Crud Coming from the Exp Chamber

M

MBH

Member
Dec 3, 2003
6
0
I'm new to 2 strokes and this may be a dumb question. Just bought a used (2001) KDX220 and noticed some tar-like 'gunk' on the swing arm, rear caliper, etc. Cleaned most of it off, went for a couple of rides, and noticed that it appears to coming from the joint between the expansion chamber and spark arrestor, from underneath the rubber collar. What's up? Do I need a better seal in the joint, is it a tuning problem, or something else? Appreciate any help here.

MBH
 
M

moridin

~SPONSOR~
Dec 30, 2003
257
0
MBH - you are rich my man. Time to jet that thing.

You will find more info here than you could vere imagine - also check out C Dave's page - it has the exact jets you will need for your bike. The bikes come very rich from the factory and will leak all over the place. May be a good time to switch to a good synthetic oil as well.

Again - oil is like women - everyone likes something different. I personally run Mobil 1 MX2t at 40:1. Zero spooge - but the bike is jetted right. Any oil will do as long as your jetting is good.

Any more questions - just ask - opions are o'plenty around here.
 
C

canyncarvr

~SPONSOR~
Oct 14, 1999
4,005
0
CDave's page is linked in the stickied thread at the top of this forum, 'Every KDX rider should read....'
 
M

MBH

Member
Dec 3, 2003
6
0
Looks like it's time for me to learn about jetting. I'm running synthetic at 40:1, so that part is done. Thanks for the quick advice.

MBH
 
You must log in or register to reply here.

Similar Topics

B
lots of oil drained out of the spark arrestor
Replies
19
Views
2K
bronco95tgp
B
How-To KDX - Motorcycle Carburetor Tuning
Replies
2
Views
33K
jaguar
KDX Hop-Up Guide
Replies
0
Views
27K
Okiewan
T
CR125 Gap between expansion chamber and muffler??
Replies
1
Views
940
tcuda499
T
Canadian Dave's Project KDX
Replies
0
Views
8K
Okiewan
Cookies are required to use this site. You must accept them to continue using the site. Learn more…