April 07... Daves Trumpy bobber

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Prof
Founder, Choppers Australia
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Joined: Sat Oct 22, 2005 3:54 pm
Location: Willunga, South Australia
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April 07... Daves Trumpy bobber

Post by Prof » Mon Jun 10, 2013 10:05 am

I bought the Triumph in March 2006. It was a good basis for a bobber, but needed cleaning up and some repairs...
eg. The risers had been mounted using garden hose instead of rubber so the bars turned 1/2 inch before the yoke started moving! Also the seat was mounted s0 that checking the oil was a major mission (not good for a Triumph!), the brake light switch was missing and there was quite a bit of rust around.

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I wanted to stick to a modest budget so all the rust was wire brushed off to see if it was presentable. It took about 4 nights in the shed and a Saturday to wire brush all the spokes with a Dremel and then polish!, Surprisingly a lot of the metal parts were still ok and only about $200 was spent on chrome (Gold Star-Hackham).

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I also wanted to have a go at my first paint job without using spray cans, so armed with some Jet Black 2 pack, a respirator (a must when using 2 pack), undercoat, (Cost $250 from Paint Supplies-in Lonsdale) It would've been a lot cheaper if I got it right first go! With a gravity spraygun ($50-internet) I gave it a go.

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A good word to use here is Perseverance! After rubbing back and starting again 5 times I have learnt the following:-don't hang all your bits at once in a 1.5 x 3.0 shed, don't paint in 40 degree weather, make sure you have good lighting, don't paint without a water separator on your airline, oh.…and orange peel looks cool!

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I wasn't happy with the style of the bike when I got it and wanted the old school look. The major parts that were changed were… stock Triumph fuel tank to a Sporty tank ($100 from 2 Wheel Dismantlers in Hackham), cobra seat to a single saddle with 2" springs ($35US-US via internet-can't remember the company), flat bars to 19" apes ($49 at K&M-Richmond), sissy bar removal, stock foot controls to forwards ($100-ME!!!)
Fabrication consisted of welding a flat bar bracket to the front down tube for the forwards, bracket welded above the oil tank for the seat springs.

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As the top of the fork tubes were quite pitted but the chrome where the seals ran was ok, I made up a cowl out of 1mm textured aluminium to cover the tubes between top and bottom yokes. I then mounted a couple of rectangular auto spotlights to it for headlights ($30 from Supa Cheap Auto at Noarlunga).
I used the same material for the battery box cover ($0-aluminium sourced from offcuts from a stainless steel factory I know). A couple of cosmetics I did just for fun were a couple of blue neons ($10 from Repco in Noarlunga) fitted under the fuel tank to shine down on the motor and a Triumph centre tank badge mounted to the rear guard below the number plate.
The forward controls were made from an idea I found on the CA website, I got 2 pieces of stainless tube that fitted inside each other and made up collars for the pedals and slugs to slide in the ends where I mounted pegs to match the handgrips and also fitted matching pedal ends. I can supply details to anyone who's interested.

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One problem I had with them was that I used 1/4 inch stainless rod for the linkages, the gear shift was fine, but because the brake pedal pushed the rod there was too much flex in it so I had to change it for 1/2 inch rod.
After it was finished in March 2007 the only adjustments I had to make were to tighten the head stem nut and use lighter fork oil to soften the front end.

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I still need to raise the back of the seat a bit cos if you give the throttle a serious twist you need to hang on tightly or your
bum ends up on the back guard!

I recently acquired a set of springers which have now been installed and here is the final bike...

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Chopit'nrideit... Prof

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