There are two different style thermostat housings,one for the 250 and one for the 292.I looked at the first post and sounds like you have a 292 housing.If you have a plug that tightens up, should work with a light rad.cap (12 psi I think is stock).I got a 292 to take out next week,I'lll look at the Thermostat housing.If you get a chance, stop by a junkyard or Pull-a-part and find a Thermostat housing off a 250.
You can find the radiators at Speedway,Jeg's,Summit,Day's Motorsport,basically at anyplace circle track parts are sold.I got mine from Performance Bodies in Iowa.The reason the are a bit better is the have two flues 1"or 1 1/4" wide for more surface area for the fins.The radiators come in three flavors,single,dual and triple pass.The end tanks have baffles in them to force the coolant back across. Coolant goes across the top, down, and back across the bottom on a double pass.Triple flow, the coolant crosses the radiator three time.You can get by with a single flow on a 250.Single flow cost about 160$ or so. The triple flow is a bit more expensive.We hotlap at temps up to 100 plus in summer and the temp runs about 200 degrees when he parks the car afterwards.
spring being gone on the exhaughst would just cause it to take a bit longer to warm up.
Nice bikes,can you put a suicide shift on any bike?
