I jus got a great deal on a BRAND NEW 2005 DRZ 400E. It is a 49 state model with the FCR39. This thing is a virgin.:ride: What immediate mods should I do to get this thing to optimal performance. Keep in mind that I'm not willing to go Big Bore on the new bike. I'm waiting for the MRD pipe to be available for the E model so I can get rid of the boat anchor that it has on it now. I'm hoping to see it before next spring. :thumbsup:

But, for now, can I unplug the factory pipe and do the 3x3 mod without rejetting the factory FCR? When I get the pipe, what jetting is needed? What else can I do?:excuseme:

Thanks...

Just remove the intake snorkle and jet it, it should already have a 3x3 opening in the airbox, modding the stock exhaust just gives more noise. Spring it for ayour weight add skids and guards etc, grease all thepivots and enjoy!

What he said....:ride:

Plus get some real bars, or wait to you bend the standard ones (first time you drop it), When I rejetted we put on an FMF slip on, more noise and less weight, also looks way better IMHO. Depending on your weight you might want to re spring...

Goes fine, for trail riding I do not need more HP from big bore etc.

Does everyone here go with the JD Jet Kit? Will I need specific jet sizes for my location? (Yakima, WA about 1500' above sea level) What is involved in changing the jets? Does the kit come with instructions? Will I be too rich if I rejet without the new exhaust?

Thanks...

No need for a jet kit. One size up on the main, put the clip on the 3rd position (assuming it has a ODPX needle in it already). Swapping the main requires removal of the cap on the bottom of the carb. The needle, two allen bolts on top, then an allen fastener on the slid, the top of the needle will be right there. Might want to get an extended fuel screw to make life easier too.

OK, I'm a total jetting rookie here. What is "one size up on the main"? What size is the main from the factory? Where do I get the new jets if not in a kit? Did anyone ever post a step by step for jetting an FCR with photos? It may seem simple to some but I don't want to start tearing stuff apart without some trusted direction.

Thanks in advance...

I bought a 2006 E that I rejetted just a few months ago. I didn't buy a jet kit. While a jet kit does include a custom needle, it also only has std Keihin jets. IMO, what you gain from the custom needle is not worth the extra $60 or so.

You must rejet if you do any intake or exhaust mods or the bike will run terrible. You should rejet, even if you don't.

For people to help you, you need to let us know what your setup and riding conditions (temp, elev above sea level) will be. If your setup or condtions are different than what I have below, respond to this thread, and we'll help you out with any changes you may need to make.

Suggested setup for up to 3000', stock exhaust, and 3x3 (snokel removed) is as follows:

155 main (up from 142 stock)
45 pilot (stock)
5th clip OBDXP or OBDYP needle (OBDXP or OBDYP 4th clip is stock)
*Optional 3rd clip OBEMN or 4th clip OBEPN for even better performance
2 turns out on fuel screw (1.25 stock)

Sudco, which has a minimum order, will make you spend money for parts you don't need. Therefore, I suggest you order from a Yamaha dealer. Part numbers are as follows:

4MX-14943-38-00 155 main
5NL-14916-PN-00 EPN needle

The jet will be about $6 and the optional needle about $14.

I would also get and install an adj fuel screw while you have the carb out. It will make it much easier to fine tune the pilot circuit. It can be had here and you want the $20 model: http://www.kientech....dFuelScrews.htm

RaggedJoe said:

I've been thinking about a FMF Q slip on for my 06' E.......did you not see any increase in bottom end torque with the pipe?

"Seat of the pants" dyno registered a definate improvement, but I also de-snorkled and rejetted at the same time.

Eddie will tell you there is no power increase from a slip on and I defer to his real dyno.:worthy:

All I can say is that power wheelies in 2nd are no problem now (apart from a couple of near flips:eek: ) and it is a pleasure to ride off road. Plenty of power for trail riding and I did not buy it to race or to ride on the road.

FMF Q2 sounds better, is lighter and looks better than stock. IMHO

Eddie Sisneros said:

OK Eddie, now where do I get the parts if not in a kit?:excuseme: I just purchased the TT jetting tool kit which claimed I could rejet in "Minutes" without pulling the carb. Any truth to that? (It looks pretty crowded in there) I dont want to do more damage than good by messing around without some instructions or diagram:eek: There is a local guy that seems pretty honest and skilled. He wants me to go with 2 brothers slip-on (he's a Two Brothers dealer; go figure). He's talking around $140 in labor to install the pipe and rejet for it. I'd rather wait for the MRD pipe for the E version and rejet it myself so I can spend the $140 on other new accessories. I'm just concerned because I've never done it before but figure I could learn for $140:thinking: Would it be OK to pull the snorkel and leave the factory jetting until the MRD Pipe is available or does that snorkel mod mess with the fuel/air mix too much? I'm not likely to do much riding here once the snow starts to fall (Next Month usually) which will give me the off season to hold off until Dave gets the E Version pipe done and I can then jet the bike for the MRD. Will that be different than say for a Yosh system? I just want to avoid doing the work more than I need to.

Thank you for your FREE expert advice!!!:worthy: :worthy: :worthy:

Eddie Sisneros said:

Ouch:banghead: Did I just waste $37 on a tool kit that won't be any more useful than tools I already have!!!??? The selling point for me was "in minutes without removing the carb".:rant:

Having said that, I'll see if TT will pull that from my order. I don't think they have processed it yet since I placed it this afternoon (Sunday).

If I decide to go with a kit, which one and what does it come with? Does it include multiple sizes so I can use the 160 main with the stock pipe and still have the 165 when I go with the MRD? What about the pilot and needle options?

Eddie Sisneros said:

Eddie, it's my understanding that this is a 2005 E with stock FCR, stock exhaust and 3x3 at 1500'. I thought the following applied to that scenario:

155 main (up from 142 stock)
45 pilot (stock)
5th clip OBDXP or OBDYP needle (OBDXP or OBDYP 4th clip is stock)
*Optional 3rd clip OBEMN or 4th clip OBEPN for even better performance
2 turns out on fuel screw (1.25 stock)

That's what you recommended to me previously and what is given here: http://www.thumperta...=649485&garpg=3

For my own understanding, why are you recommending the above? Perhaps you have new dyno data showing that's not the optimal combo anymore? Thanks.

BKKoffroad,

AFAIK, you can't buy a kit that will have all the jets/needles you need. The JD kit has multiple mains, but even it doesn't come with a 48 pilot IIRC.

I gave you the Yamaha part number for the EPN needle previously. You can order from other places, but most will have a minimum order and you'll pay excessive S/H, too. If you order from your local dealer, you will save money. If, in fact you need the 48 pilot and 160 or 165 main, those part numbers are as follows:

3TJ-14948-06-00 48 pilot
4MX-14943-39-00 160 main
4MX-14943-40-00 165 main

OK areyou4real, thanks. I'll go that route and set myself up with and without the stock pipe. I'll try to post performance results as I make changes. Still looking forward to the MRD pipe...

Eddie Sisneros said:

OK, I'm almost there...is 5th Clip 5th from the top? Is 1.5 turns 1.5 turns CCW from all the way in?

Thanks

Just bought a brand spankin new leftover 2004 E

Eddie, should i do the same setup as described above - is the '04 the same ??

Do exactly as you stated for my '04 ??

Thanks !

ps - i sold my '07SM this spring and bought an '08 Suzuki Bandit 1250S. This forum ROCKS compared to others so i just HAD to get another DRZ !!

Looking for a street legal frame and title so i can plate the E