I posted this mini in the Whatsit section (Sears/Roper), and in the course of forming a strategy for putting it together, noticed I might be missing some parts, and developed some concerns.
Anyway, I plan to use a 5hp HSSK50, and think that would work nicely. However, if you’ll notice, my bike has some alien (to it) 10” wheels, and it appears it has no jackshaft assembly (as I’ve seen on most of these). The rear sprocket is a 52 tooth, and the tire OD is about 16”.
At first, I though I’d go the simple route, slap a 10T clutch on there, and direct drive it. However, that gives me about a 5:1 gear ratio driven through that 16” OD tire. I’m concerned that’s too high for a friction clutch and the 5hp engine.
Question is, does anyone think it necessary for me to build a jackshaft assembly to lower the ratio? Is a TC a better option (would it fit?). I’d rather not do either of these things if not absolutely necessary, but if direct clutch drive isn’t going to be very usable, I’m welcome to suggestions!
Anyway, I plan to use a 5hp HSSK50, and think that would work nicely. However, if you’ll notice, my bike has some alien (to it) 10” wheels, and it appears it has no jackshaft assembly (as I’ve seen on most of these). The rear sprocket is a 52 tooth, and the tire OD is about 16”.
At first, I though I’d go the simple route, slap a 10T clutch on there, and direct drive it. However, that gives me about a 5:1 gear ratio driven through that 16” OD tire. I’m concerned that’s too high for a friction clutch and the 5hp engine.
Question is, does anyone think it necessary for me to build a jackshaft assembly to lower the ratio? Is a TC a better option (would it fit?). I’d rather not do either of these things if not absolutely necessary, but if direct clutch drive isn’t going to be very usable, I’m welcome to suggestions!
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