Hi all,
My first build was going to be 66cc HT motor in a cruiser frame, but as luck would have it, I stumbled across a free Ryobi 30cc weed eater motor on Craigslist a couple days ago. It was missing attachments, but "ran great", so seemed perfect.
Of course, when I got it home I found that it had a brand new spark plug and did not start. I can only assume the previous owner tried to fix it, failed, then decided to dump it on CL. The fix was easy and visible, though, the three screws tightening the cylinder to the crankcase had backed off, so I was losing compression. Tightened them up, and she fired up on the third pull. I just need to take those screws off again and put on some Locktite.
Anyways, on to the issue. I want to build a friction drive setup on my 26" Mongoose mountain bike. BUT, I want to be able to run with a support bearing on each side of the roller. I am assuming this means that I will have to extend the driveshaft. I have not pulled the clutch off yet (I need to pick up a T-handle torx wrench today), but am assuming the drive shaft is a threaded rod. The problem is, I do not weld. Would it be OK to use a threaded coupler to another section of threaded rod, and use JB Weld inside the coupler?
While I prefer the simpler build of not having support bearings, I fear breaking the shaft or killing the motor bearings in a short period of time...
Thanks!
My first build was going to be 66cc HT motor in a cruiser frame, but as luck would have it, I stumbled across a free Ryobi 30cc weed eater motor on Craigslist a couple days ago. It was missing attachments, but "ran great", so seemed perfect.
Of course, when I got it home I found that it had a brand new spark plug and did not start. I can only assume the previous owner tried to fix it, failed, then decided to dump it on CL. The fix was easy and visible, though, the three screws tightening the cylinder to the crankcase had backed off, so I was losing compression. Tightened them up, and she fired up on the third pull. I just need to take those screws off again and put on some Locktite.
Anyways, on to the issue. I want to build a friction drive setup on my 26" Mongoose mountain bike. BUT, I want to be able to run with a support bearing on each side of the roller. I am assuming this means that I will have to extend the driveshaft. I have not pulled the clutch off yet (I need to pick up a T-handle torx wrench today), but am assuming the drive shaft is a threaded rod. The problem is, I do not weld. Would it be OK to use a threaded coupler to another section of threaded rod, and use JB Weld inside the coupler?
While I prefer the simpler build of not having support bearings, I fear breaking the shaft or killing the motor bearings in a short period of time...
Thanks!
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