Timming sprocket FE 501 '97

The sprocket from a 04-08 is a direct bolt on with no modification needed. It is a nice upgrade as it is steel instead of the soft aluminum stock sprocket. You may need shorter cam sprocket bolts.

Taffmeisters - Husaberg, KTM, Husqvarna, Gas Gas, dirt bikes - servicing, tuning, rebuilds, parts

then don't do it fella OK?

get a steel sprocket new or used from any 2003-2008 bike. they all bolt straight on OK?

regards

Taffy

Hi Tempest

I don't have a sprocket to measure so just from the cam and bolts you need

7.9mm diameter holes

49.5mm center to center

can't help with the angular positioning to any great degree of accuracy but I suggest starting on an axis 88 degrees to a line between the 2 marks on the old sprocket

you should also consider the alignment of the upper and lower sprockets

install the sprocket, cam and cam chain/tensioner and either degree the cams or just set the lobes symmetrical by eye.

when the lobes are pointing up you should be able to put a straight edge on top of them and the straight edge should be parallel to the top surface of the head.

to adjust this you will need to elongate or "slot" the holes (can be done with a file)

also check piston to valve clearance with clay as a matter of course

have fun

i reckon that your engine is older than a 1997? can you give us the 10th digit of the frame number? *&^%$ *&^% (here) the 10th please?

Taffy

O.K. its a 1997.

Reasons why you should use the 04-08 steel sprocket instead of an aluminum one of uncertain origin.

1. You won't have engine issues by drilling it wrong

2. You will get less oil contamination as the aluminum sprocket wears down.

3. The aluminum sprocket wears out fast. That's why they went to steel in 2003.

4. The cam chain will last longer as it won't be subjected to a worn sprocket.

5. The steel sprocket is "handed" so that it can be turned over to help facilitate alignment with the lower sprocket. Especially helpful if you want to run a less brutal (for the valve train) KTM cam.

6. When KTM discontinues the part you will have wished that you had bought two or three.

7. It fits 1997-2008. Its versatile.

8. People that frequent this site will think that you know what you are doing even if you don't.

9. Its better than your moms Pierogi.

tempest

what Husabutt said BUT also:

the shoulder of the 1997 cam is 32mm. this is also the size of the hole in the cam sprocket. please confirm that you have a 32mm hole?

Taffy

Taffy said:

tempest

what Husabutt said BUT also:

the shoulder of the 1997 cam is 32mm. this is also the size of the hole in the cam sprocket. please confirm that you have a 32mm hole?

Taffy

Click to expand...

can you help with this?

Taffy

Sprocket 80036011100

Screws (2) 0984080103

Autodecompression shaft 59036016000

Spring 59036017000

The sprocket teeth are the same. Use the new style decompressor. Its way better and I believe your old one may be slightly too long (at the shaft) as the new cam sprocket is thinner where it bolts to the cam but the teeth are the same width.

I used this set up with my 97 600 plus I used a KTM RFS cam.

http://husaberg.org/mechanical/18078-07-ktm-rfs-cam-97-600-

a.html

I initially ordered a KTM cam sprocket which is the wrong size for a Husaberg.

Taffy sells all of this and has a modified decomp spring which works very well.

One thing when switching up parts is to measure, measure, measure. Get yourself a good pair of calipers. Taffy wants you to measure the cam shoulder for good reason.

This is the KTM cam that I used 59036010000. I needed to flip the cam sprocket over and remove the decomp stopper to get near perfect cam chain alignment as the KTM cam was 2mm longer than the Husaberg cam.

You will probably want to change the waterpump seal while you are in there. The 04-08 seal is a tight fit but works. Put the seal in the freezer and the heat the holder up. I keep a lot of these seals on hand as I am always screwing them up. I was tapping them in with a socket but these new style seals have a very thin metal casing which does not give you much contact area with a socket. Most recently I used a vice to press the seal in and then tapped it in the last few mm's or so. One of these days I am going to buy a cheap shop press.

Taffy and Bushmechanic were both a great help when I was doing this.