Ignition Advancer - What does it _ACTUALLY_ do.

Have picked up very cheaply a brand spankers (as in still in the blister)
ignition advancer for my ZX10 (the old one, ie, 1990 model, not the shiny
new one that I wish it was).

What I wanted to know, is has anyone had any experience with aftermarket
advancers? I assume they give you a bit more top-end, at the expense of a
little bottom end and mid-range. (I also know that they save a bit of
weight, but come on, it's a ZX10.)

 

An ignition advancer allows you to advance your ignition timing, if you dont get
how that could be a benefit and how to set it up maybe you shouldn't be fitting
one ?

JL
(General rule of thumb would be that it's probably not much point unless you are
making other modifications)

 

Yep. This is not a bolt-on-go-faster component by a long shot.
I mean, you could buy it if you have a dire need to own it, but
unmodified the bike will almost certainly run best at +0°.

-----sharks

 

Ok, 'cause I was bored yesterday at work, I did some research of my own and
this is what I found out.....

Due to emissions & noise control regs etc, stock bikes almost always are
tuned not to the optimal level (not just timing, but exhausts, jets, etc
etc).

This particular ignition advancer will advance the ignition 5 degrees.

This is supposed to (based on manufacturers claims, and the large amounts of
personal accounts I found) give better idling, aid in removing the flat spot
at noise-test revs. At the top end, you actually LOSE a bit of power if you
don't modify anything else.

Apparently, if used in combination with free-er pipes, filter, and
appropriate rejetting, they will aid in increased power (to varying degrees)
and smoother running right across the rev range.

Ok, so seeing as at the moment I'm considering fitting just the advancer (to
start with at least), and seeing as it's a 10 minute job with a total of $10
in parts (1 gasket) required for the swap, I'm going to give it a go, and
see how it does. If it's no good, I've lost less than $50. If it helps get
rid of the 3-4k flat spot, I'll be very happy.

 

You'll will probly need to go up at least one size in main jets or it
will run crap in the higher rev range...

Dave
TrakDaze - http://groups.msn.com/TrakDaze
KSRC - http://autos.groups.yahoo.com/group/KSRC

 

Yep. (See other post about rejetting.)

Thanks.

 

Watch (or listen) out for pinging!
S.

 

Heheh if it's no good you've lost whatever it costs for new pistons
and a rebuild (plus remedying whatever the bits of piston did to your
bottom end)

If you really must, then crank it forward a degree at a time, test
ride it gently and then more agressively and listen for pinging.

I'd be surprised if there's a lot of advantage on an otherwise stock
bike to advance the ignition, but what the hell would I know <shrug>
ít's your engine, have fun.

JL