Hi folks. My 1975 T140V street flat-tracker project is complete but it just won't start (kickstarter only). I've done everything I can to troubleshoot it and I'm sure it's the carbs (which I've blasted, U/S cleaned, etc). I'd like to borrow/hire some starter rollers so I can churn it over and try to understand what isn't working properly. Does anyone have any - preferably near Bristol...? Here's a teaser pic anyway
That looks gorgeous. I’m well jell already. Here you go no need for rollers with this method. :/ or or
Thanks @DucatiScud - my fallback will be my Hyper on its paddock stand as the driving wheel.... Just need to get a sensible assistant My vinyl-cutting mate is here tomorrow with the finishing touches - the white vinyl numbers for the number boards Meanwhile, here's another teaser...
Just a couple - I need to get it out into the sun and I can't get far enough away from it in my messy garage... The white vinyl my mate used for the numbers is a bit 'strong' - dunno...
Unfortunately vinyl tend to be Whiter than paint White. There is a supplier in Lichfield that does a more Ivory looking White or at least did do when I had a signage company. I’ll take a look see later to see if they still stock it.
Hey Keith...haven't got any start rollers but thanks again so much for helping me....that looks bloody amazing! If you need another sets of hands let me know...
I've got nowhere with finding some rollers, so I've bitten the bullet and ordered new (same model Amal 900) carbs! The only diagnosis I could come up with is completely blocked fuel galleries for the pilot fuel supplies (confirmed by compressed air going nowhere!). I've used every trick in the book to clean them out with no success. Fingers crossed, as it's a big expense that I really don't want...
The vinyl suppliers have discontinued their off White unfortunately. Hardcore if even ultrasonic doesn’t shift whatever it is.
Thanks for the vinyl update I just couldn't clear the pilot system and they're almost 50 yes old! My winter fuel payment from the Government will match the bill
"let sleeping dogs lie" is often the best approach if you suspect silt in old carburretor fuel circuit galleries, in particular, the idle/pilot circuit can be the gallery that ultimately stops the bike (or car) from running after using the ultrasonic approach. Although dunking a carburretor body in such a bath might yield some good results when you look at the sediment in the bottom, in reality it's a real hit and miss affair. The only way to guarantee that galleries are completely clear is to remove all sealing slugs before carefully cleaning and rodding if necessary, and even this can take hours to be successful.
Had a guy bring an immaculate 350lc in for poor running. He insisted the carbs had been ultrasonic cleaned several times after being aqua blasted. When I removed the drilling plugs and has a good rake around, all the drillings were blocked. Probably the same with old fuel as @Chris has said above
I should have checked this sooner (resorted to a cheap Chinese Amazon compression gauge)... Low compression on one cylinder The new carbs are now delivering fuel where the old ones weren't, so they weren't a waste of money... Oh well, it gives me something to do and, being all 'new', isn't the messy chore it could have been...
Running beautifully now, sounding perfect I'd messed up the exhaust valve timing (brainfart but no piston collisions!). The new pair of carbs certainly help the idle and crisp uptake. New registration with an age-appropriate plate are now, hopefully, only a few weeks away...
You should be able to sell them on if you want , since you've now discovered that they weren't the root cause of the problem after all . Re. Ultrasonic cleaning .... it can certainly blast off years-old baked-on crud , but it doesn't do much for moving it out ..... especially in the sort of narrow passage-ways inside a carb Anyway ..... I'm loving your project As a teenager I had my heart set on a T140V , but it was way beyond my budget .....
I’m even more well jell now it’s finished and running. Looks ace as they say back in the 70’s. Like that you’ve put flat track tyres on too. I’m sure that you could race that in the upcoming flat track Summer season. If you’re a little rusty you could have a day at Pete Boasts flat track school near Lincoln.
I didn't want to spend 2 x price (US postage cost) for the real-deal Dunlop K180 tyres, so I looked around and chose the Metzler Tourance as they do a (rare) 18" rear to match the 19" front. This bike is all for looks as I dreamed about in the mid 70s
I'm glad now that I went for the new (Amal Premier) carbs as the idle and response is so crisp. I keep telling myself that, if it ran at all, it'd be running badly as they were so blocked and worn. Only a teeny bit of man maths there
