What did I buy? lol SRX700 2000+ motor in 99 Sled

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Hi Guys,

I am new to Yamaha and I always wanted a SRX700 Tripple! So I had a chance to pick one up for 1000.00 bucks. I had a weak spark and just bought a 99 harness and stator and flywheel. To make a long story short the 99 stator would not fit. Then I started too look at if the motor was a 99 and I found the Cylinders are for 2000+.

The owner before me must have put the 99 stator in the 2000+ motor and used the 2000+ flywheel.

My questions:

1. How do I know what year motor it is, 00, 01 or 02?
2. What harness should I use.
3. What else will I need to change to make this work correctly? Different regulators etc?
4. Will a 2000+ hood with the split lights fit on my 99?

Thank you for anyone that can help. I really enjoy this forum I have learned a lot in a short period.

Marcus
 
00 and 01 are same motor, 02 has DCS (Detonation Control System), use a 00-02 harness with that motor and yes you can swap hoods from a 00-02, it should bolt right on and if you use the newer harness all the wires should hook up
 
Pictures will tell us A LOT. 00+ cylinders aren't that uncommon found on/in a 99 (or 98. If your 100% sure the replacement stator is a 99 and WONT fit you have 00+ cases. Mounting location for pick up coil is different as well as the firing order. 98-99 SRX ignition fires all 3 spark plugs at the same time. 00+ uses the hotter 300W ignition system that has 3D ignition with a firing order. Have you ever heard motor run? Maybe that there is parts in your Frankenstein that don't work with other parts. Your first order of business is to figure out what the stator on/from the motor is (should have a part #, check parts fische at port Yamaha) Then check CDI, Coils etc. 00+ also have TPS (throttle position sensor) that 98/99 did not have. You don't have to change the whole hood for dual bulb headlight, just the gauge pod, windy, headlight but yes the whole does interchange. I would figure out what the highest % of parts you have and replace the rest to match. Even though 00,01,02 basically the same engine they each take a different CDI, 01/02 will interchange but 02 has DCS.
 
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Hi Guys,

Thanks for the help. Looking at the Cylinders it is the 8DN10 and the Flywheel is a F4T369. It had a 98-99 CDI and harness when it was running. Had a really weak spark and we did every test looking to find why. Thought it was the flywheel and I picked up a 99 tonight and it will not go one.

Thanks
 
8DN10 cylinders are 2000-2002 as you already found out. What are the numbers on the blue heads?
So what bottom end and electrical do you have?:
Post up a pic of the sled, we always like to see pics of sleds, especially SRX's
Post up a good clear pic of both flywheels, tell us which one came off the engine and which one you just picked up as a 99.
Post up a good clear pic of the end of the engine, showing the stator and the pickup coil, no flywheel.
I'm sure one of us will have a pretty good idea what you have with these pics.
 
IMG_20140310_233924.jpg

It ran last year and pulled over. Didnt start this winter and had a weak spark. You need to pull hard!!! to get it to show any spark.
 
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IMG_20140310_233950.jpgIMG_20140310_234017.jpgIMG_20140310_234051.jpgIMG_20140310_234102.jpgIMG_20140310_234122.jpgIMG_20140310_234150.jpg

Looking at the Flywheels the flywheel on the right is the flywheel that came with my sled and the one on the left I purchased and tried tonight and will not bolt up. The stator installed is from a 99
 
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What is under your thumb in the CDI pic? The 8DN- ???? part........ Everything else looks 00+ to me. FYI...the rust on the flywheel could be your problem. Unfortunately the only way to know for sure is clean it up and put it all back together.
 
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That was a cdi I took off another 99. Sorry I had my thumb in the way. 8DN-00, I believe the 00-02 only have two connections on the CDI and the 98-99 have the 3 connections.
 
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This is a 99 SRX 700 I picked up a few years ago. RAN GREAT with 7 flashes (power valve servo fault code) Ran GREATER with new stator and flywheel!
 

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I tried the same flywheel tonight and it will not fit. I was really confused and all signs are showing I do have a 99 SRX700 but the motor is 00+.
 
Just took a look at some parts I have in the house. F4T369 is the same number I found on a known 2000 (01/02 use it too??? Don't know) flywheel. Part numbers on engine are 00+. I know to put older motor in newer sled you have to move the pick up coil closer or use a red head flywheel with the hotter ignition system. Seems as though they had 00+ electronics plugged into 99 CDI....seems like this wouldn't work to me, hotter ignition with 3-D firing order shouldn't work with older CDI.
 
Yes, it sure looks like you have 2000+ engine, top to bottom, with the 98/99 stator installed. The issue should be related to the pickup coil mounting boss on the case. In 2000 when Yamaha introduced the high output stator, they used the flywheel with a smaller diameter so the pickup coil was to me moved inward. To do so, the case casting was modified to make the mounting boss larger to the inside.

If you remove the pickup coil on the engine, does your 1999 flywheel then fit? It should. Before removing the pickup, measure the air gap between it and the little metal timing strip on the smaller flywheel, and remember that number or write it down. When your then install the 1999 flywheel, locate the pickup by hand on the boss at the same air gap reference. Does that give you enough meat on the boss to drill and tap new holes? If not you may be able to fill the existing holes with epoxy, then redrill for a helicoil setup in the position you need. Double check everything, including making sure the recoil starter will fit.

Not sure if anyone has done what I have described above, I haven't had a chance to try it yet, but there have been many posts on this site about installing the newer SRX engines in the 98/99 sleds, and the differences that need to be addressed.

If you are able to get everything squared away on the engine with the 1998/1998 stator/flywheel/pickup setup, then I don't think you need to change anything with the sled's electrical wiring or CDI or ignition coils, if it all original to the sled of course. Do you have TPS on the carb rack (at the top of the PTO end carb)? You don't use it unless the sled has been converted to the later electronics and wiring. You will want to keep an eye on how well the engine is running if you don't know what carbs and jetting are in there, or other mods as well. Keep checking the spark plug color and look down the hole at the piston color/wash as best you can. If you've never done a compression test on the engine, do it now so you have a baseline to compare to down the road, and always do your compression tests the same way.
 
Just want to add that you should blue loc-tite every bolt/screw in there. That is what lead to my issue. Previous owner didn't loc-tite anything and pick up coil bolt backed out and bounced around in there until the day after I bought it.
 
what you have is a 2000-02 engine in a 98-99 ign. system-cdi.etc. so the 98-99 flywheel will NOT fit on the case because the diameter is too big and it hits the boss that the pick up coil bolts onto. To use the flywheel on that case youd have to grind the boss away to clear the flywheel and then make new holes for the pick up coil.
so what you can do is use the correct 98-99 stator and use the 2000-02 flywheel...HOWEVER you need to grind off the extra magnet for the pick up coil. Youll notice it has 4 exterior magnets, the 98-99 only uses the 3. Grind off the small one its in between the 3 long ones. This is why it has weak spark, because your tripping the cdi box a extra pulse and weakning the spark.
 
the 2000 srx is a one off wiring harness/ plug to cdi. won,t work with a 98-99 setup and won,t work with a 01-02 set-up. now your useing 99 stuff complete so you be good with changes don posted. 3:16 (yammie tony)
 
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