Honda-SOHC

On my original 400/4 I zip tied the box on the top frame tube and just clear of the carb bank as there was just enough room for it to sit between the fuel tank tunnel and the frame tube. I thought I'd had a result until one day when giving the bike a handful it topped out at 110mph🙄, (actually it was about 70!). The CDI box had slowly worked it's way back down the frame just enough to interfere with the top of the carbs at full throttle.
I'm 90% sure the Boyer does use a wasted spark Ash👍

The problem I always have fitting a Boyer on a 400/4 (and other bikes) is where do you put the CDI unit! On one of them I placed it in the tool holder tray which made it a pia when removing the tray because the cable came through it and on another I placed it on the inside of the side panel with velcro.

Hi All.
I am installing the handlebars but cannot find any info regarding the two dots on the clamps. Do these face forward or backwards? Does anyone also know the torque setting on the clamp bolts? Being steel bolts in alloy castings I don't want to overdo it and strip the thread in the top yoke. Memory tells me the front bolts of both clamps must be tightened first, am I correct or is my memory playing tricks!

I would like to think the Mayor of London (and therefore the head of TfL who are responsible for bus lanes) will implement the use of bus lanes for motorcycles if that is what the outcome of the public consultation decides. Unfortunately the Mayor of London does what he and the minority with the loudest voices want not what the majority have requested through a democratic process. The expansion of ULEZ is a perfect example of his thinking. Prior to the expansion of ULEZ TfL posted a public consultation paper asking if the taxpayers and road users of London thought the ULEZ expansion was a good idea. The mayor received something in the region of 14,000 responses to the consultation of which over 10,000 were opposed to the expansion. This was obviously bad news for the Mayor and his cash cow idea so he ignored the majority and implemented the expansion of ULEZ anyway giving people just eight months notice to get rid of their allegedly polluting vehicles and buying something compliant. The values of old cars plummeted overnight whilst the values of compliant vehicles massively increased, if you could find one. Still, every cloud has a silver lining and as if by magic your otherwise dirty polluting vehicle the fumes of which allegedly kill people can become clean if you pay the mayor £12 a day 🙄.
I hope we are allowed to use all the bus lanes in London instead of just a few that a poorly signposted but I think London will be excluded from any legislation on the orders of a dictator Mayor.

Matt Hull the editor of Classic Bike Guide has spent the last year or two restoring a RS100. Every month there's an update and a how to type feature. He got it back on the road but after a few hundred miles he had the death knock and has had to strip it down again. Problem turned out to be a failed main/big end bearing, something he didn't attend to in the first rebuild as he was told these never give problems!
He's made some home made tools along the way such as puller's etc.
I know it's not the R80 but probably transferable information between the two. Well worth a read & subscription 👍.

Looking good Dom. Nice to see something a bit radical 👍

That's all good progress Ash. It may have taken a while to set up but making sure the frame is correct is key, too many people focus on the shiny bits and leave the basics. I always get my frames checked, for the £125 it's piece of mind. My Moto Morini frame was both out of alignment and had a crack in a frame tube just forwards of the rear shock mount. The 400/4 I restored for the wife was twisted by 3deg at the headstock. Thankfully 'Ratty' had a clean bill of health.
The 250RS decals from Piki are first class (as all his decals are). Are you spraying the centre stripe on the tank or has Piki made you a decal? Menno painted mine. To be able to paint is a real skill, I remember painting lessons at college, I still have the panel hanging in my garage that I painted in the lesson when I was 17. I had to sign write 'Vellocette and Classic Bike' on the panel as part of the lesson. I was actually employed as a coach painting apprentice at London Transport's bus overhaul works at Aldenham back in 1978. Within a year I had become a Coach Trimming apprentice at LT's train overhaul works in Acton because it was found I had a really bad allergy to cellulose!