Servicing

I usually do the following.
 
Engine oil and Filter every 2,500-5,000, No more then 6months ( Depends on what type of driving, ie track VS street)
G/Box oil - 10-15,000 ( or before a long trip )
Diff - same as gbox
Coolant - Every 12months (or if it gets hot for any reason)
Brake Fluid - Every 12months
Spark Plugs - When ever i service it, or do a big trip, or put it on the dyno
Fuel Filter - 10-15,000 (unless i am suspect of bad fuel)  EFI filters, carby filters may need more frequent replacing
 
Call it all a bit frequent but as im in the trade i get most oils / parts at a decent rate (or free) and my time is free. But as im either always breaking stuff of upgrading/fixing things most items will we renewed or replaced more frequently.
 
I tend not to bother with cleaning plugs, unless im out and about and desperate. At around $3 each i prefer to slot a new set in, but it all depends on how over fueled the car is ect. Longest id leave a set of plugs in a motor for would be 20,000km and even then id check the gap at 10,000. 
 
Hope this has been some help to you.
 
 

At least once a year (I do it round christmas holidays) i disconnect battery and remove all the fuses and carefully clean with a bit of emery and bend/re-tension the holders. Find this helps to keep the electrical gremlins at bay

My preseason also includes bleeding the brakes to clear the old fluid from the calipers. Cleaning out and tickling up the back drums was also done when i had them. Dont forget the car trailer brakes, hub bearings and grease points as it may do more km's than your toy

Thanks guys, I bleed brakes a few times a year before events so probably good there
 
Greasing hubs is something I didnt think of though
 
Did valve gaps a couple days ago actually, hate doing it on my 2L, cant get to the locking nut with the spanner on cyl 3 exhaust valve, not sure how people do that bloody valve with the downdraught carb there, im lucky it wasnt out. Also have my heater hose going right over the top of the rocker cover which makes life fun taking the cover off
 
As far as valve gaps go, should I stick to what the manual says? Inlet 0.2mm and exhaust 0.25mm for the 2L it says
 
Thanks again
Ryan