Wrong cam caps bolts - Suzuki Z400 Forum : Z400 Forums
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post #1 of 6 (permalink) Old 12-11-2018, 10:10 AM Thread Starter
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Wrong cam caps bolts

I just bought a new to me 400 and am getting it running and corrected (lots of stupid hack work on it)

All 8 of the cam bolts are the same size.

I know 2 of them are supposed to be different.

Where can I buy these bolts or can I grind down the threads on the top of 2 of them to make then like the factory ones.

The cam and cap seem to be in good shape and do not look oil starved.

So what should I do?

Thank you for your help.
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post #2 of 6 (permalink) Old 12-12-2018, 03:55 AM
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Garage
3Dealer or RMATV or similar online OEm parts supplier will have them..


07120-0640B(replaces part #
07120-06403)
BOLT$2.80$2.5210+ In-Stock
407120-0645B(replaces part #
07120-06453)
BOLT$2.80$2.5210+ In-Stock

2007 LTZ 400.. 94mm J&E piston, +4mm hotrods crank, 536webb cams,wiseco valves, 39mm fcr, tokyo mods throttle spring, honda thumb throttle,spring removed. yoshimura full exhaust, honda 400ex intake tube, no air box
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post #3 of 6 (permalink) Old 12-12-2018, 07:25 PM Thread Starter
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Quote:
Originally Posted by amcf18 View Post
3Dealer or RMATV or similar online OEm parts supplier will have them..


07120-0640B(replaces part #
07120-06403)
BOLT$2.80$2.5210+ In-Stock
407120-0645B(replaces part #
07120-06453)
BOLT$2.80$2.5210+ In-Stock

Thank you but can you tell me which of the 2 part numbers are for the 'longer' bolts, the ones that I need just 2 of?

Thank you very much for your help.
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post #4 of 6 (permalink) Old 12-14-2018, 09:07 PM
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Item number 4 is the two long bolts that go on the exhaust cam cap with the oil passage (07120-0645B).

https://www.ronayers.com/oemparts/a/.../cylinder-head
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Last edited by jetmech25; 12-18-2018 at 11:37 AM.
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post #5 of 6 (permalink) Old 12-16-2018, 06:00 PM Thread Starter
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[quote=jetmech25;1487069]Item number 4 is the two long bolts that go on the exhaust can cap with the oil passage (07120-0645B).


Thank you very much.

Also it looks like i will be doing a full rebuild on this motor soon and that site should be useful for finding out part numbers.

Great help for sure!
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post #6 of 6 (permalink) Old 01-28-2019, 12:33 PM
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Just a thought but if there’s been a lot of dodgy work on it, then maybe the two longer bolts have been put in the wrong place on the engine somewhere and all you need to do is find where and swap them over?...
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