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View Full Version : Carb reassemble with wrong jets? Help!


Griff
04-02-2010, 04:06 PM
So after a good cleaning and carb dip I began to reassemble my carb an whipped out the Honda service manual to ensure I got the correct jets in place. I then noticed the jets I took out weren't the jets they recommenced to put in the stock configuration.

The following jets came out, Main Jet (95), Slow Jet (35). I also have a 100 and 140 jet (for the Power Jet and Air Power Jet, but not sure which one went where).

The manual calls for Power Air 130, and Power Jet 130? I have neither.

This could be why I could never get this carb. tuned properly?

Any ideas? Time to buy some new jets?

Spokes
04-02-2010, 09:24 PM
I have the same manual. I only trust it about 80%. The preface page dates 1963 and most of the diagrams are pre 1964. I refer to the parts catalog for most direction. The parts catalog offers slow jet sizes 35,38 & 40 and main jets at 95, 98 & 100. It's hard to say if you have the wrong jets. The rebuild kits sometimes are not correct as well. I feel it's a crap shoot.

Aaron might send me his carb to evaluate along with an extra. It will be interesting to see which jets are installed.

aaron7
04-03-2010, 04:54 AM
Both my carbs have weird jets installed I believe. They weren't correct according to the manual! haha

Griff
04-03-2010, 07:46 AM
So do you guys think I should start by putting the 100 in the Power Air and the 140 in the Power Jet or vice versa?

For you guys that have good running bikes, what do you have in there?

Spokes
04-03-2010, 09:08 AM
I used some pic software to highlight a pic of the CA95 carb shown in the thread"is this the correct carb for the CA95?"

It shows a #130 on the outside "stem". My guess, for you, since you have a 140, it should go in that position. I think is makes sense to have more air and less gas.

Crap shoot with an example.
Hope it helps

Griff
04-03-2010, 04:00 PM
Yea, I tossed the 140 on the stem (Power air jet) and the 100 on the Power jet. Started first kick. Can't ride it yet to see how it's fueled though as I have to diagnose and repair a surging idle problem (new thread). I feel like I'm soooo close to riding this again daily!

mk2davis
04-03-2010, 04:02 PM
I just pulled my carb off to replace the main jet, and I only see two jets. At the risk of sounding dumb, I don't see a Powerjet.

My slow jet is #35 (that's the way it came), and I'm up to a 115 main jet due to a UNI airfilter. It came with a 100.

Griff
04-03-2010, 04:06 PM
Yup the CA95 has a special carb with the power circuit. It's not the in the bowl, it's up at the top of the carb.

Its the two open threaded holes at the top in this pic.

mk2davis
04-03-2010, 04:32 PM
I learn something new every day. On mine, the port that goes to the side is threaded and capped, but has a 130 jet in there.

I see the brass piece facing the rear, but I can't quite see the face of it.

Sam Green
04-04-2010, 02:32 AM
I quoted some jet sizes in another thread, seems like different sizes were used in the later models, This is one of the reasons I am doing some reserch on the different cams that were fitted to the Benly series of bikes. Changes in cam design can afect carburation.

Sam.

J ee
08-15-2011, 02:03 PM
Yup the CA95 has a special carb with the power circuit. It's not the in the bowl, it's up at the top of the carb.

Its the two open threaded holes at the top in this pic.

Griff,
Are both these left open - nothing screwed into the orifices???

Spokes
08-15-2011, 06:01 PM
Here is a pic showing that two jets are screwed into the ports
http://www.fourwheelforum.com/forum/picture.php?albumid=23&pictureid=628

J ee
08-16-2011, 05:41 AM
Thanks for the great picture Spokes - and GOLD no less ;-)
Can you advise the jet sizes or numbers?
Appreciate all the support.

Spokes
08-16-2011, 07:31 PM
The jet in the "tube" is marked 180

The screw on the side has no hole, but behind it is a jet deeply screwed in marked 130

Sorry about the color...I was in the middle of polishing the carb. It should of appeared chrome like....

J ee
08-17-2011, 04:36 AM
Many thanks for the info, and ... gold looks better than chrome ;-)

J ee
08-18-2011, 10:43 AM
Anyone know where to source a kit for the KeiHin PW20HOV carb?
Tried the Keyster kit KH-0042 - although marked as for the CA95, it definitely is not (wrong sized jets & gaskets).
Thanks

Spokes
08-18-2011, 08:33 PM
Odd that the KH-0042 kit is wrong. Your only other choice is KH-0035 which is for a C95. Go to www.olypen.com and search carb kits. See if the pic of KH-0035 is a closer match. I do have some extra good used CA95 carb parts. If you get into a jam I might be able to help. PM me with what you need.

J ee
08-19-2011, 05:08 AM
Thanks - missed that they listed two kits.
Have looked at the images & tried to compare some dimensions (O-rings for example - after calibrating on the needle jet clip) seems to be a closer match.
Have e-mailed Terry & Carole at Oly to see if they can confirm the KH-0035 and PW20HOV compatibility.

lavs4X4
08-19-2011, 06:42 AM
I just ordered the KH-0035 kit from retro bikes. Everthing fit great. I orginally purchased the kh-0042 kit off ebay and the gasket, needle valve, and a few other things were incorrect. I looked at both boxes last night and the kh-0042 kits says its for the c95 model, and the kh-0035 kit says ca95 the gasket and needle valve fit. Hope this helps. SO the kh-0035 kit should do the trick.

J ee
08-19-2011, 01:01 PM
Thanks - most encouraging.
Will swap for the KH-0035

comp_wiz101
08-20-2011, 05:10 PM
I just ordered the KH-0035 kit from retro bikes. Everthing fit great. I orginally purchased the kh-0042 kit off ebay and the gasket, needle valve, and a few other things were incorrect. I looked at both boxes last night and the kh-0042 kits says its for the c95 model, and the kh-0035 kit says ca95 the gasket and needle valve fit. Hope this helps. SO the kh-0035 kit should do the trick.

I too made the mistake of ordering the KH-0042. The gasket was much more square than the one on mine ('62 ca95). Is the KH-0035 bowl gasket a good fit for the rounded-bowl ca95 carbs?