COPY
‑ A 3 ‑
Oct./14/ 10
01-04-8224H (124cc) cylinder kits
Boring of a Crankcase
◇
To those who ask other specialist shop than us to do the work
○
Joining the cylinders together, process the crankcase little by little until the size is
φ
56.8
〜φ
57.0
mm with a crankcase gasket placed in between.
※
Processing of the crankcase will thin the thinkness of wall adjoining dowell pin holes. So the durability of the crankcase will be reduced, resulting in the
damage of the crankcase in some cases, which please take note.
Gasket
Dowel pin hole
２４±０．１
Dowel pin hole
２７±０．２
２６±０
．
１
２２．
５±０
．１
２４．５±０．
１
φ５６．
８
〜
φ５
７．
０
○
Since crankcase boring thins the wall thickness and reduces hardness, be
careful in tightening stud bolts.
○
Please take note that in some cases the crankcase may get damaged during
use. Furthermore, please be informed that we shall assume no liability to users
for compensation or damages whatsoever of any kind.
Caution
3-5-16 Nishikiorihigashi Tondabayashi Osaka Japan
TEL : 81-721-25-1357
FAX : 81-721-24-5059
URL : http://www.takegawa.co.jp
Co.,Ltd.
