WOT sound: NEE NEE NEE NEE -- 2001 Elite SR

bryanska · Post by **bryanska** » Mon Oct 06, 2008 1:39 pm

Hi - when I am cruising wide open on flat ground (35 MPH) I hear/feel an oscillation in the scooter. The motor kinda goes "NEE NEE NEE NEE" very subtly, as if I'm bouncing off a rev limiter.

It's not a hard bounce, and no power is lost. Mostly a difference in sound.

Normal? Not normal?

2001 Elite 50SR (SA50 I think)
2100 miles
Totally stock
Never de-carbon'd pipes or manifold
New NGK plug
Very slightly out-of-true front wheel after a crash (replaced front fork)

burnt_toast · Post by **burnt_toast** » Mon Oct 06, 2008 3:24 pm

Very slightly out-of-true front wheel after a crash (replaced front fork)

may have something to do with it.

otherwise if no power lost, I wouldn't worry about it. 35mph is right speed for stock S

Kenny_McCormic · Post by **Kenny_McCormic** » Mon Oct 06, 2008 3:54 pm

Plug chop

Post by **noiseguy** » Tue Oct 07, 2008 9:44 am

Don't all 2-strokes do that at WOT?

Kenny_McCormic · Post by **Kenny_McCormic** » Tue Oct 07, 2008 4:10 pm

noiseguy wrote:Don't all 2-strokes do that at WOT?

Not when tuned correctly. Should scream right along real smooth.

SpyderMike · Post by **SpyderMike** » Tue Oct 07, 2008 5:58 pm

mine did that, then i cleaned the carb and now the "bounce" is gone

SpyderMike · Post by **SpyderMike** » Tue Oct 07, 2008 6:00 pm

and my main jet was backed out 1.5-2 turns, so it was tight when i put it back together

dont know if that had anything to do w/ the noise, but that was the only problem i seen

wilsoniya · Post by **wilsoniya** » Mon Oct 13, 2008 12:32 am

Is your plug properly gapped? My scoot cuts out at high RPMs unless I have a very tiny gap.. like 0.7mm or less.

EliteS120ccJDM · Post by **EliteS120ccJDM** » Wed Oct 22, 2008 10:19 am

Probably the C.D.I ... change it to a racing C.D.I box..that's what I did..it takes of the rev limiter...so at top speed you won't hear that...and it throws more spark...so you'll probably top out at 36 or 37mph

Dac · Post by **Dac** » Wed Oct 22, 2008 4:55 pm

EliteS120ccJDM wrote:Probably the C.D.I ... change it to a racing C.D.I box..that's what I did..it takes of the rev limiter...so at top speed you won't hear that...and it throws more spark...so you'll probably top out at 36 or 37mph

your nuts. the stock CDI isnt rev limited at all. And the stock spark is already blue/white, you cant throw more spark.