jfcpeng

What sort of two stroke is it? Is it a humped cast iron piston? Just find out the existing ring gap and the piston clearance. It is often cheapest and easiest to resleeve the barrel down to the existing piston with new rings. The ring gap is very imporatnt on two strokes, as is the correct piston clearance at the crown and skirt. If it is air cooled, be guarded talking to outboard people. It usually pays (especially say a racing engine) to run the motor to warm to hot, strip it and rehone it to reduce high spot seizures. Make sure rings are free to move as rings do most of the work! They usually seize/tighten above exhaust port. Do not use synthetic oils!

Just joined then logged in, but lost the thread I was reading on rust in the fuel tank. I'll put the tip here, cos dinner is nearly ready and I want to give a cure for rust. Rust in fuel tanks, etc. Apart from molasses (Idon't know about it but I have heard good tales), use a counted handful of nuts and bolts and rattle tank to loosen big surface rust pieces which are almost loose. Count nuts and bolts out. Rinse tank with water and all debris, put in sun for a week, vent upwards. Now mix shellac and metho like French polish, say about a litre (in Australia) a few pints for the USA. Put in tank, shake, put shellac/metho bag in jar. Put tank in sun for a week. Re-apply French polish coating two more times or whatever. Petrol does not effect shellac. Rust dust blocks lines, filters, jets, goes into engine as fine metal pieces. Clean fuel lines, coated in shellac, vac tanks (some I have rusted through), etc. Rust causes a cylinder to miss if the plug whiskers. My VF750 Honda circa 1980s had fine rust in the carburettors and jets, even though all fuel goes through a paper fuel filter after an electric fuel pump (probably why), simply from surface rust in the tank.! Shellac all surfaces which may put rust in fuel and careful where the filter is where a vac system is used or electric pump.! Spread the tip, but especially not to T owners!