MOPED ARMY

Backfire then bog could be a fuel supply problem...gas cap vented...chinese points have been known to act like a rev limiter...good luck

try a new spark plug too. What gap is the points & spark plug set at?

If the points were fine before you switched to the 19, I'm going to say they're still good. Highly coincedental that they would go bad at the exact same time you change your intake/carb setup. I would look into the variables you just changed.

yes befor the carb and intake was put on it was doing this.... ohh well this is just a reason to tear the bike down and re-paint and what not while waiting to buy some new parts(cdi, clutch, and a couple cables)

points are amazing. just set them up right! learn to time and check them frequently. clean wiring and solid grounds...

nothing beats a set of healthy good condition stock points.

In a rain storm your mostly going to be .. shut down..

cdi=ftw

http://www.mopedarmy.com/forums/discuss/7/161082/156097/

yep what he said ^^^^

cdi is an expensive cop-out if your installing it to solve issues with ur points (that might not even be the points at all), learn how ur bike works and how to fix points systems then go cdi if u desire.

In my experience points have performed just as well if not better sometimes then other ppl with cdi. Also if ur having probs with points they can be easily fixed, if ur having probs with cdi the bikes stops running and u got to buy a new one.

tuning with cdi can also be misleading since its such a strong spark often times u can power thru jetting that too rich w/o fouling plugs and infact be fooling urself into propper jetting and in turn get less performance.

IMO, cdi for optimizing a well tuned setup not for solving an inability to troubleshoot points

What I describe as "floating" is a very slight hesitaton, never any backfiring or chugging. Hardly noticeable even. It always felt sort of like it wanted to go faster, but just couldn't. "Cutting out" as I said earlier may have been the wrong choice of words.

It would only happen when going way fast. I wouldn't think it would happen at 40mph unless you have some sort of very low gearing.

I would consider changing some jetting setups to see if it makes things better or worse first since it seems like your ignition system is dialed in.

ok let me try one more time(not to sound like a dick at all) ok it was the chines points, i put the NOS ones on and back to beauty but at the the top it is "floating as you described, not backfiring any more just kinda not getting the full power it should have, my carb is tuned nearly perefect.. waiting for 2 jets... a 40 pilot and an 88 main...i feel the 87 i have right now is just not perfect...

Have you tried making the gap a bit smaller than stock. With high rpm motors a smaller points gap will keep the points from floating until a higher rpm.

If you just installed brand new known good points and the problem persists then I'm leaning towards it being something else causing your issue. Since you just eliminated the points.

Not to say your gap or your timing is not wrong but don't blame it on the points.

Heck I still run a set of stock points in my 85cc Parma motor, probally could have a bit more power if I made the jump to a CDI. For the time being it's just fine without any float even at the rpms the motor is able to get to.

should i try a hotter or colder plug?

Dude get your carb tuned better before you get a hotter plug.

my friends bike is doing the same thing same kit on it

except for his was running fine hitting close to 50 until he hit a good size bump now its fucking up at around 40

changed the plug no difference

cleaned and set the points still does it

changed the timing both ways still does it

cleaned the whole fuel system still does it

it doesnt make any sense it sounds like preignition to me but theres nothing to pre ignite new head so no carbon build up B8HS plug so i dont think thats heating up too much