Engine

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Piston sizes

Last post by KR-1R « Wed Jun 19, 2019 2:53 am
Replies: 4
by Skinnybob46 » Sun May 19, 2019 8:01 pm

4 Replies

7534 Views

Last post by KR-1R
Wed Jun 19, 2019 2:53 am
Clutch dragging

Last post by Stealthquattro « Sat Nov 21, 2020 2:51 pm
Replies: 2
by Stealthquattro » Fri Nov 20, 2020 2:07 pm

2 Replies

146 Views

Last post by Stealthquattro
Sat Nov 21, 2020 2:51 pm
Piston ring end gap

Last post by Frunobulax « Thu Nov 12, 2020 2:27 pm
Replies: 2
by Frunobulax » Wed Oct 28, 2020 5:24 am

2 Replies

326 Views

Last post by Frunobulax
Thu Nov 12, 2020 2:27 pm
Comp test after rebuild

Last post by Simba « Fri Oct 02, 2020 11:07 pm
Replies: 2
by Simba » Thu Oct 01, 2020 9:57 pm

2 Replies

385 Views

Last post by Simba
Fri Oct 02, 2020 11:07 pm
Is the ignition mod worth it?

Last post by mellorp « Tue Aug 25, 2020 9:51 am
Replies: 12
by solomonheckler » Sat Feb 29, 2020 8:28 pm

12 Replies

2045 Views

Last post by mellorp
Tue Aug 25, 2020 9:51 am
Engine painted parts??

Last post by jarno « Thu Jun 18, 2020 7:14 pm
Replies: 5
by zx12arrgh » Sun Jun 07, 2020 10:40 am

5 Replies

1634 Views

Last post by jarno
Thu Jun 18, 2020 7:14 pm
Vapour or fine grit blasting

Last post by Binetta Steve « Wed Jun 10, 2020 6:03 pm
Replies: 1
by zx12arrgh » Tue Jun 09, 2020 10:20 pm

1 Replies

407 Views

Last post by Binetta Steve
Wed Jun 10, 2020 6:03 pm
KMX 125 engine re-build.

Last post by JanBros « Wed Jun 03, 2020 12:10 am
Replies: 28
by stevo135+ » Sat Oct 26, 2019 6:20 pm
1

2
28 Replies

4737 Views

Last post by JanBros
Wed Jun 03, 2020 12:10 am
My baby is sick, start on one cylinder only.

Last post by solomonheckler « Fri May 15, 2020 9:01 pm
Replies: 6
by Xirious » Tue Mar 31, 2020 12:25 pm

6 Replies

1303 Views

Last post by solomonheckler
Fri May 15, 2020 9:01 pm
Kr-1s clutch assembly - gear lash

Last post by kiwisteve74 « Sun Apr 19, 2020 9:20 am
Replies: 10
by kiwisteve74 » Sun Apr 12, 2020 7:19 am

10 Replies

1813 Views

Last post by kiwisteve74
Sun Apr 19, 2020 9:20 am
kr1s compression test

Last post by strokerdave250350500 « Sun Apr 19, 2020 7:19 am
Replies: 14
by strokerdave250350500 » Sun Apr 05, 2020 11:01 am

14 Replies

1754 Views

Last post by strokerdave250350500
Sun Apr 19, 2020 7:19 am
Advice On Using Meteor 26j pistons

Last post by JanBros « Tue Apr 14, 2020 12:14 am
Replies: 1
by 3wheels » Mon Apr 13, 2020 11:09 pm

1 Replies

587 Views

Last post by JanBros
Tue Apr 14, 2020 12:14 am
Difficult to start

Last post by solomonheckler « Fri Dec 13, 2019 10:55 pm
Replies: 10
by solomonheckler » Fri Nov 22, 2019 8:30 pm

10 Replies

2745 Views

Last post by solomonheckler
Fri Dec 13, 2019 10:55 pm
KR-1R fuel starvation from carbs to cylinder head

Last post by 500bernie « Tue Oct 29, 2019 12:33 am
Replies: 4
by teardropdan » Sat Oct 26, 2019 2:41 pm

4 Replies

1379 Views

Last post by 500bernie
Tue Oct 29, 2019 12:33 am
Clutch assembly won’t slip! What am I doing wrong

Last post by Gerrit « Mon Oct 21, 2019 4:25 pm
Replies: 4
by Xirious » Sat Oct 19, 2019 2:38 pm

4 Replies

1434 Views

Last post by Gerrit
Mon Oct 21, 2019 4:25 pm
What Squish to use

Last post by Binetta Steve « Fri Oct 11, 2019 9:59 pm
Replies: 5
by geezagillard » Tue Oct 08, 2019 9:34 pm

5 Replies

1628 Views

Last post by Binetta Steve
Fri Oct 11, 2019 9:59 pm
Clutch and crankshaft tooth markings

