step by step INTAKE & cyl TIMINGS measurement, calculation & modification. 1) by hand & 2) with an online calculator.
0:00 intro
0:05 the setup
0:17 cyl mount
1:24 PBT measuring
2:04 case marking
3:11 crank CLOSE & OPENING
3:41 TOP & BOTTOM dead end
4:04 crank intake OPENING
4:58 crank intake CLOSING
5:42 intake timings CALCULATING
6:21 NEW intake opening
7:10 NEW intake closing
8:17 cylinder timings
8:58 TENINCH online calculator
9:14 current timings
10:15 NEW timings
13:36 needed adjustments
13:49 TENINC circular calcs
- needed setup & cyl mounting
use a thick foot gasket so piston stay under the top
- measuring pbt, piston below top
- intake opening & closing current
- new opening & closing
- cylinder measuring
- calculation of the new setup:
a) raising cyl (4 transfer setting port timings)
b) raising exhaust port edge
exhaust port optimising:
https://youtu.be/pIcKh45Erv4
https://youtu.be/ZCnZ2T4DrzQ
TENINCH calculator:
http://ddog.at/stz/rechnen.php
FMP timings tables, 4cylinder: http://www.freakmoped.at/downloads/fmp_steuerzeiten_2014.xls
4intake:
http://www.freakmoped.at/downloads/fmp_kolbenweg_2014.xls
(new english version coming up!)
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https://www.patreon.com/freakmoped
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DISCLAIMER: the information shown in this video, is about THIS specific hardware. it is my personal observation documented with this video. It DOESNT automatically mean, that all such parts by this producer or seller do have or will have same issues.
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