This is my next project. Given by a friend who's son ran the engine out of oil. Broke rod..It is the one with springs. pivot point..and jackshaft..(?)..Therein lies my question..The clutch..and I'm assuming it came off the original engine.. has 2 12 tooth sprockets..and 2 chains..BUT..the jackshaft has only ONE sprocket. Is the shaft damaged..or do I have a clutch from something else..I will use a 4-5 HP Briggs.Also..does the scrubber brake..(the only one on the bike) use some sort of lining on the steel ?..thanks..JV..ANY help or advise on this bike will be most appreciated. I just finished a Wards 325 for one grandson. This is for another..