Last post by Gerrit « Thu Sep 12, 2019 1:33 pm
Replies: 1
by kiwisteve74 » Mon Sep 09, 2019 11:27 am

1 Replies

1191 Views

Last post by Gerrit
Thu Sep 12, 2019 1:33 pm
Wiseco Piston Comparison

Last post by geezagillard « Sat Aug 24, 2019 8:39 pm
Replies: 3
by geezagillard » Sun Aug 18, 2019 11:22 pm

3 Replies

1742 Views

Last post by geezagillard
Sat Aug 24, 2019 8:39 pm
jollymoto exhaust an v force reeds jetting

Last post by slashing « Sat Aug 17, 2019 11:32 pm

by slashing » Sat Aug 17, 2019 11:32 pm

0 Replies

805 Views

Last post by slashing
Sat Aug 17, 2019 11:32 pm
Gearbox output shaft seals - now obsolete

Last post by Coose « Fri Jul 05, 2019 6:09 pm
Replies: 5
by Coose » Wed Jul 03, 2019 12:11 pm

5 Replies

1931 Views

Last post by Coose
Fri Jul 05, 2019 6:09 pm
Head gasket failure causes

Last post by Coose « Wed Jul 03, 2019 7:07 am
Replies: 13
by Professor » Tue Sep 25, 2018 9:53 am

13 Replies

2988 Views

Last post by Coose
Wed Jul 03, 2019 7:07 am
Info on Wideband air fuel ratio meter

Last post by scooble « Sun May 05, 2019 8:04 pm
Replies: 5
by fred » Sat May 04, 2019 9:16 pm

5 Replies

1658 Views

Last post by scooble
Sun May 05, 2019 8:04 pm
How to tell crank seals need replacing?

Last post by podman « Sun Apr 28, 2019 8:25 pm
Replies: 3
by SeanW » Thu Apr 25, 2019 12:54 pm

3 Replies

1474 Views

Last post by podman
Sun Apr 28, 2019 8:25 pm
KIPS Valve Oil Seal

Last post by Davy_G « Sun Apr 28, 2019 11:41 am
Replies: 2
by Davy_G » Thu Apr 25, 2019 8:29 pm

2 Replies

1092 Views

Last post by Davy_G
Sun Apr 28, 2019 11:41 am
remote carb idle screw

Last post by SeanW « Fri Apr 26, 2019 12:53 pm

by SeanW » Fri Apr 26, 2019 12:53 pm

0 Replies

842 Views

Last post by SeanW
Fri Apr 26, 2019 12:53 pm
Pump or pre mix

Last post by KR-1R « Wed Apr 03, 2019 11:26 pm
Replies: 5
by Pwrnp31 » Thu Mar 21, 2019 2:17 pm

5 Replies

1952 Views

Last post by KR-1R
Wed Apr 03, 2019 11:26 pm
earth electrode worn/ piston crown melted

Last post by tzkr1s « Wed Apr 03, 2019 10:09 pm
Replies: 4
by yatasaki » Mon Nov 12, 2012 8:52 pm

4 Replies

1875 Views

Last post by tzkr1s
Wed Apr 03, 2019 10:09 pm
Zeeltronic Ignition Map

Last post by Mbuk « Fri Mar 22, 2019 7:09 pm
Replies: 3
by Mbuk » Thu Mar 21, 2019 11:27 pm

3 Replies

1360 Views

Last post by Mbuk
Fri Mar 22, 2019 7:09 pm
Radiator Guard

Last post by Garry « Tue Mar 19, 2019 9:10 am
Replies: 3
by Pops » Sat Mar 16, 2019 4:36 pm

3 Replies

1322 Views

Last post by Garry
Tue Mar 19, 2019 9:10 am
Power valve removal

Last post by JanBros « Wed Mar 13, 2019 9:33 am
Replies: 5
by Spanky » Sat Mar 09, 2019 7:31 am

5 Replies

1803 Views

Last post by JanBros
Wed Mar 13, 2019 9:33 am
Nikon pipes

Last post by 500bernie « Wed Mar 06, 2019 8:50 pm
Replies: 6
by Robypvs » Fri Mar 01, 2019 3:38 pm

6 Replies

1619 Views

Last post by 500bernie
Wed Mar 06, 2019 8:50 pm
barrel platers recommendations please

Last post by KR-1R « Sun Mar 03, 2019 4:21 am
Replies: 7
by fred » Fri Mar 01, 2019 9:25 pm

7 Replies

1819 Views

Last post by KR-1R
Sun Mar 03, 2019 4:21 am
Vforce reed valve?

