Good source for Dynojet kit?

Can anyone suggest a good source for a Dynojet kit, I need # 4101 for the XJ1100. I've seen a few places with a reduced price for "Christmas" but would like to get one from a known reliable source and at a low price. I looked at Chacal's parts list but Dynojet didn't come up.

Thanks

 

I found this. The price not so whoopie but there ya go.

What exactly does this do to the carbs?


http://www.dynojet.com/pdf/4101.pdf


This is the full site where I found it.

http://www.dynojet.com/jetkits/motorcycle/yamaha.aspx

 

or just get the same jets from chacel but without the springs and the bs drill to to drill holes in your slides

 

In all honesty? It depends on what other mods have been done to the bike, but it generally makes it harder to get tuned right. And I don't recommend drilling anything. If the "mod" can't be reversed with no damage, then it's not a viable mod from my way of thinking.

But then once a bike is finished, I like to be able to RIDE it and not continually mess with it.

 

Before you decide to buy a DynoJet Kit and use it to attempt to cure the ills of a Bike that's not running the best, ... take a moment to read the smallest print on the package.

Before you can add ponies to the Total Performance Package with a Kit; you need all horsies in the corral that came with the ranch.

If you aren't already tuned-up and dialed-in, ... the Kit will just make life miserable trying to Fine Tune an Engine with its Fuel Ratio altered when the Air Ratio is what really needed to be addressed.

 

The basis for my interest in a Dynojet kit is a PO removed the stock exhaust and put on a 4-1 exhaust and the old ones did not come with the bike. from all I have read, changing the exhaust from stock to a 4-1 means you need to rejet. As I don't have a stock exhaust from day 1, I accepted this rejetting requirement when I bought the bike.

The stock filter is oil fouled and paper OEM NOS filters are all that are available for the XJ1100 airbox. I do not wish to use paper filters that have to be replaced. Pod filters are available and are inexpensive to clean and re-oil but like the aftermarket 4-1 exhaust, using them also requires rejetting. Since I already have to rejet because of the mufflers I picked up a set of pods.

While I have to re-jet to not be overly lean, I really don't want to keep trying one set of jets and then another, to try yet another to eventually find a combination that works. Rather than put in the time to re-invent the jetting wheel, I'd rather buy a Dynojet kit designed to work with my bike and my intake & exhaust & be done with it.

It would have been easier if the bike was stock and the filter issue wasn't an issue. Sigh...

 

Yes, I am there too with the exception being I do delight in keeping on top of having proper valve shims and I like keeping the sync in line using the colortune & Carbtune. I want a working carb that gives me max MPG efficiency and treats the engine well. I'll recheck the sync when the bike sounds unusual, easy & fast. Not a time wasting biggie. Neither is the colortune.

 

That falls under "maintenance." Valves DO need to be rechecked every 5000 miles, I do mine religiously.

And of course, any time a valve adjustment is needed, a re-sync is called for.

But your thread was about the Dynojet kit. All I can say in regard to your plans is this: The Dynojet kit cannot be counted on to rescue you from the tuning nightmare that pod filters will bring on.

Personally, I would keep the stock airbox; the Yamaha "paper" filters last quite a while, you just blow them out from the inside. Then I would get the bike properly tuned, valves adjusted, floats set, etc., and SEE what carb work is going to be necessary to compensate for the pipe alone.

Then based on Len's "mods vs. jetting" chart, I would rejet accordingly. Depending on the pipe, it could range from nothing to say, one-size bigger pilots or simply raising the needles. Just because the Dynojet is a "kit" DOES NOT mean it's plug-n-play by any stretch.

And I still stand by my "don't drill any irreplaceable parts" edict.

 

Please keep the stock airbox, I expermented on mine with pods, it is a nightmare. My recomendations are to :
1) Either by a new filter or Replace the filter paper. The XJ filter is a metal frame and the old paper can be replaced with a washable filter media. I've done it on mine and 2 others. Its not hard, just be careful removing the old glue. It softens with some heat.
2) With your 4 to 1 exhaust go two sizes larger on the main jets. Stock size is 112.5, install a 117.5
3) the stock pilot jet is fine leave it
4) adust your valves then tune carbs
Ride and enjoy

 

Just got mine for the 80G XS11 from Dennis Kirk. They have free shipping for orders over $25. Plus they will beat any advertised price by $1.

Last week I found the kit at monkeybuttparts.com for $105, arrived from Dennis Kirk yesterday for $104.17.

I looked today and Z1 Enterprises has it for $95.77.

Check out the low price guarantee under the price at Dennis Kirk. Should be able to get it for $94.77.
At that price, I'll probably be ordering another one for my Venturer. Biggest advantage is the adjustable needle as the ones on these 2 bikes are fixed.

FWIW I'd keep the airbox as well.

 

Oh I'm absolutely keeping the airbox, I'll keep anything that's original in case I someday sell the bike and the new owner should get all the parts with it. But how to get that back in the bike is a mystery to me as removing the rubber components was horrible to do, much harder than the XJ650J by far. The rubber components are larger on the inside than on the outside, especially the air horn on top which is like twice as big inside as where it joins to the airbox. to get those rubber parts out in while the airbox is in place is a nightmare, I can only imagine what's needed to do to get them back in place.

The airbox really should have been made in two parts, fore & aft sections & held by screws or latches to facilitate removal of the carbs or access to the area below the carbs.

Thanks for the pointers where to get good deals, that's wonderful. That's a pretty good deal too.

As to the nightmare with pods, I've read a lot about that here so I don't doubt the issue has merit. I've also read about those who are thrilled to have them and love how their bike runs. It seems to me that with a given engine, carbs, exhaust and intake system and properly adjusted valves... there is then a likely reproducible set of jettings that work beautifully so as to not damage the bike and yet give excellent results. With that, someone with a XJ1100 who has pods and a 4-1 and has worked out the required jetting, if they offered here what those values are, the results are probably reproducible on a similar XJ1100 and further experimentation is not likely.

Maybe not...

 

I have spoken to several guys with years of experience regarding the Yamaha XS and XJ1100's. Yes, there have been some horror stories, but for the most of the owners I have spoken to. absolutely love them, and once you change, won't go back. I too am changing to pods, dynojet and stock exhaust. Good luck