loading up after new top end? - Page 2

Rick · #11 08-29-2012, 06:48 PM

Check for an air leak, both carb boots....just a thought.

Jakobi · #12 08-29-2012, 07:39 PM

Coil, Plug, Plug lead, Plug cap, Stator??

I'd be looking at the reeds first though. Although common signs of bad reeds are hard starting and poor idle, it wouldn't be the first time someone has had the bike break up in the mid range because of them.

I experienced the same thing yesterday running the JD Red needle after sitting and idling for a bit, a cruise down the street and some more idling. Went to take off and the same thing happened. Coughed and farted and wouldn't take revs until I backed off. Mine was purely jetting related load up though!

GMP · #13 08-29-2012, 08:29 PM

By all means check the reeds if its been a year, but since you were in the top end, perhaps a questionable coil wire connection was disturbed. Also, more compression from a new top end means more demand on the coil, so if there is added resistance from a bad connection that might do it. Less compression at high RPM when the PV opens.

flybars · #14 08-30-2012, 12:08 AM

I had the same symptoms with my DE300 plus hard to start and poor idle. Long story short, it ended up being chipped reeds. The chips were on the underside in the centers of both reeds. Bike runs great again.

stainlesscycle · #15 08-30-2012, 08:13 AM

i really really wanted it to be reeds. i did. but it aint. 2 very very minor chip, not enough to be the problem i think.. now i'm stumped.

stainlesscycle · #16 08-30-2012, 08:14 AM

gonna disassemble/reassemble coil mount/plug cap/wiring/grounds/check stator? next. and gonna re-do airfilter. maybe airfilter is not flowing enough. and repack silencer i guess.