Posts
609
Joined
7/24/2017
Location
Sunman, IN
US
Edited Date/Time
10/25/2021 12:20pm
Hey guys bought that rmz 200sx from a fellow vital member bikes sick but got it home and runs like a super fast kdx200 sputters up top pretty bad, went from 182 to 172 main same result , new br8eix plug same result , set the external power valve same result , reeds were good shape still , c12 and checked the carb all was in good shape , pulled pipe to check front of piston it looked pretty good still no obvious signs of why it’s running like this.
200sx is usually a high rpm monster snd this falls flat and does not clean up on top any suggestions on what else to check
200sx is usually a high rpm monster snd this falls flat and does not clean up on top any suggestions on what else to check
about half inch.
Check spark before and after, should get better
PawPaw
get engine up to temp with throttle blips on the stand
once warm, (have a helper, its easier), shine a bright light into the pv window, grab a handful of WOT and verify that the pv is opening all the way by watching the pv mechanism (with the hash mark on it), move down and out of view.
There are 2 hash marks, the one on the left will not move, the one on the right should move..and at idle conditions, the movable hash mark should be slightly lower that the stationary one.
If it doesn't move, you may have a gummed up pv, or another small but fixable issue.
Please post pics of the pv set up once you remove the window and also pictures of the (2) black bolts on either side of the cyl that have some small lock washer type look to them, they are shaped like little light bulbs.
Good luck, J
The Shop
Thank you
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