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  #51  
Old 3 Weeks Ago
Hornsmith Hornsmith is offline
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I cleaned out the accelerator pump, though lucky for me it was actually quite clean. Always nice to know what's inside your bike though. Additionally, I took it for a short ride and noticed a few things. Firstly, since I raised the back of the bike, the rake is very steep (like extremely steep) and handling is much worse. Probably this is also because of the relatively massive rear tire. Secondly, the final drive ratio is not gonna work for this motor. With the larger rear wheel, torque is less. With the smaller rear sprocket, torque is also less. Additionally the front sprocket is 1 tooth larger (to accommodate the wider belt) reducing torque even more. The original ratio was 80/27 with a 16 wheel. Now it's 65/28 with a 17 inch wheel. While putting it together I knew this would probably be an issue, but I was hoping that the hopped up motor would be able to do it. This is not the case, and it just bogs down if I try to accelerate. Either way, the rear sprocket came with the wheel I got, so it's not a real loss there. Also, the 1125CR had a 76 tooth rear sprocket, which I have now ordered, and hopefully that'll fit the bill.
Also, I'll have to look into ways of changing the rake. I could do a front end swap, find longer fork tubes, or find a shop that's willing to rake out the front. Problems with these are that the Blast forks are 37mm which is sorta hard to find, and raking the front would come with it's own problems, like lowering the front which would make the whole bike even more tilted forward. I think it would be sick to put something like a springer on it, but obviously no one makes springer front ends for the blast, so it'd have to be custom, or maaaybe it could be adapted, but I'd have to look into that.

Also, here's a link to a pic of the new exhaust flange I got. I like it quite a bit. Also I have 1 spare if anyone needs a single exhaust flange XD
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  #52  
Old 3 Weeks Ago
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Don’t rule out a springer front end, might be as simply as a bearing swap?
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  #53  
Old 3 Weeks Ago
Bruce Clarke Bruce Clarke is offline
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Love the look of that flange, it reminds me so much of the ones that were on my '71 Triumph. Where did you get it?
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  #54  
Old 1 Week Ago
Hornsmith Hornsmith is offline
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I was thinking about getting a sprinter, I really like the look and I've heard lots good things about them. However, I'm pretty sure that the blast steering stem is very different, like way longer than you'd expect. The frame is thick because of the oil tank, and then the motor is separately welded to the steering tube at a lower section, so I think it wouldn't be thaaat easy.
Also, I picked up the flanges on eBay a while back, I'll see if I can find more about them. I always like the look of finned flanges and the flange on my Buell was a bit bent already, like over tightened or something and odd. I'm sure it could still seal, as it was putting plenty of pressure to keep the header pressed into the gasket, but it was really hard to get it over the studs.
Additionally I've started welding a wee bit. I'm very much a beginner, and don't have a welding machine, but I've been using old spare motorcycle batteries wired together. Three wired up makes my than enough to use stick welding rods, and I've extended the kickstand so it can touch the ground.
The setup splatters a lot of metal though, and I can only run them for a few minutes before they start to get low. Then I charge them for an hour or so and continue. Not efficient, but hey, that's what I got. I'm gonna try some thinner sticks and only two batteries and see how that goes.
Also, I think I'll just move the shock mount up to lower the bike back down. Way easier and cheaper, and it's pretty extreme right now. I'll have to cut up the bottom of the seat pan, but that's not too hard.
Anyway, I'm out of town for a family gathering and I'll get to it soon enough
(Edited to correct spelling)

Last edited by Hornsmith; 1 Week Ago at 16:21..
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  #55  
Old 1 Week Ago
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rokytnji rokytnji is offline
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Might wanna google search ait cooled sportster exhaust flange to find em maybe. I run em on my shovlehead.
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