I've been busy with Minty recently and now it's all back up and running, to a point.
Last week was full on trying to get everything done for the LLC Chiltern Hills Challenge, which was the target from back when I bought the scooter earlier in the year.
There were a couple of major gremlins towards the end which challenged me. First off, tightening the rear hub onto the axle just pushed the hub up tight onto the axle as it was heavily scored. We had thought it would be usable but that was not to be. Thankfully, I only live a short ride from Cambridge Lambretta so headed off there for the necessary new axle and hub, only to find on replacing the axle, that it was the wrong longer version that I bought. Back I went to get the correct part.
The second problem was the position of the petrol tap in relation to the new PHBL carb. Trying to fit the tank back into the frame, it became apparent that they both wanted to be in the same place. On investigation, I found that the Spanish (and French) mk1 LD had the tap fitted an inch or so further forward than the Italian version. This was got round by using a horizontal Italian tap but that doesn't allow me to bring the tap up through the top of the frame loop because of the same problem, more work to do there still.
The throttle at the handle bar is an interesting and very different set-up, compared to an S3, with the cable ending in an unusual position inside the throttle part of the handle bar and the throttle tube using a slot that twists around the tube.
Connecting all the electrics was straight forward enough, with some tips and a diagram from Trevor and Pete at CamLam, and after a bit of faffing around on my part due to an inadequate earth because of my totally crap soldering, the engine eventually fired up. Very satisfying!
Everything was back together in time to set off early on Saturday morning for the Chilterns but it was a big gamble, having no time to find out if everything worked as it should. Despite this, I set off but didn't get too far sadly. I know the LD is not renowned for its speed but this was desperately slow and I felt very vulnerable, even in the early morning traffic. Eventually, having a 160 mile round trip without the actual challenge, I decided to turn around and enjoy a relaxing Saturday at home and wait for some pictures of the event to appear on social media. On the way back something slipped in the clutch / clutch cable set-up, which just backed up my decision. There will be other events on other days that I can do.
My next step is to look into the lack of power. Maybe the carb is over-jetted, I think the ignition is set correctly and a GT Booster exhaust should help. Maybe, I'm expecting too much or I just need to improve my power to weight ratio, time will tell.
It's been a massive learning curve and and a very interesting one too, and I am very pleased how the scooter has turned out after a good dollop of elbow grease.