Engine 17.5k topics

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

One simple question

Category: Engine Topic started 13 Jan 2026 10:01, by lovethemkzs
220 Views
Last Post by lovethemkzs 16 Jan 2026 11:03
13 Replies

650/750 engine in Z1 frame?

Category: Engine Topic started 12 Jan 2026 08:32, by Sixten
496 Views
Last Post by sf4t7 13 Jan 2026 16:13
15 Replies

Break-in Oil?

Category: Engine Topic started 30 Dec 2025 09:52, by daveo
549 Views
Last Post by daveo 11 Jan 2026 21:43
21 Replies

Whelp! I found the problem.

Category: Engine Topic started 05 Jan 2026 01:47, by Stereordinary
653 Views
Last Post by Daftrusty 10 Jan 2026 15:49
6 Replies

Ignition Timing on 1000J

Category: Engine Topic started 07 Jan 2026 09:08, by MJinCO
238 Views
Last Post by MJinCO 10 Jan 2026 15:01
3 Replies

Choke plunger

Category: Engine Topic started 09 Jan 2026 15:27, by seebold
198 Views
Last Post by zed1015 10 Jan 2026 03:38
22 Replies

How f***** am I?

Category: Engine Topic started 21 Jul 2021 17:51, by 1980 Z1R D3
3483 Views
Last Post by daveo 02 Jan 2026 14:11
3 Replies

Crankshaft oil pump gear

Category: Engine Topic started 31 Dec 2025 19:04, by richard-GPZ
215 Views
Last Post by daveo 01 Jan 2026 09:35
26 Replies

POOR PERFORMANCE

Category: Engine Topic started 26 Dec 2025 10:14, by chuck hahn
970 Views
Last Post by chuck hahn 29 Dec 2025 17:43
14 Replies

cylinder pressure

Category: Engine Topic started 19 Dec 2025 04:53, by GrzegorzSadoch
738 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.
2567 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
1642 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
258 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
371 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
314 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
3996 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
1052 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
353 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
344 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
1385 Views
Last Post by ckahleer 26 Nov 2025 20:05
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