Offbeat Bikes Magazine

Monday Articles - September 2021

Scroll down for latest instalment

Dirt Bike Build Part 105

 Armed with my wiring diagram, a supply of crimp connecters and some cable, the wiring begins in earnest.

 And now it’s starting to look a little better.

Wiring The Dirt Bike Project

 Also gave the carb a clean. Couldn’t remember why I’d left the idle adjuster out. The reason is now clear!

Carb trouble on the dirt bike.

 Shortening the idle adjuster screw means that it now clears the frame but once the air box’s ‘snorkel’ is in place, the adjuster becomes inaccessible.

Carb trouble averted with shorter adjuster screw.

 Fortunately, there is the facility to fit the adjuster to the other side of the carb, with a bit of drilling and tapping (and, of course bunging up the original hole on the other side). But that’s a job for another time.

Alternative idle screw location

 Tank sealer stuff also arrived. This is the Por 15 version from Frost Automotive. There are lots of videos etc. dealing with tank sealing, but basically it’s a case of following the instructions to the letter for best results.

Petrol tank sealing kit.

 The hardest part was trying to dry the tank thoroughly between solutions. I thought a hot, sunny day and a hairdryer would do it quite quickly. Despite my patented hairdryer stand, I was wrong. It took ages. After some experimenting, I eventually found using an air line from the compressor did a much quicker job.

Drying inside of petrol tank.

 The original starter button was a cheap plastic kill switch. I didn’t need much excuse to replace it with this aluminium version. (From Amazon, it was good value for just under £7.)

New starter button.
New starter button fitted.

 I also replaced the temporary exhaust clamp with a much nicer one. It would have looked even better if I’d shortened the bolt and mounted it the other way up!

New exhaust clamp is much better.
Share by: