So.....you want to know if you have a plus 4mm or plus 5mm crank...heres how - Suzuki Z400 Forum : Z400 Forums
 
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post #1 of 7 (permalink) Old 03-06-2014, 07:46 PM Thread Starter
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So.....you want to know if you have a plus 4mm or plus 5mm crank...heres how

The plus four crank has the piston pin drilled offset from the top of the rod like this:




And the plus 5 has the piston pin Hole drilled dead center like this




Your welcome

OCTOBER 2009 QOTM

2012 QUAD OF THE YEAR

KFX525 (Kfx/Ltz400)
64.33hp 41.57tq
+10mm stroker, 96mm ice cube
Hsr 48mm carb, big custom webs, ported and welded head, titanium valves, titanium wrist pin. A few more things.

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Last edited by spize909; 03-06-2014 at 08:09 PM.
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post #2 of 7 (permalink) Old 03-06-2014, 08:18 PM
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thanks kfxguy, that sure helps


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hotrods +4 with webs cams 539 +3
cylinder works kit bigbore 93.96mm
Ti- wrist pin - vertex piston
Athena sleave bigbore
kibblewhite dual springs
Single Base cometic 3 layer headgasket.
Mikuni 34mm carb
Non-programable DYNA CDI
Trail tech lightweight flywheel
ALBA clutch carbonfibre & race springs
RIK Rings set - High Compression
No reverse, No First gear
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post #3 of 7 (permalink) Old 03-06-2014, 08:52 PM
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That's a great one! They used the same rod casting I bet
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post #4 of 7 (permalink) Old 03-06-2014, 11:38 PM Thread Starter
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Quote:
Originally Posted by CFM View Post
That's a great one! They used the same rod casting I bet
Yes....they have the same numbers on them lol

OCTOBER 2009 QOTM

2012 QUAD OF THE YEAR

KFX525 (Kfx/Ltz400)
64.33hp 41.57tq
+10mm stroker, 96mm ice cube
Hsr 48mm carb, big custom webs, ported and welded head, titanium valves, titanium wrist pin. A few more things.

Pics:

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post #5 of 7 (permalink) Old 03-07-2014, 12:22 AM
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You gave me this info awhile back when I was trying to figure it out. It helped. Thanks again for the tip.

03 ltz400
02 lt-a50
93 pw80
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post #6 of 7 (permalink) Old 03-07-2014, 09:49 AM
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Cool! Almost didn't see it at first. I am pretty sure the quad I am rebuilding has a +4 now I can tell Thanks!

03' Z400 -Full Ti Yoshimura TRS, FCR39, GP3 +2 stem, Elka stage 3's & link, Hermann swing arm, LSR axle, AC nerfs w/IMS healguards & pegs, DG bumper, OMF beadlocks, Maxxis I-Razars, Flexx Bars, QuadTech Shrouds

03' KFX400 - xc to mx rebuild going on here --->
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post #7 of 7 (permalink) Old 05-11-2014, 05:42 PM Thread Starter
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This needs to be a sticky!

OCTOBER 2009 QOTM

2012 QUAD OF THE YEAR

KFX525 (Kfx/Ltz400)
64.33hp 41.57tq
+10mm stroker, 96mm ice cube
Hsr 48mm carb, big custom webs, ported and welded head, titanium valves, titanium wrist pin. A few more things.

Pics:

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