A forum for owners of Yamaha TTR250 trail and enduro bikes!

Very good question Aidan! It is one that comes up regularly at our trail riding group meetings.

Eventuallyy we put together an item for our local forum - see http://devongtrf.activeboard.com/t23334689/preparation-some-advice-for-those-new-to-trail-riding/

I think it would be a good idea to check you can remove front and rear axles with the tools you carry. Make sure they are well greased to make the job easier.

If you are doing water crossings, make sure that you can undo the drain screw on the TTR carb as they often seized in place. Better to fix in your garage than find out when you have flooded the carb on the trails.

To save you reading the whole posting, this is what it says about spares to carry (slightly post-edited by me). Most of it obvious I know.

Spares to Carry 
Tube - 21" front if you can only carry one as this will do for the rear. 
Chain - short piece 2 to 3 links + joining link plus chain splitter.
Spare levers for your bike - clutch/front brake.
Tyre levers two minimum, decent spoon type.
Tools spark plug spanner, pump or CO² cylinders, pliers, screwdriver (Pozidrive & plain), spanners to remove both wheels, tow rope, cable ties, some spare nuts and bolts with washers, spare inner cable kit to fit throttle and clutch & elastic bands (cut from old inner tube).
Spare Bulbs if travelling at night.
Small first aid kit.
Recovery Service - If your a member of a recovery service, it'd be handy to take your membership card with you on the trail.

Chocolate bar.
Wallet or some money.
Can of tyre inflater.
Mobile phone.

Brian