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So, I was riding my motorcycle one cool Friday night in November, while planning the rest of my weekend: start taking my donor apart, and call FFR on Monday to order my kit, along with optional parts. But those thoughts were interrupted by a disheartening metal-to-metal sound and a suspicious and abnormal wiggle of the frame as I was going over a speed bump. I stopped on the side of the road, but it was too dark to see anything; so I rode back home. Once there, I proceeded to investigate the issue, expecting the worst... and I was right. My heart sunk when I realized that the two gussets that hold the sub-frame to the main frame had completely broken off. The only things holding my rear tire and swing arm to the rest of the bike were the bolt that attaches the swing arm to the rear engine mount, and the shocks. It seems that every time I'm ready to initiate this project I've patiently waited for 10 years to start, something else comes up.
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So, instead of taking apart my donor, I found myself taking apart my motorcycle.
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I had the frame and other parts chemically stripped of powder coat, to make sure that there was no other damage to the frame. While all other welds were intact, I did find collateral damage done to the rear of the frame and the swing arm, where both parts were resting against each other due to the gussets' failure. Therefore, I designed new, stronger and wider gussets, to avoid this failure again. Here is a picture of my new gusset design on a cardboard template. Although it's a simple design, I calculated them to be over 3x stronger than the originals.
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While it was apart, I looked at the only section of the bike that remained somewhat intact, and couldn't help myself but to jokingly consider converting my motorcycle into an unicycle...
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Squared up the frame and held it together with tack-welded braces between the sub-frame and the main frame. Created the new gussets and tacked them up to the two mounting points. Checked the measurements and clearances again, and completed the welds. Additionally, the swing arm, kick stand, and back of the frame had steel added and ground down to restore their original shapes. Then proceeded to remove the temporary braces, and grind down the tack welds.
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As of this writing, the frame, swing arm, and other parts are at the shop, waiting their turn to get powder-coated. They should be ready for pick-up sometime next week. In the meantime, I've been busy almost every night in the garage, re-painting and cleaning the engine and collection of remaining parts. I also delivered the oil tank and rear fender to the paint shop, as they were the only tin that needed a fresh coat of paint. The front fender and fuel tank are still in good shape. And since all metal parts have custom airbrushing done to them, it would cost me my first born (if I ever decide to have one) to get everything air-brushed again. Once I get the tin back from the painter, I'll send them off to MD, to have the same artwork done by my friend. He has the original drawings I gave him, he does awesome work, and he gives me a discount; so sending the parts to him makes sense. Hope to have those parts back from him by the time I'm putting the bike back together. I guess that the one positive thought I can extract out of this, is that this is a warm-up for my FFR project. And although this was an unexpected and unwanted project, I actually look forward getting home from work in the evenings, so I can get in the garage and work on my bike. I can only imagine the excitement I’ll experience once I have the MK4 kit in my garage.
More updates and photos to follow.
Carlos