Jet Kit

Anyone know where I can get a Jet Kit for my 1993 XJ600 SECA II?

I found it on DynoJet's website but it's like $120!!! It has to be out there for a more reasonable price.

A guy I met said he got his for $25!

If anyones knows a place, let me know. Thanks!

 

I've got a jet kit on my 82. Wish I didn't. Synching is a bitch. I'd probably be faster with a stock setup, since the synch would most likely be dead-on. If we were able to, I'd trade carb racks with you so I could get rid of this nuisance..

 

Wow..really that bad huh? You sure it was installed correctly? I mean the all the adjustments, float levels, needles, etc...? If you didn't install it...might be worth opening up to double check or have your mechanic check.

Also, and I've been told this so don't quote me but after a jet kit is put in, you should change your air filter to something like a K&N to let more air in to compensate for the extra fuel that will be getting through or the bike will run too rich. (Too much gas, not enough air).

I've never heard of a Jet kit actually making the bike run worse. Geez. That suks.

 

crewwolfy - if the jet kit made it worse, something was done wrong. I notice in your sig you list having pod filters - I'd lay real money down that they're your cause for having tune/synch problems.
I've got the Stage 1 kit in my bike, drilled the slides as instructed, and as I've got a K&N air filter in stock airbox and aftermarket exhaust - it made a huge difference in how well my bike runs.

If your bike has stock air filter and stock exhaust, you shouldn't 'technically' NEED the jet kit. However, jetting it doesn't necessarily mean that you HAVE to change the air filter either. It's a whole package thing between the air intake, carbs, and exhaust.

Basically if you haven't jetted the carbs, your ability to tune for other things like changing the air filter or exhaust is limited, or non-existant.
If you have changed either of those, you likely need the jet kit to get back into a good state of tune.

 

I've got the adjustable needles and some K&Ns, but aside from that I really don't know. I imagine it was installed correctly, but I can't be sure. But no, I certainly don't think a jet kit would make it run worse. Just more difficult to dial in. And if it isn't dialed in properly, then I could see it running worse than stock. Right now I get bad stuttering from 2500-3K rpms, and I've synched the carbs twice now. Not to mention the K&N's make life difficult when the rain comes.

I'm looking at superchargers and coilovers for my mustang, but I think my bike is plenty quick for me as is. Might not be the case for you, that's cool. Just thought I'd throw an opinion out there.

 

Uh boy..maybe I should just leave mine alone...hehe.

 

Altus, I really don't know what I have (or do not have). It was installed before I bought it. Didn't even know until Chacal told me when I was ordering parts from him. Perhaps I shouldn't say anything until I'm a bit more knowledgeable on my own setup..

Sorry for hijacking this thread, PepNYC

 

PepNYC,

Why do you need to rejet? Are you using an aftermarket intake or exhaust? If you are sticking with the stock intake and exhaust, rejetting is unnecessary.

 

PepNYC,

Just to throw my two cents in, my bike ran pretty good even though I made changes to the exhaust and put air filter pods on. I bought a jet kit ($120.00) anyway to try and get a few more Hp. Still working on it but I think by the end of the summer I'll have the horsepower I was looking for (5-8 more Hp).

 

Well, eventually I was planning on getting an after market exhaust. Figured I could get a few more HP out of the jet kit and it would solve some of the cold starting issues.

 

PepNYC,

A jet kit will not help with cold starts. Jet kits are made to change the main jet which is for higher RPMs.

The cold start problem is very common with older bikes with carbs. Guess I'm lucky my XJ starts so easy and I live in TX. I did have a problem when we rode to San Antonio and the battery would not hold a charge, I had to start pushing it 5' to 10' to start it. Just wondering if the battery is cold maybe it doesn't turn the bike over quick enough to start. Maybe if someone with this problem could try a cold start with a battery charger or battery warmer. I would like to know if this would work...?

 

I a=have the same 3,000 rpm stutter. Ive had my carbs apart 6 times and cant find a problem. I have a 4 into 1 Jardine exhaust as well. 4300 ft. elevation. Stock jets 120/40.

Let me know if you ever ditch the stutter.

 

She'll start up ok. Just takes forever to warm up enough to ride without sputtering. I figured I could clean the carbs and jet them at the same time thus cutting down the warm up time and gaining some horsepower. Maybe I'll just take em apart this winter and give em a good once over and a cleaning.

Having said that, can I just use the same needles and stuff? I mean, I know when I used to do carbs on a car, I'd get a whole rebuild kit with all new needles, seats, gaskets, float, etc... Everything got replaced. Is it not the same for motorcycle carbs?

 

I bought a DynoJet kit for the xj650's and the high RPM's had an unbelievable amount of power. But I was running too close to the red line and didn't want to burn the motor up. Tuning in a jet kit can take a while, mine came with four set of jets and adjustable needles. Doesn't come with seals, gaskets, and floats.

Colortune kit is more important than a jet kit, and is also needed if you get a jet kit. Even though my bike starts easy and idles pretty good, I found that one of my carbs is no giving any fuel at idle. Thanks to Colortune.

 

Be aware, awhile back Djet issued a statement of counterfeit jet kits being sold on ebay.

The jets were poor quality.

 

Yes, I heard about that. Thats funny you mentioned that because I just saw a kit up there for about $30 less than the DynoJet website. Wonder if they are fakes? Hmmm.

I know there is a write up out there somewhere that tells ya how to spot a fake from the real ones.

 

The stampings on the jets indicating the size's were different.

 

Colortune is the backyard mechanics best friend, but if you wanna get through the rejet and resynch less painfully get your bike on a gas analyzer.

 

Gwyndwr,

Nice bike you have... I don't think a gas analyzer would of found that one of my carbs was not getting any fuel at idle. But with an analyzer there is no guess work if it is setup right. I just don't think its the best to find a problem.

to each his own

 

Rejetting will not help with cold starting or warm up. Carburated motorcycles take time to warm up, it's the nature of the beast.

Unless you've already added a freer flowing exhaust or plan to add at the same time as the rejet, rejetting will not give you any benefits and will probably cause more headaches than anything else.

I'd suggest you hold off on rejetting until you are ready to add the new exhaust.