ignition advancer mod

[TANNER]

has anyone reported how this affects higher rpm performance and things like mpg? just curious, i could really see this mod making the bike a lot more fun in town..

[ben2go]

No effects on mpg and throttle response is better.Pulls a little harder from lower in the rpm range all the way up to top end.I also did some other mods to go with it.

[mojonixon]

I dont know why but I was always under the impression this mod was for the older E models, am I mistaken? I have a 07 F model and if this would improve bottem end I will buy one and send it out to you!

[dgyver]

Bob cannot mod the 04+ rotors. They are a different design.

[Advancedmobile]

On the 04+ ignition systems, the CDI is configured to adjust the timing accordingly to your throttle position relayed back to the system therefore they have basically maximized the power output through the band, if a plate is used as with the gs500e you can still advance them the same way and the computer will still overadjust and modify the timing curve.

I specialize in engine electronics by trade.

[mojonixon]

Ok I am not really good at electronics, but I think I read if I do the mod myself using the plate method(like is shown in the mods section) I would effectively be tricking the computer and feel a gain in bottom end?

[yamahonkawazuki]

At least here in CA (and probably US in general) there are no emissions testing.

if it is required, run some alcohol in with teh fuel. leans bikes waaay out. passed emissions with a failing vehicle in az this way

[thirdman]

No effects on mpg and throttle response is better.Pulls a little harder from lower in the rpm range all the way up to top end.I also did some other mods to go with it.

I know I am late to the discussion, but Ihave a Broussard Advancer and it behave JUST like ben2go said.

Thanks again, Bob!!!   

[philly0128]

I'm waiting to hear back from bob, but can this be done w/ a 2006 GS? also is this what i'm suppose to send him?

[thirdman]

Bob cannot mod the 04+ rotors. They are a different design.

[bucks1605]

I was planning on sending Bob my rotor this week, but I forgot it at home when I went back to school.  So I'll have to wait another week.

[ben2go]

I'm waiting to hear back from bob, but can this be done w/ a 2006 GS? also is this what i'm suppose to send him?

That pic is the ignition rotor but it can't be modified on the 04+ engines.Some say the ignition can be fooled into advancing the timing by modifying the pick up plate.

http://gstwin.com/diy_timing_advance.htm

[Kurlon]

Bob, any thoughts on advancing the timing further?  I'm forced to run 93 octane for racing (spec fuel rule) so I bet I've got some headroom...

[bucks1605]

Bob, any thoughts on advancing the timing further?  I'm forced to run 93 octane for racing (spec fuel rule) so I bet I've got some headroom...

You may want to send him an email or a pm so he knows you have a question. I don't think he gets on here that often.

[Bob Broussard]

I still check in occasionally

The original V&H advancers bumped the timing to 17 degrees btdc.
Since they know what they're doing, I wouldn't go beyond that more than 1 or 2 degrees.
I run 92 octane in my street GS even with high comp pistons and a milled head without any problems.
My racebike uses VP ultimate 4 (don't even know the octane rating)
It's oxygenated, so it makes more power.
I tried a 12 degree rotor once, but really lost the lowend grunt out of corners.
Never had an issue with the 17 degree timing

[bucks1605]

  Just kidding!

Did you get my email about me forgetting my rotor at home?

[Bob Broussard]

Got it 

[bucks1605]

Got it 

Just wanted to make sure, so you wouldn't be expecting my rotor and it not show up.

[Kurlon]

Guess I need to get my rotor out then... going to need a bigger impact gun.

[Kurlon]

Actually, anyone got a rotor kicking loose I could buy off ya to send to Bob for modification?