Feel the heat
The carbs on my 1988 Yamaha TDR250 restoration project are beyond salvaging. However I do have a pair from a TZR250 of similar vintage. The TDR ones are plumbed into the cooling system presumably to offer some form of heating to prevent carb icing. Can I use the TZR carbs instead if I blank off the coolant unions between engine and carbs, or am I asking for trouble? Luke Dellar, email
Alan Seeley says: Not only can you do it but we have ourselves done it and for exactly the same reasons. Just check that the jets, slides and needles in the TZR carbs are the same as the stock ones for the TDR.