Engine 17.5k topics

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

Valve adjustment Z1/KZ 1000

Category: Engine Topic started 16 May 2017 20:50, by SWest
41k Views
Last Post by xstreamcanadian 14 May 2024 13:04
49 Replies

ZX7/Z1 Oil Cooler

Category: Engine Topic started 18 Nov 2015 14:46, by SWest
34.8k 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
29.6k Views
Last Post by KZQ 18 Jun 2007 20:45
 
20 Replies

POOR PERFORMANCE

Category: Engine Topic started 26 Dec 2025 10:14, by chuck hahn
245 Views
Last Post by chuck hahn Today 18:26
15 Replies

How f***** am I?

Category: Engine Topic started 21 Jul 2021 17:51, by 1980 Z1R D3
2860 Views
Last Post by sf4t7 Today 17:16
5 Replies

Upgrading a KZ400 engine with 440 cylinders and oversize pistons

Category: Engine Topic started Yesterday 05:36, by quantity
31 Views
Last Post by Stereordinary Yesterday 08:03
17 Replies

Terrible motor swap idea kz440

Category: Engine Topic started 22 Dec 2025 07:42, by bound
396 Views
Last Post by Stereordinary Yesterday 07:57
0 Replies

ID me

Category: Engine Topic started Yesterday 23:18, by Mr. E
39 Views
Last Post by Mr. E Yesterday 23:18
70 Replies

Top-End Reassembly

Category: Engine Topic started 24 Oct 2025 00:16, by daveo
3275 Views
Last Post by daveo 24 Dec 2025 07:03
14 Replies

cylinder pressure

Category: Engine Topic started 19 Dec 2025 04:53, by GrzegorzSadoch
389 Views
Last Post by kevski 22 Dec 2025 09:04
58 Replies

Problems installing Andrews x3 camshafts

Category: Engine Topic started 07 Oct 2025 02:40, by v.f.
1923 Views
Last Post by daveo 10 Dec 2025 11:36
8 Replies

Clutch basket rebuild Z1, 900, KZ1000

Category: Engine Topic started 19 Feb 2024 12:40, by Vinsky
1503 Views
Last Post by Vinsky 08 Dec 2025 16:15
3 Replies

ATU - will a KZ650 Twin ignition advance unit fit a KZ440 Ltd

Category: Engine Topic started 03 Dec 2025 09:01, by Utton
165 Views
Last Post by Wookie58 03 Dec 2025 09:55
3 Replies

Cam Cap Locating Pin / Bolt Guide

Category: Engine Topic started 01 Dec 2025 19:11, by Mlodge
242 Views
Last Post by TexasKZ 02 Dec 2025 14:11
5 Replies

Petcock leaking on 1978

Category: Engine Topic started 01 Dec 2025 15:01, by Balut
195 Views
Last Post by asphalt900 02 Dec 2025 00:43
8 Replies

engine stand

Category: Engine Topic started 25 Jan 2020 18:36, by Mikaw
3817 Views
Last Post by sf4t7 01 Dec 2025 08:41
13 Replies

mis-matched cam caps

Category: Engine Topic started 28 Nov 2025 15:48, by Cra-z1
665 Views
Last Post by Cra-z1 30 Nov 2025 16:45
3 Replies

What’s in my oil pan?

Category: Engine Topic started 28 Nov 2025 15:43, by Legionnaire1856
255 Views
Last Post by asphalt900 29 Nov 2025 06:04
4 Replies

Bad oil leak

Category: Engine Topic started 28 Nov 2025 11:53, by Legionnaire1856
242 Views
Last Post by daveo 28 Nov 2025 22:41
31 Replies

5200rpms at 70mph, too high!! kz1000m2

Category: Engine Topic started 23 Nov 2025 12:15, by bound
886 Views
Last Post by ckahleer 26 Nov 2025 20:05
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