Classic Motorcycle Mechanics

Jumpin’ Jack Flash!

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Ihave tested quite a number of jump packs, but this is the first to grace the pages of this fine organ, because prior to this example, not one has been an acceptable alternativ­e to my old and trusted Mk.1 Ferrand jump pack.

The eagle-eyed amongst you will see that it is simply the battery that refused to start my old Jeep many, many years ago, but seems more than good enough to start a recalcitra­nt motorcycle and even the odd car on occasion. I am truly astonished by how long it has carried on working. It’s only real drawback is the not inconsider­able weight. It’s on its second set of leads as the insulation broke down on the first set, so I cut a set of jump leads in half and crimped ring terminals on the cut ends! The bikes most likely to have flat batteries are those that live in the lock-ups I rent with no power, and at my age carrying a great big 4x4 battery down the road to them is no joke. She Who Must Be Obeyed’s Street Triple used to live down there and having a battery that wasn’t much bigger than a torch battery which had to power an alarm/immobilise­r, it would reduce the voltage to the square root of feck all in a matter of weeks. The Mk.1 Ferrand jump pack (final pic) has never failed, but resulted in an aching arm and shoulder transporti­ng it to the bike. I tried numerous small jump packs that claimed to start V8s and all manner of large vehicles, but with a properly flat battery couldn’t start a 675cc triple. Apparently if they’re totally flat they don’t work.

I was chatting to Andy at Laser Tools one day and told him how unimpresse­d I had been with all these tiny jump packs with their giant claims, and he said: “Try mine – it’s been in my van for many years and has started many large vehicles.” He is aware of my

deeply-ingrained cynicism, so doesn’t bother trying to sell me anything, but lent me his jump pack to try. Last year I went to register my Kawasaki Z1300’s historic vehicle status and despite it conforming to DVLA’S published rules, they said I had to wait until the following year and given the tax was well north of £100 I told them to shove it where the sun didn’t shine and duly covered up my big six for a year, so I wouldn’t be tempted to either break the law or give money to the undeservin­g government!

The downside of this was that by the time I remembered it had a battery on it, there was not enough power left to illuminate the neutral light. This seemed like a good challenge for Andy’s jump pack. Well, finally, a jump pack that actually does what it claims it will do; the slumbering beast roared into life despite the seriously-elderly go-juice.

It does more: it has an accessory outlet of the sort that used to contain fag lighters in old cars that we recall from our youth. I went to collect a very dead bike the other day and the tyres were as flat as a proverbial pancake. The guy had a car tyre pumper upper device that plugged into a car, but a car couldn’t be got close enough, and I remembered the jump pack in my van and thought I would try it, and, hey presto, inflated tyres. ‘Hey presto’ is a bit of an exaggerati­on; those little electric pumps take forever, but it did work. The other trick up this product’s sleeve is a pair of USB outlets that will charge your phone, which the car and van I have won’t unless the engine is running, and given the price of diesel… So what’s the snag? In all honesty the price. Te cheapest I have seen it is around £200 including VAT, but for that you get a seriously good, profession­al tool that can dig you out the doo-doo. Given my experience with both the AA and RAC, when you’re into your fourth hour at the side of the road, all of a sudden a couple of hundred quid doesn’t seem so bad. For more: www.lasertools.co. uk/product/6994/mini-jump-start-power-pack

 ?? ?? ABOVE: This jump pack started my Z1300.
ABOVE: This jump pack started my Z1300.
 ?? BELOW: The minimighty jump pack. WORDS AND PICS: RALPH FERRAND ??
BELOW: The minimighty jump pack. WORDS AND PICS: RALPH FERRAND
 ?? ?? ABOVE: Charging up the jump pack.
ABOVE: Charging up the jump pack.
 ?? ?? BELOW LEFT: Phone battery flat – not a problem.
BELOW LEFT: Phone battery flat – not a problem.
 ?? ?? BELOW RIGHT: The Mk.1 Ferrand jump pack – works well, but is sodding heavy and bulky!
BELOW RIGHT: The Mk.1 Ferrand jump pack – works well, but is sodding heavy and bulky!

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