Topic: question on K8 carbs and pod filters

[lrutt]

with the fixed pilot jets, and 110 mains, can a person even put pods on these carbs.

I assume I might have to go to 120 mains and maybe slip a washer under the needles. I'm in Florida so at sea level basically. Anyone else been able to do this successfully?

I just had them apart to clean. they are in pretty good shape. Those pilots won't come out easy though. I tried one a little and it wasn't coming loose so I didn't want to chance it.

Also, I've yet to test the accel pump, but can the pump diaphram still be purchased if need be? I noticed on the linkage that you can turn the throttle about 1/4 turn before the linkage makes contact with the pump rod and starts to pumping. Is this normal? I'd think the pump would be activated with even the slightest movement of the throttle.

[eldar]

Well you should be able to use pods, You biggest issue might be your idle jets since they are not easily changed.

Your accel pump should actuate almost as soon as you turn the throttle. And I have finally looked in the carbs while doing this, and fuel DOES spray into the carbs, even with engine off. If that happens, you should not need a new diaphragm, but if you do, partsnmore has  them and I got mine there. It works just fine from what I can tell.

[flatblack]

I've got a K8, also, with stock carbs. This bike is a runner, but its cosmetics suck. I'm thinking through what I want to do to it and keep getting hung up on the pods vs. stock airbox. Is there another alternative?

TIA...

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[RSV12K]

I have a 77 (same set up as 78) with pod filters and a Mac exhaust. After doing some reading here, I went to a 117.5 mains (I think) and I lowered the clip from the top (the fifth position) to the middle (the third position). I'm running iridium plugs and Dyna coils too. The bike went from way too lean to a tad rich. Bike runs fine now and I could leave things as they are but over the winter I'll try putting the clip at two down from the top and hope that will be close enough.

[flatblack]

I have a 77 (same set up as 78) with pod filters and a Mac exhaust. After doing some reading here, I went to a 117.5 mains (I think) and I lowered the clip from the top (the fifth position) to the middle (the third position). I'm running iridium plugs and Dyna coils too. The bike went from way too lean to a tad rich. Bike runs fine now and I could leave things as they are but over the winter I'll try putting the clip at two down from the top and hope that will be close enough.

My 750 has a 4-1 exhaust, either Kerker or Mac. It's only problem is being *severely* cold-natured and an occasional sputter off idle. Pulls long and strong with what I believe is stock jetting. Needle clips are in the middle; isn't that the stock position?

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[hevykevy420]

I have a '78 CB750.  I bought the bike running and it had pods, 120 mains, and a kerker 4-1 pipe.  it ran really great on the highway, but idle was terrible, not sure if it was the pods fault or just needed tuning.

i've since ditched the pods because i couldn't stand how wind impacted them while riding.  I've also rebuilt with an 836 kit, back to 110 mains, and highlift cam.  I MUST SAY, I REALLY LIKE HAVING AN AIRBOX BACK ON THE BIKE.  I don't think whatever performance gains you get (if any) are worth it running the pods.  Your bike will idle better, throttle better off idle, and just run smoother with an airbox.  I would have to advise others to stay away from the pods, but i know a lot of people like them, to each their own!

I will admit, when you take the carbs off for the 80th time, it is a bit easier with the pods!!  But, i really like how the engine runs with the airbox!!!

[seaweb11]

78K here c/w pods...4-2 exhaust, Dyna ignit.
138 mains
Runs like a champ

[eldar]

One thing is the K8 does not have slots on the needle. The k7 does but not the K8, not stock anyways.

[RSV12K]

One thing is the K8 does not have slots on the needle. The k7 does but not the K8, not stock anyways.

I didn't know that. In that case, he would have to shim the needles, although for the life of me I have no idea where he would find those tiny washers. It would be easier to buy needles with slots, I'll bet.

[seaweb11]

P.S.I'm at sea level as well.

I didn't know that. In that case, he would have to shim the needles, although for the life of me I have no idea where he would find those tiny washers. It would be easier to buy needles with slots, I'll bet.

Again from a successful K8 with pods owner.  No need to "shim" anything.

Just pull out the 110s and replace with 138s and Go. sort of

[flatblack]

One thing is the K8 does not have slots on the needle. The k7 does but not the K8, not stock anyways.

Damn. Yer right. I was thinking of another bike/carb set...

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[lrutt]

Thanks for the replies. My intention right now is to leave the stock air box while I'm running the side car on it. I'll keep the whole bike pretty much stock with the side hack. If the hack doesn't pan out though, my intention is to customize, cafe style. I'd go clubmans, pods, tail section, might hammer some knee indents into the tank, maybe kicker only, rearsets, etc. You get the idea.

I do really want to make the side car work though, I need a 3 wheeled truck to haul stuff.

As for washers, some #2's work fine for needles. I've used those on other bikes.