PODS

I just purchased some pod filters and I wanted to put them on my 83 XJ750 to get rid of the airbox and give it more of an authentic bobber look. The problem is the more forums I read on here the more I'm hearing that it's a huge pain in the @$$.

I was wondering if anyone on here has had any luck with putting these on and getting the bike to run properly? Also, how much of a head-ache is this operation going to be?

I ride this bike as my main mode of transportation so I don't want to jump into something that's going to leave me heel-toe, heel-toe'in.

 

Up the main jets 3 sizes & 1 on the pilots, it won't run like a stocko, but it will run.

 

keep the stock airbox to carb rubbers and affix them into the pods instead of using the pod rubber. I have had excellent luck with that, jet it up, and colortune. A pic of comparison is located in my signature.

 

Calling all POD people - - post your results here \/

http://www.xjbikes.com/Forums/viewtopic ... art=0.html

 

I bought a set of pods awhile ago.....they sit in their boxes, unopened, on the shelf. That way there's at least one set that can't desecrate another bike.

Dave

 

I'm not sure what all the hype is about. It sounds like there are some success stories around here as well as tragedies. I guess the first step is getting the bike in proper running order first.

With that being said. I've got a problem with the idle on my bike. I haven't done any testing or anything any I haven't tore into the bike seeing as it's running.

The problem is that when it's cold I have to hold the throttle open just a tiny bit to keep it running, and when the bike is warm it idles right around 1200-1500. And when it's cold if I open the choke it suffocates it and when it's warm it makes the motor race (which sounds normal). Is this just another case of dirty carbs or something more in depth?

 

Carb cleanliness, float levels, sync. Any or all of these; plus get your valves in spec first.

Remember too, the "choke" is not; it's an enrichening circuit that dumps extra fuel in.

Start a new thread (with your bike info) if you need help sorting it out.

 

First of all, i apologize for my bad english...

Personal experience : I did a complete cleaning of the carb, Put the pods, enjoy the nice look, and that's it!

But i would recommend as streetbrawler750 said :

my pod rubber did not last for a long time... I'll try this trick as soon as this d@mn winter finish !

 

that looks lovely and clean but did you mark it all so that everything goes back into the carb it came out of ??

 

OMG Dude-you're gonna start a war here if you mention 'pods" LOL! I've tried for years to get my 750 running right with pods, virtually every combination possible. I could literally remove & install the carbs blindfolded. The best result I've come up with is a real flat spot around 5K or so. Now after reading the countless threads here I'm worried about overheating due to lean conditions. As the others before have said' it will run but its a guessing game to get it running right. Its a matter between looking cool & ultimate performance. Ifyou have good luck please keep us posted.

 

Lol I am back, gone for the winter killin deer. I just put the pods on and rigged up a mock tank. Runs like striped a?? ape. :evil: I. Dot have exhaust either cut the pipes off cause the bike is too low. I will post pics soon as am typing from my phone. You will lose daily drivability but if you are just buildin rat rods. Its all good, remember smile everyday it could be your last

 

Thanks, that was my first post and it's great to be welcomed that way!

No, I assumed the parts were interchangeable... It works well (maybe luckily).

However, it's true that the fuel mix look lean as my bike's motor is getting really hot. But I don't have any reference to assess if it is too much...

 

I did thought about the pods problem.
If the change in air restriction is the only problem when installing pods, and if all we want is better look, not increase of airflow.

There is probably a way to calculate or to find the original airbox airflow restriction.
Then, to calculate or to find the pods airflow restriction.
Finally, to build a air intake equivalent to the original...

Any tips or rectification about it?

 

That is because the pods change the intake tract length. A shorter inlet to the carb changes the powerband. Now if you put the stock rubber boots on it gives the proper factory engineered length. Google intake tract tuning, I don't have all of my sources handy. I will be dyno testing my theory coming this summer.

I wouldn't worry bout melting down the engine while using the factory rubbers, I pulled my motor down to fix the starter clutch and after 3000+ velocity pod miles the pistons/valves had absolutely NO signs of hot spots or lean condition. Whatsoever. Period. And I ride hard.

As far as the carbs taken apart there, they don't need to go back to the original holes. No worries.

 

Yes there is - it takes a $5.00 roll of clear 1/4 inch vinyl tubing.
Bend-up a coat hanger and attach to your handlebars.
Mount the tubing in a little vertical loop with several inches of water trapped inside.
One end goes into the crankcase breather entrance to your stock airbox.
The other needs to go where the still air is, under the seat, with the end in a loose rag to prevent any cross-flow.

While riding and twisting the throttle, you will see the 2 water columns moving - each inch of difference is 1/27 th of a PSI. Mark your highest reading with a bit of tape. Now test without the filter.

Unfortunately, you have to cut a hole in a POD or precious carb body to note the difference (or make a short adapter ring with a hole !)

 

Hey-very interesting info, Brawler. I just may try this cuz Im really dreading having to pull the motor just to get the airbox back in (i aint gonna cut it & re-glue it). Thanks alot for the idea-Go Vikes, LOL

 

Haha vikes, what a sad deal they are lol

 

Hey guys !

I'm probably not the first one to think about it, but :

1. The problem with pods is that the fuel mixture is lean;
2. The choke is a mixture enrichment device;
1 + 2 = Why not keeping the choke a little bit open to get the good mixture ?

I do run with pod. I know that my fuel mix is lean as i feel that my bike is less powerful. But since I let the choke like a quarter open, it run great.

Is it bad for my bike to run that way? Do you have any advise? Do someone else has tried it?

 

Don't want to add to the drama but I do believe my moded pods and insert breather tubs are working great I believe all I have to do now is do another full tune of sync and valve adjustment and I think I got the right mixture set up. As I stated in the other post it's a work in progress but by flipping the tubs and not sealing them I believe it's good. When I finish this last 500 mile test ( have put 1000 on with testing cruising and just plan beating the pants off the engine it's good). I will publish my finding and conclusion.

 

Stock jets. Colortuned and vacuum synced. and for sale.

http://youtu.be/Q7yDiT0-Bq0