips in the groove on the layshaft which gave the correct clearance for the new lower 2nd gear. There is little or no side thrust on the gearbox shafts (or shouldn't be!!) so this worked OK for me. Hope that helps.... I went to the GP... he diagnosed Cub Mania.... there is no known cure apparently.....

Lower 2nd gear is most definitely worth the effort - it is much more useable in sections! I have used electrex world on all my cubs - fit and forget