Engine 17.5k topics

Camshaft, cylinder head, valves, cylinder block, pistons, exhaust, crankshaft, clutch, transmission, engine lubrication system, etc.
48 Replies

ZX7/Z1 Oil Cooler

Category: Engine Topic started 18 Nov 2015 14:46, by SWest
35.8k Views
Last Post by SWest 28 Feb 2016 16:49
0 Replies

Tech Forum Rules

Category: Engine Topic started 18 Jun 2007 20:45, by KZQ
29.8k Views
Last Post by KZQ 18 Jun 2007 20:45
 
8 Replies

Cam cap dowels

Category: Engine Topic started 07 Feb 2026 12:51, by danam
178 Views
Last Post by danam Today 20:27
98 Replies

Top-End Reassembly

Category: Engine Topic started 24 Oct 2025 00:16, by daveo
5028 Views
Last Post by daveo Today 19:39
23 Replies

Cam End Plugs + Stripped Valve Cover Threads

Category: Engine Topic started 05 Jan 2026 15:22, by tobeerortobike
743 Views
Last Post by tobeerortobike Yesterday 11:13
1 Replies

Points and condensers

Category: Engine Topic started Yesterday 07:03, by Saioro
50 Views
Last Post by Warren3200gt Yesterday 07:54
4 Replies

Z900 cam box cover

Category: Engine Topic started 09 Feb 2026 10:12, by Andyp62
119 Views
Last Post by Andyp62 11 Feb 2026 06:09
52 Replies

Blown motor

Category: Engine Topic started 28 Jan 2026 06:55, by Larry G
1068 Views
Last Post by Wookie58 10 Feb 2026 10:06
5 Replies

Cam cover caps

Category: Engine Topic started 07 Feb 2026 06:08, by kznutter
176 Views
Last Post by TexasKZ 08 Feb 2026 11:24
86 Replies

Terrible motor swap idea kz440

Category: Engine Topic started 22 Dec 2025 07:42, by bound
2318 Views
Last Post by bound 07 Feb 2026 18:56
3 Replies

Oil expander ring question

Category: Engine Topic started 06 Feb 2026 13:35, by Tjpgi
119 Views
Last Post by asphalt900 07 Feb 2026 05:04
9 Replies

HELP!!!! Engine block fisured!!!!!

Category: Engine Topic started 02 Feb 2026 12:55, by Ilfrid
286 Views
Last Post by daveo 04 Feb 2026 07:45
3 Replies

Porting the Z1 by Joe Hooper

Category: Engine Topic started 02 Feb 2026 14:45, by KZQ
313 Views
Last Post by KZQ 04 Feb 2026 05:50
21 Replies

Piston rings set

Category: Engine Topic started 24 Sep 2025 14:00, by Tjpgi
2073 Views
Last Post by Tjpgi 02 Feb 2026 10:58
7 Replies

Unusual cam wear

Category: Engine Topic started 30 Jan 2026 16:35, by danam
207 Views
Last Post by asphalt900 02 Feb 2026 04:30
3 Replies

Cam chain tensioner play

Category: Engine Topic started 01 Feb 2026 14:22, by danam
153 Views
Last Post by asphalt900 02 Feb 2026 04:18
4 Replies

Z1 Transmission Bearing

Category: Engine Topic started 30 Jan 2026 20:20, by JT-NZ
208 Views
Last Post by Cra-z1 01 Feb 2026 09:33
9 Replies

ID me

Category: Engine Topic started 27 Dec 2025 23:18, by Mr. E
419 Views
Last Post by Street Fighter LTD 31 Jan 2026 07:56
3 Replies

anyone familiar with Gemini exhausts?

Category: Engine Topic started 17 Dec 2005 20:57, by MkII
2279 Views
Last Post by gd4now 30 Jan 2026 10:59
6 Replies

Slotted J cam sprockets

Category: Engine Topic started 29 Jan 2026 07:39, by Wookie58
184 Views
Last Post by Wookie58 30 Jan 2026 00:27
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