There’s no need to drain anything, just lay the bike on it’s side remove the clutch casing with the water pump attached. If you’re careful you should be ok with the gasket, just ensure you align the water pump shaft fork up when putting the casing back on. Check your coolant and oil levels when complete.
Hi,
I run my son's Rev 50 on Putoline MX5 at 50ml to 5 litres of super unleaded. These bikes have a tendency to run rich, fouling the plug and leaking oil from the exhaust silencer. I've found if you run it at this ratio and replace the exhaust silencer packing at regular intervals you should have no problems.
Hope this helps.
Hi, I'd test the stator. West Country Windings will test it and re-wind if req'd.
http://www.westcountrywindings.co.uk/
Best of luck, these bikes are notorious for not starting.
I had the same problem with my 300, the crank seals where changed and this stopped the oil leaking from the breather. I'd check the oil level first as stated in the previous post.
Good luck.