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Title: 1978 250 pipe
Post by: Mike Korgan on December 17, 2018, 04:00:24 PM

Has any one who has changed their 77 mc5 pipe for a 1978 mc5 "torque pipe" required re-jetting? If so, how much change did you make?
Thanks,
Mike

Title: 1978 250 pipe
Post by: Larry Perkins on December 17, 2018, 04:29:08 PM

Gary Ellis has experience in that area and I think Mike Winter too. They should be able to help. My thought is not but never did it. No seat of the pants experience for me on that one.

Larry P

Title: 1978 250 pipe
Post by: 454MRW on December 17, 2018, 06:03:30 PM

My 78 mc5 250 had a Mikuni carb but I did use a Circle F 78 style torque pipe previously on a 77 MC5 250 with a stock Bing 36mm, and it ran just fine. Mike

Michael R. Winter
I enjoy rebuilding and appreciating Pentons!
1974 250 HS Penton
1976 MC5 400
1978 KTM 78 GS6 250
L78-79 MX6 175-250 KTM's
1976-78 125-400 RM's
2007 CR125R Honda
1977 MC250 Maico
2017 KTM Freeride 250R

Title: 1978 250 pipe
Post by: skiracer on December 17, 2018, 10:54:28 PM

I have one on my 76 MC 5 250. I run a Lectron carb, and did not have to change any of my settings.....

1976 MC 5 Original Owner
1976 Penton 175 XC

Title: 1978 250 pipe
Post by: G Ellis on December 18, 2018, 10:18:54 AM

Each bike is different, but most of the time no jetting changes.

Title: 1978 250 pipe
Post by: Mike Korgan on December 18, 2018, 04:12:23 PM

Thanks everyone.
Mike

Penton Owners Group

General Discussion => Penton Talk => Topic started by: Mike Korgan on December 17, 2018, 04:00:24 PM