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February 19th, 2016, 04:32 PM   #11
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Originally Posted by WArdogG View Post
Bushie, was it Spanner who was busy making a different shaped tensioner blade for the cam chain? I was wondering about doing the same, since I have the same issue, new DiD chain has 2 or clicks left on the tensioner. Which means I effectively only get like 50hrs or so before the tensioner is maxed and I have to replace the chain...or make some other plan to support the chain a bit better to get more life out of the chain.

Extending the tensioner is a no-go, since the chain will start rubbing on the water port if extended beyond the standard reach of the tensioner.

I have an idea there, but I will try it first and see how it turns out
Yes it was spanner. Also fd racing made a set up with 2 tensioners. One in front of the engine and one behind it helped to adjust cam timing

You might be able to use a thicker head gasket and a taller piston
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February 19th, 2016, 05:42 PM   #12
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February 19th, 2016, 08:24 PM   #13
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The KTM RFS sprocket is on the right.

Husaberg sprocket (1997): 30 teeth 5.3mm wide
KTM RFS sprocket (2007): 36 teeth 4.0mm wide

When I put the RFS cam in my 97 600 it was about 2.00mm longer where the sprocket bolts up to the cam. Obviously KTM did this to make up the difference for the thinner sprocket. I used a 04-08 Husaberg cam sprocket and turned it over as it is handed or dished out like the KTM sprocket. This set the sprocket back enough for decent upper and lower sprocket alignment. Thanks to Taffy and Bushie for their help on that.

As parts for the gen 1 motors are getting a bit scarce it would be a nice upgrade if someone put together a kit using the KTM sprockets and timing chain. The smaller lighter chain would probably give a little performance boost.

Bahnsey the answer to your original question #3 is as far as I know yes.
Attached Thumbnails
1989 to 2004 Timing Chain and Cam Gear-cam-sprockets-232.jpg   1989 to 2004 Timing Chain and Cam Gear-cam-sprockets-235.jpg   1989 to 2004 Timing Chain and Cam Gear-cam-sprockets-236.jpg  

Last edited by husabutt; February 19th, 2016 at 08:32 PM.
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February 22nd, 2016, 07:17 AM   #14
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Originally Posted by husabutt View Post
The KTM RFS sprocket is on the right.

Husaberg sprocket (1997): 30 teeth 5.3mm wide
KTM RFS sprocket (2007): 36 teeth 4.0mm wide

When I put the RFS cam in my 97 600 it was about 2.00mm longer where the sprocket bolts up to the cam. Obviously KTM did this to make up the difference for the thinner sprocket. I used a 04-08 Husaberg cam sprocket and turned it over as it is handed or dished out like the KTM sprocket. This set the sprocket back enough for decent upper and lower sprocket alignment. Thanks to Taffy and Bushie for their help on that.

As parts for the gen 1 motors are getting a bit scarce it would be a nice upgrade if someone put together a kit using the KTM sprockets and timing chain. The smaller lighter chain would probably give a little performance boost.

Bahnsey the answer to your original question #3 is as far as I know yes.
split links aren't available in the smaller chains and that could get expensive what with knocking links off all the time.

also, the '53' chain is 16mm before you get back to exactly the first link pin and start a pair of links again.

so the height of the cylinder head has to be right within an 8mm 'lucky' range. unfortunately - it isn't! your one half of a link short.

regards

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February 24th, 2016, 12:50 AM   #15
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Hi all

Since you've started talking about cam chains, I've started to have nightmares and earing sounds on my 400-02 engine, that I put a lot of hours every year.

So I went to check my chain yesterday and I still have 5 clicks on the tensioner, after more then 5 years of use

I have to say I have the newer tensioner blade.

So I have to put here a good word for the IWIS cam chain.

Any of you think that after all this time, I should change it anyway ?


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February 24th, 2016, 04:06 AM   #16
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Hello Zaga

I think there are 16-17 clicks and you don't lose any when you fit them on some bikes, others you lose 5 clicks. so do you recall whether you had to stuff the CCT in Zaga or did it use 4-5 clicks up?

this will give you a more honest indicator!

cam chains on offer here from the 1st of March at 36 down from 46. that is for the whole of March. we're going to do all that sha-mooz stuff now! not my cup of tea but hell.....

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February 24th, 2016, 05:13 AM   #17
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Hi Taffy

From what I remember, with the new blade, I think I used 1 or 2 clicks max.

Not sure but I remember it was tight.


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February 24th, 2016, 06:11 AM   #18
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so you have used 7-8 clicks tops. the best thing to do is to hold the chain on the sprocket and pull two ends around the back so it is tight and then try and pluck a link up from off the sprocket teeth.

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February 24th, 2016, 08:05 AM   #19
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Hi

No, if you say it has a total of 16-17 clicks, I has stretched at least 13-14 clicks.


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February 24th, 2016, 08:15 AM   #20
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16 clicks new. you lost 3 when you fitted it and it is on 11 clicks now because you said you have 5 clicks left. 3rd to 11th click equals 8 clicks.

anyway, I guess I misunderstood somewhere!

Taffy
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