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Author Topic: 750K guys,need your good eyes,carb ID & tuning [edit] My new bike  (Read 1028 times)

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Offline flybox1

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750K guys,need your good eyes,carb ID & tuning [edit] My new bike
« on: April 05, 2012, 08:42:19 AM »
I'm going to check out this 750 in a bit.  K2 in a K8 frame.

I have 2 major questions. 
Can you guys tell if those are K2 or K8 carbs?
If they are K8 carbs, are they tunable to the K2?
(the soon to be PO says it currently doesnt run and it ran poorly.  wondering if its mismatched carbs)
« Last Edit: April 06, 2012, 07:56:24 AM by flybox1 »
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'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

Past Bikes
1974 550K0 (stock), 1973 CB350F (stock), 1983 Yamaha XS400K (POS)
77/78 cool 2 member #3
"Knowledge without mileage equals bullsh!t" - Henry Rollins

"This is my CB. There are many like it, but this one is mine…"

Offline brandEn

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Re: 750K guys, need your good eyes, carb ID & tuning ?
« Reply #1 on: April 05, 2012, 08:55:22 AM »
Those are 78 PD carbs. You can tell by the "keyhole" shaped carb slide covers. The early model carbs are round. It also has a 78K tank.
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Offline flybox1

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Re: 750K guys, need your good eyes, carb ID & tuning ?
« Reply #2 on: April 05, 2012, 08:59:32 AM »
Ok, good to know. Thx BrandEn.
would there be any major hurdles in tuning them to the K2 engine?

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'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

Past Bikes
1974 550K0 (stock), 1973 CB350F (stock), 1983 Yamaha XS400K (POS)
77/78 cool 2 member #3
"Knowledge without mileage equals bullsh!t" - Henry Rollins

"This is my CB. There are many like it, but this one is mine…"

Offline brandEn

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Re: 750K guys, need your good eyes, carb ID & tuning ?
« Reply #3 on: April 05, 2012, 09:01:51 AM »
Sorry but I can't really comment on the tuning. I am sure anything is possible. You can always get early model carbs and airbox as an option. Good Luck!
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Offline 754

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Re: 750K guys, need your good eyes, carb ID & tuning ?
« Reply #4 on: April 05, 2012, 09:53:50 AM »
 The carbs will work..bolt right on with correct rubbers.
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Maker of the WELDLESS 750 Frame Kit
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Kelowna B.C.       Canada

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It's All part of the ADVENTURE...

73 836cc.. Green, had it for 3 decades!!
Lost quite a few CB 750's along the way

Offline flybox1

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Re: 750K guys, need your good eyes, carb ID & tuning ?
« Reply #5 on: April 05, 2012, 10:42:14 AM »
Thx 754 - great.  just what i was hoping to hear.

thanks for the quick replies guys.
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'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

Past Bikes
1974 550K0 (stock), 1973 CB350F (stock), 1983 Yamaha XS400K (POS)
77/78 cool 2 member #3
"Knowledge without mileage equals bullsh!t" - Henry Rollins

"This is my CB. There are many like it, but this one is mine…"

Offline brandEn

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Re: 750K guys, need your good eyes, carb ID & tuning ?
« Reply #6 on: April 05, 2012, 03:15:13 PM »
Did ya get it?
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Offline Duanob

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Re: 750K guys, need your good eyes, carb ID & tuning ?
« Reply #7 on: April 05, 2012, 03:38:33 PM »
I saw that bike on CL this morning. Seemd like a decent deal for around here. Any luck?
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"Just because you flush a boatload of money down the toilet, doesn't make the toilet worth more",  My Stepfather the Unknown Poet

1974 CB360T
1976 CB550K2 Resurrected
1976 CB550F2 Barn Find
1979 CX500 VG "HONDA-GUZZI"
2007 Moto Guzzi Breva 750ie
2015 BMW F700GS
Another 1976 CB550K Cafe?

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Offline flybox1

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Re: 750K guys, need your good eyes, carb ID & tuning ?
« Reply #8 on: April 06, 2012, 07:55:26 AM »
YUUUP!  brought it home last night. w/ title $700   ;D
too far from stock to to get it back there with my skill set and tools, so its' going the mild cafe route.
K8/K2 Hybrid. Needs batt, tuneup, exhaust, covers, PC, paint....etc
Heading south of the border for a week with the famdamily.
Hoping tequila and hot sun will help my vision of the final product be clear.   :o
Project Mutt begins when i get back. 8)
« Last Edit: April 06, 2012, 07:57:06 AM by flybox1 »
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'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

Past Bikes
1974 550K0 (stock), 1973 CB350F (stock), 1983 Yamaha XS400K (POS)
77/78 cool 2 member #3
"Knowledge without mileage equals bullsh!t" - Henry Rollins

"This is my CB. There are many like it, but this one is mine…"

Offline brandEn

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Re: 750K guys,need your good eyes,carb ID & tuning [edit] My new bike
« Reply #9 on: April 06, 2012, 08:17:40 AM »
YAY!
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