Hi All
This is my first post here. So first off Hello from Northern Ireland! I bought a 2003 Banshee last April and ran it all over the summer. It then went into the garage over the winter. The quad ran great the whole summer, well I thought it ran great but then again this is my first quad and first two stroke.
So the whole summer the quad started first or second kick from cold but always seemed to smoke more from the left exhaust than the right. As the quad was being stored away over the winter I thought this the best opportunity to take some parts off and clean them, the carbs being the main ones.
While I had the carbs, reeds and exhausts off I was able to look up into the cylinders and noticed the right piston had a small part broke off. I believe this may have been part of the reason why the left cylinder wouldn’t have been smoking as much? Possibly lower in compression?
So I have pulled the cylinders off and there is part of the piston and ring broke off, I am hoping these have went out the exhaust port and not down into the crankcase. The pistons that were in the quad were Pro X .50 oversized. I have the cylinders away getting re-bored out and new pistons.
The quad is completely stock apart from the tailpipes. There is the stock fat part of the exhaust but seems to be some sort of aftermarket silencers on the back. There is no make or model number on them. Just blue tailpipes. Everything else is stock.
My question is, the carbs had a 200 main jet and a 25 pilot jet and the air screw was 4 turns out. My elevation is between 50ft and 300ft above sea level and my riding temperatures vary between 50 – 90 degrees Fahrenheit.
Does the jetting sound right on the quad?
I run the quad on normal 95 octane unleaded fuel with a 32:1 mix with Castrol Power 2T Racing.
While the cylinders have been away I have got a compression tester and made a leak down tester (thanks to guide on this site) and will test these when I reassemble the quad.
Like I said this is my first 2 stroke so any help will be much appreciated!
Thanks!
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