Derbi Pyramid Reed HOT HOT HOT

todd amundson /

IMG_1617.JPG

Engine rebuilt. Case matched Derbi Pyramid Reed with NOS cast iron MK65. The head is the original 50cc re-shaped. VM 20 with 195 main. It's at the point where it blubers.

IMG_1618.JPG

The ignition is Powerdynamo set at 2.0mm BTDC. If i retard timing, it gets hotter faster. The bike hits 400 after maybe a block or two. It gets hot way fast. It starts and idles beautifly. I just can't ride it. I went out the other night and seized 3 times. The wheel locks up and won't release until the bike stops sliding. I can't believe I didn't fall.

What other trick can I try to get these temps down?

Subject Written By Posted
  Derbi Pyramid Reed HOT HOT HOTTopic by: todd amundson todd amundson 12/19/17 08:13PM
  Re: Derbi Pyramid Reed HOT HOT HOTRe: Full Tuck Full Tuck 12/19/17 10:44PM
  Re: Derbi Pyramid Reed HOT HOT HOTRe: todd amundson todd amundson 12/20/17 01:47AM
  Re: Derbi Pyramid Reed HOT HOT HOTRe: A2 Andrew A2 Andrew 12/20/17 10:48AM
  Re: Derbi Pyramid Reed HOT HOT HOTRe: Downhill Harvey (OFMC) Downhill Harvey (OFMC) 12/20/17 02:54AM
  Re: Derbi Pyramid Reed HOT HOT HOTRe: Ken Roff Ken Roff 12/20/17 11:19AM
  Re: Derbi Pyramid Reed HOT HOT HOTRe: Mikey Antonakakis Mikey Antonakakis 12/20/17 11:24AM
  Re: Derbi Pyramid Reed HOT HOT HOTRe: todd amundson todd amundson 12/20/17 11:37AM
  Re: Derbi Pyramid Reed HOT HOT HOTRe: todd amundson todd amundson 12/20/17 12:03PM
  Re: Derbi Pyramid Reed HOT HOT HOTRe: Stephen Simmons Stephen Simmons 12/23/17 12:37PM
  Re: Derbi Pyramid Reed HOT HOT HOTRe: todd amundson todd amundson 12/23/17 01:54PM
  Re: Derbi Pyramid Reed HOT HOT HOTRe: todd amundson todd amundson 12/20/17 01:29PM
  Re: Derbi Pyramid Reed HOT HOT HOTRe: Baron Von Hamilton Baron Von Hamilton 12/21/17 10:05PM
  Re: Derbi Pyramid Reed HOT HOT HOTRe: cheetahchrome . cheetahchrome . 12/21/17 01:42PM
  Re: Derbi Pyramid Reed HOT HOT HOTRe: Mikey Antonakakis Mikey Antonakakis 12/21/17 05:20PM
  Re: Derbi Pyramid Reed HOT HOT HOTRe: todd amundson todd amundson 12/21/17 08:42PM
  Re: Derbi Pyramid Reed HOT HOT HOTRe: Mikey Antonakakis Mikey Antonakakis 12/24/17 06:02PM
  Re: Derbi Pyramid Reed HOT HOT HOTRe: Jonathan Feldman Jonathan Feldman 12/23/17 02:15AM
  Re: Derbi Pyramid Reed HOT HOT HOTRe: Stephen Simmons Stephen Simmons 12/23/17 02:51PM
  Re: Derbi Pyramid Reed HOT HOT HOTRe: Ryan N. Ryan N. 12/24/17 05:17PM
  Re: Derbi Pyramid Reed HOT HOT HOTRe: todd amundson todd amundson 12/25/17 12:11PM
  Re: Derbi Pyramid Reed HOT HOT HOTRe: P D P D 12/25/17 08:17PM
  Re: Derbi Pyramid Reed HOT HOT HOTRe: Ryan N. Ryan N. 12/26/17 07:09AM
  Re: Derbi Pyramid Reed HOT HOT HOTRe: Stephen Simmons Stephen Simmons 12/26/17 07:28PM
  Re: Derbi Pyramid Reed HOT HOT HOTRe: todd amundson todd amundson 12/27/17 01:31AM
  Re: Derbi Pyramid Reed HOT HOT HOTRe: Stephen Simmons Stephen Simmons 12/27/17 05:34AM
  Re: Derbi Pyramid Reed HOT HOT HOTRe: Ken Roff Ken Roff 12/27/17 01:10PM
  Re: Derbi Pyramid Reed HOT HOT HOTRe: Stephen Simmons Stephen Simmons 12/27/17 01:12PM
  Re: Derbi Pyramid Reed HOT HOT HOTRe: Ninja . Ninja . 12/27/17 02:36PM
  Re: Derbi Pyramid Reed HOT HOT HOTRe: todd amundson todd amundson 12/27/17 06:42PM
  Re: Derbi Pyramid Reed HOT HOT HOTRe: todd amundson todd amundson 12/28/17 05:00PM
  Re: Derbi Pyramid Reed HOT HOT HOTRe: Baron Von Hamilton Baron Von Hamilton 12/28/17 06:23PM
  Re: Derbi Pyramid Reed HOT HOT HOTRe: todd amundson todd amundson 12/28/17 07:11PM
  Re: Derbi Pyramid Reed HOT HOT HOTRe: Baron Von Hamilton Baron Von Hamilton 12/28/17 07:43PM
  Re: Derbi Pyramid Reed HOT HOT HOTRe: P D P D 12/28/17 10:12PM
You must log in before posting to this forum.

Click here to login.