SuzukiSavage.com - Print Page

SuzukiSavage.com
/cgi-bin/YaBB.pl
General Category >> Rubber Side Down! >> ignition
/cgi-bin/YaBB.pl?num=1264812094

Message started by pitbullcustoms on 01/29/10 at 16:41:34

Title: ignition
Post by pitbullcustoms on 01/29/10 at 16:41:34

i was wondering if there is and advantage to being able to advance the timing on the savage or not and if there is how exactly would i do that ? any help would be appreciated ..... finally got some time to trying to upgrading the bike!!!!!!

Title: Re: ignition
Post by thumperclone on 01/29/10 at 18:11:57

if there is a way to move the pick up coil some timing advance can be had..

Title: Re: ignition
Post by verslagen1 on 01/29/10 at 18:54:28

Your going to have figure out how the CDI advances the timing.
Leave the timing port open, and I'd leave the oil filler port open too so not as much oil gets blown out... that hole. Maybe leave the oil level low.
attach a timing light and have fun.

It's been said that you can slot the mounting bracket for the sensor and kick it up a notch.

Title: Re: ignition
Post by pitbullcustoms on 01/30/10 at 15:43:49

ok so what sensor are we talking about here? and how would moving the coil advance your timing?

Title: Re: ignition
Post by verslagen1 on 01/30/10 at 16:02:40

TDC sensor is under the stator cover.

Title: Re: ignition
Post by dasch on 01/31/10 at 04:37:37

...and if you move the sensor a degree or two, that fools the CDI that the time has come to fire. In actuality - it will fire a degree or two in advance... cool trick. But what's the actual gain?? With stock camshaft and all... probably little to none.

Title: Re: ignition
Post by trublu on 01/31/10 at 05:25:18

5C45584E5940404F595F5843415F2C0 wrote:

ok so what sensor are we talking about here? and how would moving the coil advance your timing?

Their talking about the pickup coil, not the coil..err..coil.

Its got several different names, ignitor, pickup coil,TDC sensor,etc. Its what picks up the signal ( its a magnet actually) from the crank as it turns to tell when its time to fire. Their all the same thing. ;) It basically takes the place of the points on the old bikes. :)

Some bikes ARE adjustable.(My 750F Honda is one) and it lets you fiddle with the timing either slightly advancing or retarding to get the best performance and/or drivability.

Personally I just set mine at factory specs. Thats good enough for me and provides good starting, smooth running and decent power, which.....amazingly enough.....is exactly what factory specs are suppossed to do. Give a happy medium of all 3 for the masses. ;)

Title: Re: ignition
Post by pitbullcustoms on 02/01/10 at 15:22:07

sweet thanks guys thanks ill be of to the shop sometime this week to spend a few hours on her getting her all tune up and new exhaust,porting the head rejetting the carb, advancing the timing and maybe hardtailing the rear and lowering the front a tad bit but we will see what happens depending on how eveything goes will depend on how much gets done!!! thanks agian

Title: Re: ignition
Post by Ed L. on 02/01/10 at 16:57:02

I think I'm the only one who has tried the slot the bolt hole on the sensor trick so far. I had to replace the stator cover anyway so while I was in there it seemed like a good idea to give it a shot. I slotted both bolt holes and checked the static advance using a degree wheel. I was able to get about three degrees static advance but had to change the hold down bolts over to cap screws to get a little more clearance when tightening them down. Performance wise it is an easy way to gain about 300-400 rpm at the top end. Before the advance the engine would loose it's power at around 5000 rpm. I'm not saying that the engine won't rev over 5000 rpm, it just would start loosing it's balls. Now it will run up to almost 5500 rpm before dropping off on it's power. I think that it was worth the effort and noticed the improvement. I would of gone with more advance but didn't have any more space to move the sensor. Of course without a dyno test before and after the mod it is a seat of my pants improvement. But still you got to remember that the engine has been so detuned that any spark advance will help the overall performance.

Title: Re: ignition
Post by Truckinduc on 02/01/10 at 17:30:22

Im doing some heavy modification to my stator cover and i plan on slotting my pick up while im in there. may even make a different plate for more adjustment. Ive been looking at it thinking.

Title: Re: ignition
Post by Ed L. on 02/01/10 at 18:34:39

I was thinking a plate would work if you ground down the mounting pillars on the side cover. The sensor needs to be centered on the flywheel and the thickness of the plate might move it past the trigger area. I was thinking about grinding down the mounting pillars by the thickness of the plate to keep the sensor centered.

Title: Re: ignition
Post by pitbullcustoms on 02/02/10 at 17:46:39

ok so in my move i have lost my repair manual can someone explain to me where this part is that needs to be slotted out and moved on way or the other.. thanks

Title: Re: ignition
Post by Ed L. on 02/03/10 at 17:50:51

The sensor is found attached to the inside of the left side cover that goes over the flywheel. To get at it you need to pull the cover and unscrew the two M6 bolts that mount it. I slotted the bolt holes with a dremel and moved the sensor counterclockways. Think about the rotation of the engine and move the sensor against the direction of rotation, not with the rotation. The sensor is magnetic and will get some metal filings on it which needs to be cleaned off. You will need to replace the side cover gasket cause it will tear. Luck with it, it was a bit of a PIA to do.

Title: Re: ignition
Post by Truckinduc on 02/13/10 at 20:12:52

worked on my adjustable timing pickup. the insulation on the wires was old and hard and cracked and came off instantly. not sure if i can fix it or not. any ideas or suggestions?

Title: Re: ignition
Post by thumperclone on 02/13/10 at 21:54:36

7B5D5A4C4446414B5A4C2F0 wrote:

worked on my adjustable timing pickup. the insulation on the wires was old and hard and cracked and came off instantly. not sure if i can fix it or not. any ideas or suggestions?

brush on (in a can from the hdwre store)electrical tape or replace the leads..?
had that prob w/ a 70 type 3 VW, injector leads were too close to the exhaust manifold worked till i installed a weber dual stage carb...

Title: Re: ignition
Post by Routy on 02/14/10 at 08:50:31

If the OEM timing specs are retarded to pass EPS specs etc, then advancing could sure be worthwhile. But I would be very careful about too much advance, possibly burning a piston,.....but really only if you like doing full throttle up a long grade on a hot day.

I wonder if you can hear the thumper "ping" if advanced too much ?

Title: Re: ignition
Post by justin_o_guy2 on 02/15/10 at 06:36:03

When it was still "new", if it wasnt wound up pretty good it would lug & ping a bit, but the ping was more of a, heck, I dunno, but I didnt like it, it was a clacking sound. Been a few years since Ive heard it, but it was unnerving & I learned to avoid it after just a few of those events. Once the engine fully freed up it stopped that.