Jap cbrf4i

[Wonky]

Hi all, anyone know what's involved in derestricting a jap import cbr600 f4i. Accelerates fine but is speed restricted to 180.

[ellipsis]

...where are you racing it...

[Wonky]

Not racing, just trying to keep the Harleys away

[mossy1200]

My bikes are restricted to 100.

[spanner spinner]

cheapest and easiest way is to buy buy a speedohealer link here https://www.healtech-electronics.com/products/sh/ you can set these to show half speed which will fool the ecu and defeat the cut out. easy to fit and reversible, the loom for your bike will plug straight in to the factory wiring loom and plugs. I have fitted heaps of these to do this exact job.

[Wonky]

Thanks, any other way so I don't have to halve Speedo?

[jafagsx250]

I know that a lot of older Subaru cars have a bolt screwed into the back of the speedometer which when you remove it removed speed cut. There's bound to be a forum post about it somewhere online.

Sent from my GT-I9506 using Tapatalk

[spanner spinner]

I know that a lot of older Subaru cars have a bolt screwed into the back of the speedometer which when you remove it removed speed cut. There's bound to be a forum post about it somewhere online.

Sent from my GT-I9506 using Tapatalk

speed limiter is built into the ECU, ecu pulse drives the instruments. The only other option is a NZ ECU and wiring loom and they are not a straight swap in as several of the connectors are different. then there is the issue of the HISS system swapping and reprogramming keys.

[jafagsx250]

speed limiter is built into the ECU, ecu pulse drives the instruments. The only other option is a NZ ECU and wiring loom and they are not a straight swap in as several of the connectors are different. then there is the issue of the HISS system swapping and reprogramming keys.

That's a bummer. Would a power commander have speed cut? Good excuse to get a few more hp.

[Wonky]

Ordered the Speedo healer today. $145 seems the easiest fix. Thanks for the help.