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None Runner

Technical help for Series one, two and three Lambrettas. Models include the Li, Li Special, TV, SX, GP, Serveta and API/SIL models

Re: None Runner

Postby Bilko » Tue Aug 30, 2016 10:54 am

Thanks for the support Jarv & Chris.
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Re: None Runner

Postby Revvers » Wed Aug 31, 2016 3:02 pm

Apologies if I'm hijacking this thread, but I rode my old girl into work today and as I pulled up, the revs died on me and she just stopped. I've got a good spark but she just will not start. I've tried bumping her and putting petrol down the barrel but she ain't having it
Could this be a twisted crank?? Can I test this or does it need to go to a shop?
I had altered my jetting, but have been told this should not affect the bike starting (??)
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Re: None Runner

Postby coaster » Wed Aug 31, 2016 4:55 pm

Revvers wrote:Apologies if I'm hijacking this thread, but I rode my old girl into work today and as I pulled up, the revs died on me and she just stopped. I've got a good spark but she just will not start. I've tried bumping her and putting petrol down the barrel but she ain't having it
Could this be a twisted crank?? Can I test this or does it need to go to a shop?
I had altered my jetting, but have been told this should not affect the bike starting (??)


Did you weaken the mixture? if so I would suspect some sort of piston damage and stuck rings, the compression would be down and probably the plug won't be getting wet (apart from when you tipped petrol in directly).
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Re: None Runner

Postby Revvers » Wed Aug 31, 2016 7:38 pm

Gulp!! Think I was running rich as I'd upjetted. Had to leave her at work. Last resort, eezi start tomorrow then it's the recovery van. This months Scootering shows how to check for a twisted crank, so I'll check that too
Methinks this ain't gonna be a cheap fix...
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Re: None Runner

Postby coaster » Wed Aug 31, 2016 8:40 pm

Revvers wrote:Gulp!! Think I was running rich as I'd upjetted. Had to leave her at work. Last resort, eezi start tomorrow then it's the recovery van. This months Scootering shows how to check for a twisted crank, so I'll check that too
Methinks this ain't gonna be a cheap fix...


Can't believe the crank would twist unless you'd been honing about doing wheelies or clumsily using the gears for braking :? Even then, if it was far enough out to stop the engine running, the flywheel would probably be rubbing on the mag housing. What doe the compression feel like? is the plug getting wet? any squeeking noises coming from the head area when you kick it?
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Re: None Runner

Postby Revvers » Wed Aug 31, 2016 9:43 pm

The plug isn't getting wet, no. And I put some petrol down the barrel but it still wouldn't start. About a year a go, I was having starting problems and a mechanic said my crank may be twisted and he said he adjusted the timing to compensate. It's been fine since and I've done over 1000 miles. Just seems weird that it's happened after I have jetted my carb, yet I've been told this shouldn't affect starting. There's petrol in the bowl and it started first kick this morning. I'm at a big of a loss tbh
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Re: None Runner

Postby Revvers » Wed Aug 31, 2016 9:46 pm

Compression seems good and I e not heard anything out of the ordinary. Will check flywheel movement tomorrow
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Re: None Runner

Postby bazza3004 » Fri Sep 02, 2016 1:52 am

Did you have an luck getting your scoot started revvers
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Re: None Runner

Postby Revvers » Fri Sep 02, 2016 10:40 am

No mate. Marooned at work, so had to get Rescue out. Bloke couldn't solve it, so he took it to the shop for me. Fingers crossed for a cheapish resolution.
I'll post on here when it's solved, to help anyone else. Thanks for all the suggestions.
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Re: None Runner

Postby CHRIS in MARGATE » Fri Sep 02, 2016 10:47 am

You've had the carb apart. First place to start.
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Re: None Runner

Postby Bilko » Mon Sep 05, 2016 9:31 am

Finally.....

After changing the loom. It lives!
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Re: None Runner

Postby Toddy » Mon Sep 05, 2016 12:15 pm

Bilko wrote:Finally.....

After changing the loom. It lives!


Happy day :D any obvious issues with the loom ?
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Re: None Runner

Postby Donnie » Mon Sep 05, 2016 1:18 pm

Bilko wrote:Finally.....

After changing the loom. It lives!


Good man!!
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Re: None Runner

Postby Marty ULC » Mon Sep 05, 2016 1:29 pm

Most excellent.
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Re: None Runner

Postby kennystag » Mon Sep 05, 2016 2:34 pm

You will be feeling good now.
Good luck
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:)
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Re: None Runner

Postby coaster » Mon Sep 05, 2016 6:50 pm

Well done mate, after all that's been done it should never break down ever again ;)
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Re: None Runner

Postby piskie » Tue Sep 06, 2016 4:59 pm

Bilko nice to see your up and running over your way next tuesday you still got the same phone no ????
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Re: None Runner

Postby Bilko » Tue Sep 06, 2016 7:57 pm

Thanks for all thhe support, really appreciate it. It can be a bit shitty when you're lost for a solution.

Had some great help from a mate who called round and did some of the electrickery. I'm firing it up regular in the kitchen to keep the smell of 2 stroke in the house. Lovely!

Piskie, no, mate, I'll send you my number.
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Re: None Runner

Postby Revvers » Fri Sep 09, 2016 1:23 pm

Turned out, I've holed me piston... Bollocks
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Re: None Runner

Postby JETEX » Sat Sep 10, 2016 12:14 am

If the plug us wet it's getting fuel ( perhaps too much ? ) so engine is flooding OR there is an issue with your spark. See all of the suggestions for that above. Have you got a really good frame to engine earth ?.
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