KZR's Bikes of the Month for 2024

1981 750E2

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05 Oct 2015 10:31 #693453 by DobbinsCMA
Replied by DobbinsCMA on topic 1981 750E2
So do i buy new spark plug wires? Seems Z1 has some good prices but I would rather not wait on shipping. Would a regular auto parts store have what I am looking for?

'80 Kz1000B4
MTC 1075 .375 webcams Mikuni RS34
KZ440 Project
81'KZ750E2 Project
Past- '81 Kz750H :(

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05 Oct 2015 11:05 #693458 by martin_csr
Replied by martin_csr on topic 1981 750E2
You can get them from the auto parts store -- you'd probably want 7mm copper core.
Here's some info I saved, gleaned from a KZR topic:

www.kzrider.com/forum/4-electrical/59857...ly-sourced-ign-wires
Locally sourced Ign Wires by The_Proletariat
Omni Spark brand. 7mm copper core. ~$12.
come with HEI boots that slip over the Dyna coil towers. he used zip ties to secure them to the coils.

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05 Oct 2015 12:10 #693465 by DobbinsCMA
Replied by DobbinsCMA on topic 1981 750E2
Thanks Martin. So basically I buy this 7mm wire and it will go into the holes where the coil has a pointy thing? It is a different thing on my Kz1000 as i have dyna coils on that one.

'80 Kz1000B4
MTC 1075 .375 webcams Mikuni RS34
KZ440 Project
81'KZ750E2 Project
Past- '81 Kz750H :(

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05 Oct 2015 13:34 #693483 by DobbinsCMA
Replied by DobbinsCMA on topic 1981 750E2
ok so got them installed but still get inconsistent spark when hitting the ignition. The starter motor turns over so I wonder why it isnt always sparking. Clean the connections?

'80 Kz1000B4
MTC 1075 .375 webcams Mikuni RS34
KZ440 Project
81'KZ750E2 Project
Past- '81 Kz750H :(

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07 Oct 2015 13:04 #693687 by DobbinsCMA
Replied by DobbinsCMA on topic 1981 750E2
IT LIVES! got it started today and rode it to the bank. It backfires pretty hard sometimes and seems like it isnt always getting enough fuel. Time to tune it up! SO excited. Thank you guys for your help especially since im an idiot with electronics.

'80 Kz1000B4
MTC 1075 .375 webcams Mikuni RS34
KZ440 Project
81'KZ750E2 Project
Past- '81 Kz750H :(

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04 Mar 2016 16:10 #713850 by DobbinsCMA
Replied by DobbinsCMA on topic 1981 750E2
Did a valve check today. I didn't check the torque on the bolts as my nice torque I loaned out. I picked up one from harbor freight for 9 bucks...not very good. Hopefully I can exchange these shims around.

Exhaust
1. .1mm
2. .08mm
3. .18mm
4. .1mm
Intake
1. .08mm
2 .065-.07mm but not .076mm
3. .105mm
4. .105-.115mm but not .12mm

'80 Kz1000B4
MTC 1075 .375 webcams Mikuni RS34
KZ440 Project
81'KZ750E2 Project
Past- '81 Kz750H :(

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04 Mar 2016 16:13 #713851 by DobbinsCMA
Replied by DobbinsCMA on topic 1981 750E2
Acceptable range .08-.18mm

'80 Kz1000B4
MTC 1075 .375 webcams Mikuni RS34
KZ440 Project
81'KZ750E2 Project
Past- '81 Kz750H :(

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  • SWest
  • Offline
  • Sustaining Member
  • 10 22 2014
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04 Mar 2016 16:17 #713852 by SWest

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04 Mar 2016 16:24 #713854 by DobbinsCMA
Replied by DobbinsCMA on topic 1981 750E2
Idk yet Steve. I got pulled away from the garage. I'll have to get to the tensioner and camshaft removal soon.

'80 Kz1000B4
MTC 1075 .375 webcams Mikuni RS34
KZ440 Project
81'KZ750E2 Project
Past- '81 Kz750H :(

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05 Mar 2016 12:47 #713969 by DobbinsCMA
Replied by DobbinsCMA on topic 1981 750E2
Here you go Steve! hopefully you can give me some good advice! This is my first under bucket valve/shim swap. Thanks guys! I also have pictures of the shim if that helps :)
Exhaust
1. .1mm Shim 2.65
2. .08mm Shim 2.0 or 2.60 or 2.80 Think it is a 0 not 6/8
3. .18mm Shim 2-30?
4. .1mm Shim 2.5
Intake
1. .08mm Shim 2.0
2 .065-.07mm but not .076mm Shim 2.5
3. .105mm Shim 2.55
4. .105-.115mm but not .12mm Shim 2.5

'80 Kz1000B4
MTC 1075 .375 webcams Mikuni RS34
KZ440 Project
81'KZ750E2 Project
Past- '81 Kz750H :(

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  • SWest
  • Offline
  • Sustaining Member
  • 10 22 2014
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05 Mar 2016 14:18 #713986 by SWest
Replied by SWest on topic 1981 750E2
I d\o it in inches. Greek to me. Some seem too much to me. I have to wonder why.
Steve
Shim table in mm.

Attachments:

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05 Mar 2016 19:55 #714039 by DobbinsCMA
Replied by DobbinsCMA on topic 1981 750E2
Thanks! I saw that chart in the manual. I do need to grab my micrometer and check the shims again because it seems odd that a 2.0 shim would be there on a bike with 10000 miles. How do I grind down the valve stems?

'80 Kz1000B4
MTC 1075 .375 webcams Mikuni RS34
KZ440 Project
81'KZ750E2 Project
Past- '81 Kz750H :(

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