facebook1 youtube1 twitter1 instagram linkedin1 pinterest1

NOTICE:  If you are not a free registered member of the site, you will not see the photos in the forum, and you won't be able to access our premium member content. Please consider joining our community! REGISTER AND MAKE THIS BOX DISAPPEAR!

×

Pictures Posting Not Working (12 Jun 2023)

Picture uploads is again unavailable. We are working on the problem. Thanks for your patience.

Makotosun

Need help Diagnosing loss of power

  • Charlie72
  • Charlie72's Avatar Topic Author
  • Offline
  • Junior Member
  • Junior Member
  • Posts: 23
  • Likes received: 16

Need help Diagnosing loss of power was created by Charlie72

My 1972 DT2 250 seems to idle fine, but when I rev it to or past 4000 RPM in neutral, it sputters and loses power. Any thoughts on what may be the cause and what the noise may be coming from?
Lean mixture? Air leak? I included a video below for reference.

youtube.com/shorts/SUZ3dXcG0VY?feature=share

Last edit: 28 May 2023 20:10 by MarkT.
28 May 2023 19:40 #1

Please Log in or Create an account to join the conversation.

  • Posts: 13494
  • Likes received: 9346

Replied by MarkT on topic Need help Diagnosing loss of power

Sounds like ignition to me.

Have you changed the spark plug?
1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250
The following user(s) Liked this Post: Charlie72
28 May 2023 20:11 #2

Please Log in or Create an account to join the conversation.

  • Posts: 9713
  • Likes received: 3966

Replied by RT325 on topic Need help Diagnosing loss of power

Check the points gap. I'll bet it's about almost zero.
The following user(s) Liked this Post: Charlie72
28 May 2023 20:12 #3

Please Log in or Create an account to join the conversation.

Moderators: yamadmin, Makotosun, DEET, Vinnie, James Hart