Topic: K7 Keihin carbs on K5?

[nitsua93]

The only set of carbs I have are the K7 Keihins, which people seem to not like very much. Am I fine to use them with my K5?

Also, would it be beneficial to use K7 head,valves, and cam on a K5? Thanks!

[seanbarney41]

I've thought about trying 'em for the accelerator pump advantage but I don't think the needles are adjustable on those, which might make them difficult to tune for a non-stock combination.  I don't think there is any advantage to using the cylinder heads or cams either.

[750K]

77 PD41 carbs have the adjustable needles, the 78 PD42 have the non adjustable needles. Which means you need to shim them instead, I know you'll need different intake boots as the round top carbs and PD's use different carb to motor boots.

[nitsua93]

I did a dry fit with the 77 boots and they seemed like they'll fit. I need to boil them and try again. These, I believe, do not have the accelerator pump. Not %100 sure though.

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[bollingball]

I did a dry fit with the 77 boots and they seemed like they'll fit. I need to boil them and try again. These, I believe, do not have the accelerator pump. Not %100 sure though.

Sent from my HTC One X using Tapatalk 2

If they are 77 they have the pump. It will be on the # 2 carb look at the bowl it will look different. You might be able to see it a little on this pick. 77-78 look alike on the outside. They are some times called keyhole tops.
Ken

[nitsua93]

I did a dry fit with the 77 boots and they seemed like they'll fit. I need to boil them and try again. These, I believe, do not have the accelerator pump. Not %100 sure though.

Sent from my HTC One X using Tapatalk 2

If they are 77 they have the pump. It will be on the # 2 carb look at the bowl it will look different. You might be able to see it a little on this pick. 77-78 look alike on the outside. They are some times called keyhole tops.
Ken

Ah, I wondered what exactly that was. The screws were too rusty for me to take the top off of that part during inspection.

Sent from my HTC One X using Tapatalk 2

[Stev-o]

Bollingboll - that's an interesting rack you have for your carbs. Any specific use for it?

[bollingball]

Bollingboll - that's an interesting rack you have for your carbs. Any specific use for it?

I find it easy to hold them in the angle I need when checking floats and a few other things. Just frees up the hands. I just C-clamp it to the bench when I need it. Just old scrap 2x4s the rack pivots then I lock it down
Ken

[Stev-o]

Bollingboll - that's an interesting rack you have for your carbs. Any specific use for it?

I find it easy to hold them in the angle I need when checking floats and a few other things. Just frees up the hands. I just C-clamp it to the bench when I need it. Just old scrap 2x4s the rack pivots then I lock it down
Ken

Great idea.  I may copy it....