Author Topic: New variator aaaannddd issues arise....  (Read 10991 times)

Kenho21

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Re: New variator aaaannddd issues arise....
« Reply #15 on: July 13, 2012, 01:32:07 PM »
Could be valves but I can't really be sure till I do a couple plug chops.

If that's the case will adjusting them to .03 or so do the trick?
2009 Kymco Agility 50- 72cc Airsal kit, Uni Free-Flow Air Filter, Main Jet 120, 1500 Contra Spring, 6g Rollers, Malossi Multivar Variator, NCY Exhaust, NCY 80cc Camshaft, Cut CDI, Smooth Boss Drive, MRP Ignition Coil

zombie

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Re: New variator aaaannddd issues arise....
« Reply #16 on: July 13, 2012, 07:02:27 PM »
I have been adjusting the valves hot. I ride about 1/2hr to get it hot, and turn the adjusters by hand till the valve just touches the adjuster, and lock it down. To check it's not too tight I move the rocker back, and forth, It should slide with NO resistance, and have NO play up/down. When I first installed the 50mm kit I was adjusting once a week. Now doing it hot I have set them once, and they are staying quite.
This method is working for me.
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Kenho21

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Re: New variator aaaannddd issues arise....
« Reply #17 on: July 13, 2012, 09:39:58 PM »
I'm beginning to think it's an air leak somewhere, I'm getting almost no difference with the issue when upsetting to a 120, the largest jet I have. I'm gonna look it over real good tomorrow after work and get to the bottom of this, it's killin me!
2009 Kymco Agility 50- 72cc Airsal kit, Uni Free-Flow Air Filter, Main Jet 120, 1500 Contra Spring, 6g Rollers, Malossi Multivar Variator, NCY Exhaust, NCY 80cc Camshaft, Cut CDI, Smooth Boss Drive, MRP Ignition Coil

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Re: New variator aaaannddd issues arise....
« Reply #18 on: July 13, 2012, 09:45:25 PM »
Im sure you can rig up a pressure tester.    A bike pump works fine.
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baddi

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Re: New variator aaaannddd issues arise....
« Reply #19 on: July 14, 2012, 01:02:01 AM »
Are the CDI the usual standart CDI with the cut? :)
Because the cut doesnt remove the restriction but moves it to 9000 rpm, which means that at this point, every second charge of fuel will not be ignited, but be thrown directly to the exhaust, where it burns and can be heard. :p
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wordslinger

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Re: New variator aaaannddd issues arise....
« Reply #20 on: July 14, 2012, 02:12:53 AM »
which means that at this point, every second charge of fuel will not be ignited, but be thrown directly to the exhaust, where it burns and can be heard. :p


..bullsh**...

..ssso with this logic, you should NOT cut that cdi?...


..guess i'm just not following you bro...

..every mod (action) necessitates a (reaction) mod..

baddi

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Re: New variator aaaannddd issues arise....
« Reply #21 on: July 14, 2012, 02:57:36 AM »
which means that at this point, every second charge of fuel will not be ignited, but be thrown directly to the exhaust, where it burns and can be heard. :p


..bullsh**...

..ssso with this logic, you should NOT cut that cdi?...


..guess i'm just not following you bro...



Sure, you should cut the CDI. If the CDI is uncut, it will just do this at 7000 or 7500 (cant remember where it is restricted to). Cutting the CDI moves the restriction from beneath the top of the effectband to a "safe maximum rpm" (The red line on gear vehicles). This is because that if the rpm rises too high, the valves can start floating because of the air pressing onto the open valve at higher speed, and the piston can end hitting the valve and ruining the whole engine. So when compleately removing the restriction, by installing a CDI with no red line, you should either let a little go of the throttle when at full gearing or install stronger valve springs. That is, if you've got enough power to hit the rpm, where the valves start floating after installing an unrestricted CDI. ;)
First Kymco agility 50 (2008) 11.000+ km (dead)
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wordslinger

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Re: New variator aaaannddd issues arise....
« Reply #22 on: July 14, 2012, 03:00:06 AM »
..or tune the cvt to control all that...


..i'm just sayin'...
..every mod (action) necessitates a (reaction) mod..

baddi

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Re: New variator aaaannddd issues arise....
« Reply #23 on: July 14, 2012, 03:14:30 AM »
..or tune the cvt to control all that...


..i'm just sayin'...

When the CVT is fully geared out, the RPM will rise to the restricted maximum or until the power cant drag the RPM further out. So if he keeps his throttle turned after hitting max gearing in the CVT, his RPM will rise.
For example: during accelleration, my rpm are stable at around 7200 because of worn down 6,2g rollers but it will still hit the restriction at 9000 rpm, when the CVT is fully geared. The sound of fuel getting dumped directly into the exhaust is even more obvious with my Leo Vince, as it havent got the silencing zig-zags as the standart has. ;)

I will make a video soon if i remember it, but i fear that the cellphone microphone won't catch the sound properly. :p

This is how i've learned to read a popping sound in the exhaust: "It's not healthy for the engine, but it is a sign that the maximum has been reached and it is time to let go of the throttle, as it won't go any faster."
It can also be read as: "It has got the power to drag it all the way up here, so it problably has the power to drag a higher gearing, and then it will possibly find a decent level gearing in the CVT, at the point that it has the power to drag it up to."

Both these ways will be better for the engine than hitting the restriction or removing it completly :D
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wordslinger

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Re: New variator aaaannddd issues arise....
« Reply #24 on: July 14, 2012, 03:28:48 AM »
So if he keeps his throttle turned after hitting max gearing in the CVT, his RPM will rise

..true...then more cvt tuning is needed...so that cant happen...
..every mod (action) necessitates a (reaction) mod..

baddi

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Re: New variator aaaannddd issues arise....
« Reply #25 on: July 14, 2012, 03:44:57 AM »
So if he keeps his throttle turned after hitting max gearing in the CVT, his RPM will rise

..true...then more cvt tuning is needed...so that cant happen...

How would you tune a CVT, so his rpm wouldn't rise after hitting max gearing?  :o
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blue

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Re: New variator aaaannddd issues arise....
« Reply #26 on: July 14, 2012, 07:18:32 PM »
Man all you guys with those big jets you must be burning up a lot of gas.I notice a dif. with just a 85 jet.

baddi

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Re: New variator aaaannddd issues arise....
« Reply #27 on: July 14, 2012, 07:35:50 PM »
Man all you guys with those big jets you must be burning up a lot of gas.I notice a dif. with just a 85 jet.

Same here, lol.  ;D
Back in the days, when i experimented with a cone filter, i was at #84, which had the same power as #86, but if i went any higher, it would stall when i gave throttle. :p
I´m not sure if it was my imagination or if the accelleration really did increase, but i still went over 50 km/l with the cone filter back then. :p
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streido

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Re: New variator aaaannddd issues arise....
« Reply #28 on: July 14, 2012, 09:44:37 PM »
I finally got my cone filter dialed in today i think, still need to do a plug chop to verify but im sure its almost perfect. After months of trialand error i think the #92 main jet i put in is just right.
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baddi

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Re: New variator aaaannddd issues arise....
« Reply #29 on: July 14, 2012, 11:41:49 PM »
I finally got my cone filter dialed in today i think, still need to do a plug chop to verify but im sure its almost perfect. After months of trialand error i think the #92 main jet i put in is just right.

Glad to hear that. :D Hope for you, that its the right one ;)
First Kymco agility 50 (2008) 11.000+ km (dead)
Second kymco agility 50 (2010) 20.000+ km. Project Fuel Injection. Stolen.
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