PLANET ME­CHANIC What are the most com­mon jobs in your work­shop?

Motorcycle News (UK) - - Garage -

Steve Jor­dan, 48, runs Steve Jor­dan Mo­tor­cy­cles, a tun­ing and ser­vic­ing cen­tre in Great Bookham, Sur­rey

“We’ve got a mix of road riders com­ing out of hi­ber­na­tion and rac­ers des­per­ate to get out on track with their new bike. So it’s set-up and en­gine tun­ing at the mo­ment.

“We had a Suzuki SV650 in the other day that looked the part, but the han­dling was ter­ri­ble. Like a lot of own­ers the guy had thrown in sus­pen­sion from a ZX-6R, ZX-10 or GSX-R be­cause it fit­ted. But the spring rates were all to pot. He’d have been bet­ter look­ing at a £400 Nitron shock, new fork springs and em­u­la­tors.

“Re-flash­ing ECUS has been get­ting big­ger and big­ger as mod­ern bikes are run­ning so lean for ride-by emis­sions tests. Late ’90s and early 2000s ECUS are very ba­sic, but on more mod­ern ones we can ad­just ig­ni­tion, fuel and throt­tle plate po­si­tion­ing. Al­though you’ll see a 5-12bhp peak in­crease on a big bike, the real ben­e­fit is in the sec­ond-to-fourth gear range.

“A re­flash will take a good four hours, tak­ing fuel out of some cell blocks and adding it to oth­ers be­fore each dyno run. On road bikes we are look­ing at small and midthrot­tle po­si­tions where you spend most of the time – you’ll only be us­ing 10-20% throt­tle on the mo­tor­way. We re­cently re­flashed a GSX-R1000 K5 with an Akrapovic pipe and it gave 12bhp more in sec­ond and third, mak­ing it nice and pro­gres­sive on the throt­tle.”

‘Re-flash­ing ECUS has been get­ting big­ger

and big­ger’

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