GPZ500S Ignition Advancer?

[St0rmer66]

Anyone fitted one of these to a GPZ500S? FactoryPro do a 5degree ignition advancer and I'm curious about what affect it has on this bike in particular. I know sagalout has one on his ZX9R (but a 4 degree one) and it has increased the low RPM power substantially.
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:: Honda XR 125 L ('53) => Kawasaki GPZ 500S ('02) => Suzuki SV650S ('00) => Aprilia RSV-R ('51) ::

[stinkwheel]

If you do, let me know how it went.
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“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[tsmith]

if you're after a bit more low down power on the GPZ, check out

https://www.ex-500.com/index.php/topic,124.msg623.html
and
https://www.stevemorley.com/ex500/airbox/

[stinkwheel]

I'd worry about that mod fucking up the airbox pressure waves and killing the top-end 'woosh' which is what makes them a fun bike to ride.
____________________
“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[hmmmnz]

i did an advance on my gs500 ?(i know not the same bikes)
and i found it gave me a bit more power up top, but took power from down low.
to me it seemed like a bit of a play off, and ended up going back to original timing.
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the humans are dead
I kick arse for the lord
Wiring Diagrams BIDNIP it bitches

[Ariel Badger]

Advancing the spark at low revs is detrimental to power (and big ends) but at very high revs will make a difference although it may shorten engine life.
Modern bikes have auto advance retard (My Ariels are manual) If you are going to use the bike on the track I can see a reason for doing so but for general use no.
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Bikers make great organ donors, get 115 on your licence today.