Last post by Kawakaare « Fri Feb 15, 2019 5:05 pm
Replies: 13
by Kawakaare » Tue Feb 12, 2019 11:31 pm

13 Replies

2901 Views

Last post by Kawakaare
Fri Feb 15, 2019 5:05 pm
Kr1 v kr1s barrel

Last post by brettsa « Thu Feb 14, 2019 7:09 pm
Replies: 1
by brettsa » Thu Feb 14, 2019 6:45 pm

1 Replies

1072 Views

Last post by brettsa
Thu Feb 14, 2019 7:09 pm
anyone recommend a crankshaft rebuilder

Last post by NOSHER « Wed Jan 16, 2019 4:21 pm
Replies: 6
by NOSHER » Sun Jan 13, 2019 12:39 am

6 Replies

2120 Views

Last post by NOSHER
Wed Jan 16, 2019 4:21 pm
1 cylinder intermittent firing

Last post by Skinnybob46 « Fri Jan 04, 2019 10:36 am
Replies: 5
by Skinnybob46 » Sun Dec 09, 2018 9:19 pm

5 Replies

2201 Views

Last post by Skinnybob46
Fri Jan 04, 2019 10:36 am
spraying engine ?

Last post by kinkyfreestyler « Tue Jan 01, 2019 11:50 am
Replies: 8
by kinkyfreestyler » Wed Dec 26, 2018 12:38 am

8 Replies

2367 Views

Last post by kinkyfreestyler
Tue Jan 01, 2019 11:50 am
KMX oversized piston.

Last post by stevo135+ « Tue Nov 06, 2018 8:26 pm
Replies: 8
by stevo135+ » Sat Jul 14, 2018 11:39 pm

8 Replies

3676 Views

Last post by stevo135+
Tue Nov 06, 2018 8:26 pm
Fitting the YFZ450 Radiator

Last post by 500bernie « Wed Oct 10, 2018 11:45 pm
Replies: 2
by 500bernie » Tue Oct 09, 2018 9:57 pm

2 Replies

1794 Views

Last post by 500bernie
Wed Oct 10, 2018 11:45 pm
boggy running between 3-5k at 1/4 throttle

Last post by EGG « Wed Oct 03, 2018 11:55 am
Replies: 5
by EGG » Mon Oct 01, 2018 1:45 pm

5 Replies

2093 Views

Last post by EGG
Wed Oct 03, 2018 11:55 am
Squish clearance and compression ratio - advice please!

Last post by JanBros « Sat Jul 28, 2018 10:15 am
Replies: 31
by James P » Sun Jan 18, 2015 7:19 am
1

2

3
31 Replies

10294 Views

Last post by JanBros
Sat Jul 28, 2018 10:15 am
Poor low speed running.

Last post by dmac « Fri Jul 27, 2018 5:50 pm
Replies: 14
by Tony » Tue Nov 15, 2011 11:20 pm

14 Replies

4409 Views

Last post by dmac
Fri Jul 27, 2018 5:50 pm
Balance shaft rebuild?

Last post by Joe439 « Thu Jul 12, 2018 3:42 am
Replies: 6
by Joe439 » Wed Feb 28, 2018 11:32 pm

6 Replies

2923 Views

Last post by Joe439
Thu Jul 12, 2018 3:42 am
not rev'ing past7500

Last post by Mouser « Sun Jul 08, 2018 8:31 pm
Replies: 43
by Mouser » Sat May 26, 2018 4:06 pm
1

2

3
43 Replies

10079 Views

Last post by Mouser
Sun Jul 08, 2018 8:31 pm
CRANK SEAL REPLACEMENT

Last post by NOSHER « Sun Jun 03, 2018 11:09 am
Replies: 12
by NOSHER » Sun Nov 05, 2017 8:29 pm

12 Replies

4195 Views

Last post by NOSHER
Sun Jun 03, 2018 11:09 am
reverse gear selector ? race box ?

Last post by JanBros « Sun May 06, 2018 2:48 pm
Replies: 3
by kinkyfreestyler » Mon Apr 30, 2018 9:56 pm

3 Replies

1963 Views

Last post by JanBros
Sun May 06, 2018 2:48 pm
PWK jet block o-ring?

Last post by Binetta Steve « Sun Apr 15, 2018 12:57 pm
Replies: 3
by Tim61 » Tue Apr 10, 2018 7:05 pm

3 Replies

2002 Views

Last post by Binetta Steve
Sun Apr 15, 2018 12:57 pm
combustion chamber profile for pump petrol road

Last post by JanBros « Sun Mar 04, 2018 11:21 am
Replies: 1
by fred » Sun Mar 04, 2018 3:54 am

1 Replies

1411 Views

Last post by JanBros
Sun Mar 04, 2018 11:21 am
Tonnage for crank press ?

Last post by fred « Wed Feb 28, 2018 6:36 pm
Replies: 3
by fred » Wed Feb 07, 2018 9:21 pm

3 Replies

1945 Views

Last post by fred
Wed Feb 28, 2018 6:36 pm
2 stroke software

Last post by Binetta Steve « Sat Feb 03, 2018 11:30 pm
Replies: 10
by JanBros » Mon Aug 08, 2011 8:41 pm

10 Replies

4585 Views

Last post by Binetta Steve
Sat Feb 03, 2018 11:30 pm

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