turbohead Posted October 6, 2018 Report Share Posted October 6, 2018 As I wrote above, sound level is (almost) comparable to stock. If you are in sensitive surroundings, don't go for a larger single outlet pipe or mx silencer. Regarding welding, I always use TIG for high stress or vibration exposed welds. You can get decent results using MIG, but the heat affected zone is bigger, the bead process is harder to control in detail, so I play it safe (or use my MIG to fix the parts and then do the actual welding with my TIG). Brazing with a gas torch (or TIG) is an alternative (but take some practice), specially on high alloyed steels. Quote Link to comment Share on other sites More sharing options...
briangg Posted October 7, 2018 Report Share Posted October 7, 2018 8 hours ago, dozerash said: I have been looking for those Aprillia parts with no luck! Ask Mike Komar. Again another new yorker. great guy and rider. i think he has some aprilia parts still. Quote Link to comment Share on other sites More sharing options...
htrdoug Posted October 7, 2018 Report Share Posted October 7, 2018 (edited) Instead of welding on the chromoly I made some plates from mild steel to relocate the pegs. Didn’t want to go radically back myself but it would be simple to make multiple plates to experiment with different positions. I utilized the stock footpegs for kicker clearance. Oh,and don’t go so low on the peg position that the saddle contacts your leg above the knee when you lean the bike into turns as it will pull your body inside the tire contact patch. Edited October 7, 2018 by htrdoug Quote Link to comment Share on other sites More sharing options...
dozerash Posted October 7, 2018 Author Report Share Posted October 7, 2018 17 hours ago, turbohead said: As I wrote above, sound level is (almost) comparable to stock. If you are in sensitive surroundings, don't go for a larger single outlet pipe or mx silencer. Regarding welding, I always use TIG for high stress or vibration exposed welds. You can get decent results using MIG, but the heat affected zone is bigger, the bead process is harder to control in detail, so I play it safe (or use my MIG to fix the parts and then do the actual welding with my TIG). Brazing with a gas torch (or TIG) is an alternative (but take some practice), specially on high alloyed steels. Thanks for the welding tips! I’m just a self taught welder so any advice is great. This does make my decision when I upgrade my welder on what I should get. I’m also going to look into continuing education welding classes. Quote Link to comment Share on other sites More sharing options...
dozerash Posted October 7, 2018 Author Report Share Posted October 7, 2018 3 hours ago, htrdoug said: Instead of welding on the chromoly I made some plates from mild steel to relocate the pegs. Didn’t want to go radically back myself but it would be simple to make multiple plates to experiment with different positions. I utilized the stock footpegs for kicker clearance. Oh,and don’t go so low on the peg position that the saddle contacts your leg above the knee when you lean the bike into turns as it will pull your body inside the tire contact patch. This is a great idea too! Do you notice much of a difference in width? Quote Link to comment Share on other sites More sharing options...
htrdoug Posted October 7, 2018 Report Share Posted October 7, 2018 First,sorry for the dirty bike,has just done Trialsmaster duty and got parked into the corner as I needed a bit of a break in thinking about trials... I actually kinda like the narrower side to side width as it allows easier access to the end of the footpeg as I lean the bike. wouldn't mind a bit more for and aft width but also like the look of stock pegs so just not worrying about it right now. Quote Link to comment Share on other sites More sharing options...
dozerash Posted October 8, 2018 Author Report Share Posted October 8, 2018 On my 1980/81 that I'm rebuilding. I moved the new foot pegs as low and far back as I could, I used my MIG welder. I didn't add any extra metal. I bought these pegs from Martin at MotoSWM. For some reason I'm not allowed to download anymore pictures. Quote Link to comment Share on other sites More sharing options...
dozerash Posted October 8, 2018 Author Report Share Posted October 8, 2018 (edited) My modified 80/81 foot pegs. Edited October 8, 2018 by dozerash Quote Link to comment Share on other sites More sharing options...
dozerash Posted October 8, 2018 Author Report Share Posted October 8, 2018 My 1980 bike. Quote Link to comment Share on other sites More sharing options...
dozerash Posted October 8, 2018 Author Report Share Posted October 8, 2018 My 1982 bike. Quote Link to comment Share on other sites More sharing options...
section swept Posted October 8, 2018 Report Share Posted October 8, 2018 (edited) On 06/10/2018 at 8:00 PM, turbohead said: As I wrote above, sound level is (almost) comparable to stock. If you are in sensitive surroundings, don't go for a larger single outlet pipe or mx silencer. Regarding welding, I always use TIG for high stress or vibration exposed welds. You can get decent results using MIG, but the heat affected zone is bigger, the bead process is harder to control in detail, so I play it safe (or use my MIG to fix the parts and then do the actual welding with my TIG). Brazing with a gas torch (or TIG) is an alternative (but take some practice), specially on high alloyed steels. Sir Bronze welding with an oxidising flame (less acetylene) is relatively easy to perform if you practice on some scrap metal first. Good thing about Sif Bronze welding is it is strong and as you only heat the metal to dull red then back off until it goes blue then go back in with flame and bronze rod that heat path allows the metal to expand further across its body so there is less chance of cracks as it cools after being joined. You can heat the join back up and take apart if necesssary. It absorbs vibration well and is the preferred joining method of many frame builders. Whereas Brazing, often confused with Bronze welding is not as near as strong or the best joining method for footrest hangers. MIG in the right hands is just as good as TIG but never produces as neat a weld bead size as TIG. Most frames were MIG welded in the 70’s and 80’s. You are lucky to be able to afford a TIG welding set, to most it’s a dream welding must have? Edited October 8, 2018 by section swept 1 Quote Link to comment Share on other sites More sharing options...
dozerash Posted October 11, 2018 Author Report Share Posted October 11, 2018 Did SWM have there own shop manual? Quote Link to comment Share on other sites More sharing options...
b40rt Posted October 11, 2018 Report Share Posted October 11, 2018 (edited) On 07/10/2018 at 10:13 AM, htrdoug said: . Oh,and don’t go so low on the peg position that the saddle contacts your leg above the knee when you lean the bike into turns as it will pull your body inside the tire contact patch. ??? Great advice for the (severely) vertically challenged ! Probably not a problem for most riders, unless the footrest are actually dragging on the ground !! Edited October 11, 2018 by b40rt 1 Quote Link to comment Share on other sites More sharing options...
dozerash Posted October 19, 2018 Author Report Share Posted October 19, 2018 (edited) I had a great Trials last Sunday! It was the last NYACT event of the season. My 1980 SWM worked great! I might also try higher bars or bar risers. Edited October 20, 2018 by dozerash 3 Quote Link to comment Share on other sites More sharing options...
b40rt Posted November 3, 2018 Report Share Posted November 3, 2018 On 06/10/2018 at 4:29 PM, motoswm said: If you find an Aprilia TXR or Climber clutch cover, make sure you get hold of the clutch pressure plate and the centre hub, makes it feel about 20% lighter over the standard SWM parts @brownie001 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.