After trashing the main bearings on my 999 on the track I spoke to a lot of Ducati guys and someone claimed that "you have to take the engine apart after 30-40 trackdays (approx 50 driving hours) to avoid expensive problems". Really? Do Japanese trackbikes need the same amount of preventive service to avoid breakdowns? br Jim
It is recommended that jap and euro bikes have regular engine rebuilds when used on track. Gearboxes too especially on the latest big power bikes, the rsv4 and S1000rr chew through gearboxes like you would not believe.
Sounds about right for the earlier bikes but I thought the later ones were more reliable. Wish I had stripped my 996 a bit earlier and saved some damage. Friends GSXR however just keeps rolling along with only regular oil changes
A couple of points 30-40 trackdays would be more than 50 hours, unless you are only riding for around 4 of the 7 or so 20 minutes sessions around equals 1 1/2 hours (pS you been watching me?:biggrin on somewhere like silverstone say around 2'30" a lap over around a 3 mile lap is only around 3000 miles compare that to the service intervals for a road bike! although i understand you may well be riding harder on the track. Then compared to a full blown F0 or RS, that may well suggest a rebuild every 600 miles that means you would of rebuilt your engine 5 times for your 30-40 track days.....that means 6 cranks 6 pairs of ti rods, possibly 6 crank case sets, the list goes on and on........and the cost!!!!! secondly, i think the 999 1098 mains were/are a weak point, they modified the bearings and a top hat spacer that they sit in. the mains went on my 999R which meant new crank cases etc etc. i also think some of the mains problems were down to incorrect pre load during the original build or balance or bot,h but thats difficult to evidence. I guess you know how hard you are riding it and can only adjust your service intervals to how you ride, how the bike is set up and rev limit. Is it any different to a jap bike i dont think so!
ive got a picture somewhere of the inside of my original 999R crankcases and a comparison to the F02 ones i now use. the pictures show the webbing and support for the mains oil galleries and where the crank cases crack!
Thanks all for answers - don't tell anyone but today right after delivering the stripped 999 engine block for bearing renovation I will be looking at (and probably buying) a really nice trackready '07 GSXR 750 as backup trackbike. I can't face NOT driving any more trackdays this season and I expect the renovation to go on for the next two months. ....and then time will tell which one will be for sale... br Jim