Minarelli / Jog / 1E40QMB Scooter Performance : Ignition Timing Advance Modification
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- เผยแพร่เมื่อ 4 ก.ค. 2012
- A video showing how to modify the stock ignition to allow the timing to be adjusted. The video also compares performance with different ignition timing settings.
Mod at your own risk.
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Thanks for watching. - ยานยนต์และพาหนะ
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The pickup is attached to the stator plate, so it's moving relative to the flywheel.
Hi. I have a question. I have and MuZ moskito 50cc 2002 and the stator has 4 pin and 2 lose cables. Any idea why? Now I'm doing engine swap with the jog 90 and it comes with 3 pin 2 lose cables. I know there's 1 that goes battery ground and 1 to the regulator and there's 1 that goes to choke to the regulator and lights. Then 1 that goes to choke and up to the handle bar but it has empty pin with others pins that goes to the starter bottom and kill switch. Any ideas what to do with that last cabl
If you have ported/race silynder you can drill the hole a little bigger and turn it anticlockwice, hvat you do is to mutsh
Hey 90GTVert. I’ve built up my scoot it’s a Minarelli Vertical with a Malossi 70cc “replica” big bore kit (not the MHR, one level below it Aluminum cylinder) . I’m thinking I should adjust my timing by using this method of elongating the stator holes. Are you also running an ignition module that is different from the stock Minarelli one? Do you suggest an aftermarket ignition module or by changing the timing, will the stock module work? Any info on what the curve looks like? Any info is helpful, Thanks!
I'm still using stock CDIs. Here are curves from the stock CDI, a replacement and a cheap performance CDI. www.49ccscoot.com/pics/90ccExperiment/cditiming.jpg
nice and scientific approach. Ones you noticed the performance goes down at 24. You should have tried 16-17-18-19 degrees, just to find the sweet spot.
Theres one thing i dont understand about this adjustment. The spark is triggered by the cdi pickup sensor on the outside of the flywheel, how would adjusting the stator change the timing? wouldnt you need to run no woodruff key and rotate the flywheel on the crank?
Pickup sensor is on flywheel, but actuator (magnet) is on stator. If You rotate stator, you will rotate actuator to. It is not important which type of sensor you are using, you always must have actuator.
hey 49ccscoot when u change the degress do u also make it similar on the screw below
Both have to be able to move the same distance so it can rotate. You can see them both at 0:38
@@49ccscoot ok I see, yeah I don’t think that’s the problem on my bike but I have the same engine and I installed a jog50 cylinder top end and my bike won’t run properly sounds very off and won’t go past 50kmh
It’s all jetted correctly
@@sigadoonie1613 Have you checked compression and squish clearance? If not, you should. If you changed the cylinder and then it started acting up, something related to the cylinder kit or it's installation is most likely the cause.
Question At 0:37 I an little confuse but now I see it on yours there is a tiny hole under starter thought it is a punctured hole is that supposed to be there?
Yeah. You can get an extension through there and get to one of the e-starter bolts easier.
@@49ccscoot ok thank you so its always open ok I was about to cover it with jb weld cuz I thought it was not supposed to be there thanks what a big relief.
How did you measure the degree for ignition timing?what did you use?
With a timing light. I used a degree wheel to setup a timing pointer and mark the flywheel.
Ok.but how did you know the stock timing?
Any chance you could illustrate it?
Some flywheels have a marking to show what base timing would be. Could be on the inside. Yamahas and other name brand scoots may have timing specs in a service manual. 10-15 degrees BTDC is common base timing for these Chinarellis from what I've seen.
This shows how to find TDC with a degree wheel :
th-cam.com/video/q4X03-J7SUQ/w-d-xo.html
Once you know where TDC is, you need to come up with a pointer of some sort and mark the flywheel so the pointer and mark indicate TDC. Then you can setup your timing light (most are just clips to the battery terminals and a clip for the plug wire) and measure timing. Adjustable timing lights make this way easier. You just dial in the timing on the light till the mark and pointer line up. So say it takes 10 degrees of advance dialed into your light to make the mark and pointer align, then your timing is at 10 degrees BTDC.
Did you have to use higher octane fuel for this setup?
I always use premium pump gas, which is 91-93 octane (R+M)/2 here. I would suggest switching to premium if you are going to advance timing.
@@49ccscoot that's what my thought was. Thanks for the awesome content!
Can I message you on IG about my Eton Beamer 1e40qmb?
Sure. 49ccscoot_official