Hello to all.
Forgive me in advance for I am a 100% DIY'er and like a Monkey, when I SEE, I DO. And so after spending huge amounts of time reading your posts and looking at all the pictures, my story begins.......
One day while I was helping a friend clean his 4 stroke carb with a highly flammable cleaner (you spray into the carbs while in WOT) I decided to do the same on the Banshee, dumbass idea. You probably guessed it, burn a hole on the piston. Had the cylinders rebored next size up, new Pro-X pistons, rings, gasket etc. Decided to buy a dremel and began to grind away. Dont ask me what type of porting I did, perhaps you guys can tell me? Had the head skimmed to .030" and re-assembled the motor. It fired up with no problems but it smoked quite a bit and then I realized that I was still running a 20:1 mix. Changed the mix to 32:1 and ran a couple of heat cycles before taking it out for a controlled ride, you know, ride 10 minutes, cool down. During this ride I only smelt the normal 2-stroke smell.
The following week-end I joined some friends for a good ride and that’s when I noticed a strange exhaust smell, different from the normal 2-stroke oil. It smelled like jet fuel, hard to explain in words but I thought perhaps you guys can explain this one? I had visual confirmation from a friend that my pipes were smoking in case you wondering I might have too little 2S oil. The air temperate during the ride was +/- 90F and I was ridding hard. The bike runs great, beat a piped TRX450R if I may use it as a bench mark.
I know you have lots of questions and in no particular order I am just going to type what comes to mind;
Stock banshee with exception to unknown port & skimmed head, stock pilots, #200 mains, clip 2nd from the flat part and stock pipes.
Elevation +/- 6000 feet
I checked the plugs and it is between light grey to the coffee with cream color,
I have checked for loss of tranny oil and water in the oil but all negative,
I have checked the radiator water, no loss.
Fuel type here in South Africa – Unleaded 95 octane, not sure of your equivalent.
Ratio 32:1 YamaLube 2S oil
I don’t really want to remove the head unnecessarily so I will wait until I receive your replies.
Thanks
Imageshack picture links;
http://imageshack.us/photo/my-images/210/snc00007hf.jpg/
http://imageshack.us/photo/my-images/189/snc00004pr.jpg/