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Messages - Lillianbrooks

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The Classic Biker Bar / Re: 1914 HUMBERETTE "Cyclecar" Valve Timing
« on: September 18, 2020, 09:50:53 AM »
Another shot of Yvette Humberette.

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The Classic Biker Bar / Re: 1914 HUMBERETTE "Cyclecar" Valve Timing
« on: September 18, 2020, 09:48:09 AM »
My radiator's not original but I have a modern core surrounded by a look-alike Humber radiator shell.

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The Classic Biker Bar / Re: 1914 HUMBERETTE "Cyclecar" Valve Timing
« on: September 18, 2020, 09:43:51 AM »
Now you know what I'm talking about when I say it sits between the cylinders - and why I have to add a manifold to fit any other carby - including a Smiths from Morris, etc.  Mine is a water-cooled model.  Unlike U.K. from what I've read, we often start with "wrecks".  Mine had the wheels rotted off before the owner would sell so it lives on 19" m/c rims.

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The Classic Biker Bar / Re: 1914 HUMBERETTE "Cyclecar" Valve Timing
« on: September 16, 2020, 08:56:08 AM »
Thanks Leon, I have previously used at one stage a SMITHS from a Bullnose Morris but of course needed a manifold extension, whereas the Smiths for a Humberette uniquely fits between the cylinders. Am still operating the original piggy back rods and have just had them re-bushed ,etc. Please let me know when you've found a SMITHS that fits between cylinders.










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The Classic Biker Bar / Re: 1914 HUMBERETTE "Cyclecar" Valve Timing
« on: September 15, 2020, 11:35:05 PM »
Thanks Leon, you certainly don't mince word.  Not used, here, to such "direct" advice. you are my first experience with a Forum. Here's a few facts from an old bloke. You're talking to an Australian who's had the Humberette for about 14 years  (and has had genuinely restored veteran and vintage cars. with correct parts, including carburettors, for 50 years), does appreciate his Humberette and certainly would fit a Smiths carburettor if I could find one.  We don't drive cyclecars around villages here but punish the poor little things on 100 km rallies at times, sometimes on inappropriate roads.  There are about 14 Humberette in Australia and none with a spare Smiths carburettor. (I have searched Ebay for 14 years for said carbie. Find me one and I'll fit it!)
Thank you for your advice.  I will leave the timing alone.  The rest of your advice and opinions was unnecessary.

Thanks John for your answer. It's appreciated. The Humberette has separate cams but Leon seems to have given me good advice, in his charming way, to leave it alone - so will do so.

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The Classic Biker Bar / 1914 HUMBERETTE "Cyclecar" Valve Timing
« on: September 15, 2020, 05:27:43 AM »
Hello all, I guess I'm an imposter because my "bike" is in fact a Cyclecar - a 1914 Humberette, 998cc, 84x90, 50 Degree, V-twin.  In an attempt to get more sting out of it, I'm appealing to the experts - YOU, for advice. i believe original timing was Inlet opens TDC, closes 50 past BDC and Exhaust opens 50 before BDC, closes TDC.  It's very like an early J.A.P. motor and from what I've read on your forum, the J.A.P. Inlet opens 16 before TDC, closes 65 after BDC and the Exhaust opens 65 before BDC, closes 25 after TDC - which is a hell of a difference.  Then I look at other British bikes of that era and get more confusing stats.  My dilemma is do I leave it alone or go for the J.A.P. or similar setting - so I'm asking any old blokes on the Forum, what do you think. (I've never found an original SMITHS carburettor and have previously run brass Zeniths.  I'm now about to fit an Amal model 289, my limited brain-power reasoning that if it feeds a BSA 500cc. it should feed my 998cc twin.). ANY SOUND ADVICE WELCOME.

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