Pod Rejett

Greetings, I have on my hands a 1982 Xj 750 Maxim. I stuck pods on it and now it's time to rejett. (I can tell it has way too much air because It only runs with the choke on). So I need to up my jet size for more fuel. What have you had luck with everyone? What shall I try? 123 main and a 43 pilot with 1 shim?

 

Sounds like theirs bigger issues than just needing a rejet, sounds like the carbs need to be cleaned.

Also prepare for a litany of answers you're not wanting to hear, pods are a fickle beast and even when jetted right can have other issues. It's not as easy as with pods you need to run X number over Y jetting, it's just not that simple.

We can probably get you in the ball park but you'll most likely need to test a few different Jets to find one that may work. But first I would take a step back and see what else needs to be addressed.

 

Put the airbox back on. You'll be happier.

 

If you insist on staying with the pod filters, try #124 mains and #42 pilots and clean the carbs and check the valve clearances.

There are no shims used on Hitachi carb needles....................

 

K-Moe, Naw. I've already read some of the stuff ya'll said. I chose to pod and tune.

Chacal; Thanks for the advice. That's where I'll start. Ill be pickin up a dyno too to help. Ill let ya know how it goes.

 

this is how you do it and where to start first
http://www.factorypro.com/tech_tuning_procedures/tuning_carbtune,CV,high_rpm_engines.html

I have a podded 750J have not looked into the carbs yet to see what po did for the mod. but it does stumble in first gear as the rpms start to climb just testing it out right now moves along to 65 have not gone over that yet but there does seem to be a slowness or lag in the accelaration. when I am done with my other 750k I will have something better to compare it to.

pods = to much air

but wont run unless choke is on points to dirty clogged pilot jets and passages.

 

Thanks Dog, That's a good step by step overview^
I will also mention that this isn't the first bike I've slapped pods on. I had an '85 Kawi VN700 that worked well with the pods. Biggest headache of carbs I've had to work on yet though.

As far as this bike goes... I got it for free with 10 year old gas still in it. I picked a Seca tank off Ebay for it that had already been cleaned. I fully rebuilt and synced the carbs already too. New plugs, battery and oil. New tires and brakes etc.

Now I'm making it my own.

This thread was not asking whether I should or should not put pods on it. I was just looking for advice on jets and tuning procedures for our Hitachi carbs. I'm used to Khein and Mikuni

Update on the pod tune:
I have ordered the 124 mains and 42 pilots.

 

I believe you Kawasaki had flat slide carbs much easier to make work with pods. CV carbs are much harder ... one thing you need to fabricate some type of bracket to support the carbs.... do not rely on the boots alone...eventually your boots can crack from the unsupported weight of the carbs.

 

Al, you recently joined this forum, you know motorcycles and have worked on other models.
Very few members of this forum runs pods, your bike your rules.
You seemed to have overlooked an important reply to your original post.

FYI - in my opinion this is advice that should be trusted and believed as Steber has 'been there, done that'.

If you aren't familiar with Hitachi carbs, they are unforgiving to any short cuts in rebuilding/cleaning.
http://xjbikes.com/forums/threads/in-the-church-of-clean.14692/

Keep us updated on your progress.

 

Exactly what DID you do? I Doubt that you sync'd it right if you're running with only the choke on. Also, with it running only on choke, yeah it COULD be just that you need bigger jets, but it IS a regular indicator that something is still clogged somewhere, too. If your not familiar with Hitachi's, follow our questions and give answers.

Big flashing lights, horns, and sirens going off.......

 

Matti said: this should be entertaining.

 

XJbikes is always entertaining.

 

Read it many times...folks think putting pods on will magically make their bike into a hyabusa ... or my other favorite it makes removing carbs easier.... if you do your carbs right in the first place you will not need to pull them off again... (the church of clean) I've also read the frustation of setting up jetting .. and most going back to the stock airbox ...may not have cool factor but my bike runs great and I have not touched carbs for 2 seasons ... I think the engineers know much more than any of us can ever imagine . They had to get bike to put out good horse power as well as meet emisions and acceptable noise levels ...but this your thread it is your bike ..and your$$$ or£££ you can do as you please I just don't want to see you go through some of the issues of running poda. Cheers

 

Pods = Problems = Period

These bikes are not meant to be chopped, bobbed, or podded....

To each his own.....

Some will find out the hard way

 

Some will sell their xj and get a Honda...

and then spend hours poring over the internet looking to replace the xj.

I don't know if I ever mentioned this, but the guy that bought my Seca went with pods. Last time I saw him, he wouldn't talk to me. Lucky him.

 

What bike is?

 

No idea, I only own one bike and it is the only bike I am intimately familiar with.
My XJ is stock.

Al, this is your bike and your rules. Many here don't agree with pods and don't run them because historically anytime pods are put on CV carbs there are compromises made to the performance of an XJ.
There are a few members who have successfully put pods on their XJ's and they are happy with the results. Steber is one of those members... Did you read his reply?

I believe what he is saying is that you need the bike to perform reliably and proficiently before you add pods and start tweaking jets, lest you pull out your hair.

Was your bike kickin' butt and pulling away hard in the powerband range before you put pods on it?

 

It was dead when I got it. I'm starting from scratch and I love a challenge.

 

This is the third bike Ive gotten for <$300 and sold for >$1200. It's my hobby.

 

Most anything with cable-operated carbs, and Suzukis.

 

And a chain or belt drive so it's easier to stretch.

I took the kickstand off my last build just get it that low. Can't stand stock geometry.

 

Harleys

 

But only beginning in the AMF years. Anything older should be left stock, unless it was altered in-period.

 

And then maybe, I just might keep the XJ and also get a Honda ....then I will have choices.......hnmmm...lol

XJ ran well today....it did me right.....XJ750 at 550lbs vs VTX1300 at 750 lbs.......probably just as fast with top end torque & power for whatever the need is.....

Have not sold it yet........just don't think the wife will allow 2 bikes in garage.....but I wear the pants thou....

 

Xs650. Sportster. Vincent Black Lighting.
One of those things is a joke, but once you buy it, it's yours. Do anything you want. I just might cry if you hurt the Vincent...

 

I like my wife in a pair of jeans... Or yoga pants... But if she takes them off, I'm not going to complain.