Husaberg
Go Back   Husaberg Forum > Mechanical and Technical > Mechanical

Mechanical Mechanical Forum - spinning bits and gyrating bobs


Reply
 
LinkBack Thread Tools Display Modes
June 30th, 2008, 03:03 PM   #1
Senior Member
 
Joined: Nov 2001
From: Ely, England

Posts: 16,017
Thanks: 494

I Ride: Husaberg FE501e 2003
starting - finally cured

arkley123 has had his FE501 for a while now and always found it a pig to start. last week he fitted the dutch clog decomp with the modified decomp spring (as per photo) had the "Taff's crescent mod" done and a new sprague bearing.

the bike has the original starter motor but does have the YTZ7S gel-cel battery. The bike starts first time! He may well get the R6 starter motor but on the 501 the decomp resistance is low enough not to worry about it!

i think we've finally licked it lads!

regards

Taffy
Taffy is offline  
 
June 30th, 2008, 03:17 PM   #2
Senior Member
 
husabutt's Avatar
 
Joined: Feb 2003
From: Escondido, Ca. USA

Posts: 3,103
Thanks: 329

I Ride: 2005 Fe450,2001 Fx470,1997 Fx600
What was the first year for the dutch clog decomp and will it fit right into all models 01 and up without modification?
husabutt is offline  
June 30th, 2008, 06:48 PM   #3
Moderator
 
Joined: Oct 2002
From: Sunland, CA

Posts: 3,117
Thanks: 19

I Ride:
Re: starting - finally cured

Originally Posted by Taffy
arkley123 has had his FE501 for a while now and always found it a pig to start. last week he fitted the dutch clog decomp with the modified decomp spring (as per photo) had the "Taff's crescent mod" done and a new sprague bearing.

the bike has the original starter motor but does have the YTZ7S gel-cel battery. The bike starts first time! He may well get the R6 starter motor but on the 501 the decomp resistance is low enough not to worry about it!

i think we've finally licked it lads!

regards

Taffy
Cracking job as always Taff!!
DaleEO is offline  
June 30th, 2008, 11:27 PM   #4
Senior Member
 
Joined: Nov 2001
From: Ely, England

Posts: 16,017
Thanks: 494

I Ride: Husaberg FE501e 2003
RE: Re: starting - finally cured

well of course now i can call myself an officianado of 1997 todate!!!! (only joking!) but basically the dutch clog decompm is shorter. now if you have a cam with a broad central shoulder so that it is wider than an alloy sprocket: you will need to machine about 3mm off.

if you have a cam that is slim there and only sticks out about 0.25 - 0.5 past the sprocket then its a straight fit. i've done 5 of them from 01 or 02 and this was the first one with the old broad shoulder on the cam.

2 minute job on the lathe!

anyway, i can't do photos as you know so if someone cares to show the front face of the cam with sprocket on at a slight angle we will see the boss i'm on about. the shoulder the sprocket actually mounts on.

regards

Taffy
Taffy is offline  
July 1st, 2008, 05:09 AM   #5
Senior Member
 
Joined: Dec 2006
From: Los Alamos, NM

Posts: 160
Thanks: 0

I Ride:
For the rest of us who don't know their cam widths all that well.

Would this mode work on my 04 FE650? Would it work on a newer FE450?
If so where do I get one?
Hair is offline  
July 1st, 2008, 05:17 AM   #6
Senior Member
 
Joined: Nov 2001
From: Ely, England

Posts: 16,017
Thanks: 494

I Ride: Husaberg FE501e 2003
i thought i'd answered that above. the alloy sprocket was up to 2001. after that it was steel sprocket with the narrower shoulder.

the decomp pokes through a hole to reach the cam lobe. the shoulder used to be broad and so the decomp had a long reach arm. then with the steel sprocket the shoulder was narrowed and a shorter decomp arm was needed.

now if you put this short reach arm on an old camshaft - it's short! the decomp lobe would only just reach the edge of the lobe and the CFB soon chipped the corner off.

i really hope thats clear. maybe you need to go and look at some photos and come back and read again.

i'll send some photos to eric again and maybe he'll host them once again for you.

good luck

Taffy
Taffy is offline  
July 1st, 2008, 08:47 AM   #7
Senior Member
 
husabutt's Avatar
 
Joined: Feb 2003
From: Escondido, Ca. USA

Posts: 3,103
Thanks: 329

I Ride: 2005 Fe450,2001 Fx470,1997 Fx600
Originally Posted by Taffy
i'll send some photos to eric again and maybe he'll host them once again for you.

good luck
Taffy
My gallery is your gallery.

So what year did the Dutch clog first appear? 2004?
husabutt is offline  
July 1st, 2008, 09:07 AM   #8
Senior Member
 
husabutt's Avatar
 
Joined: Feb 2003
From: Escondido, Ca. USA

Posts: 3,103
Thanks: 329

I Ride: 2005 Fe450,2001 Fx470,1997 Fx600




husabutt is offline  
July 1st, 2008, 09:12 AM   #9
Senior Member
 
Joined: Nov 2001
From: Ely, England

Posts: 16,017
Thanks: 494

I Ride: Husaberg FE501e 2003
well i can't find a code for it like you usually get at the end of the part code?

i've just opened the '04. '06 and '07 parts books and there is no date for them but for everything else of course there is!

Ok, hair if you are reading this? thank eric, and study the photos. in the first you'll see that the far cam has a silver shoulder of thick metal showing through. the nearer assembly has a shoulder of 10 thou/quarter mill.

the second is an overhead view of the arm reaching through. that photo is of the old set up so as you can imagine, the shorter arm would barely get into the exhaust cam lobe.

the third photo shows the shorter arm reach. try and imagine buster douglas and mike tyson!

regards

Taffy
Taffy is offline  
August 1st, 2008, 10:46 AM   #10
Senior Member
 
Joined: Nov 2001
From: Ely, England

Posts: 16,017
Thanks: 494

I Ride: Husaberg FE501e 2003
i have been given the opportunity to get someone's bike starting first time, its a 650 '02 and i said that i would do the lot to it. no holds barred!

first things first i went for all the kickstart stuff. this particular bike for some reason has a habit of the kickstart 'keyhole' seizing in position. bastard!

1) so i welded a blob on the end and that meant more of the 'keyhole stuck out the back of the gear and sat on the sledge.

2) i did the 'Taff's crescent mod' which can be seen in the doc and my gallery

electric start
3) i shortened the spragues spring and located the circlip correctly into the cprague which then upon fitting still clips into the housing for proper location - something often missed

having tried to start the bike i noticed the kickstart free again so it was cover off and get to the kickstart where i polished up the 'keyhole' again but also did:

4) the starter freewheel. having measured the torque at which my wrench clicked it was just 5LB - same as sparks, so having called sparks and been told i was a 'southern jessie', i put more ooomph into it and undid the very, very tight nut. having cleaned it up i found a shim and rebuilt it. torque limit wasn't actually found, i just went for 20LB and left it. like sparks i fitted a 0.020" (0.5mm) shim. before you pull it apart i can tell you that the most difficult part is that the ID must be 11 (eleven) mm.

5) a yamaha R6 starter motor has been purchased lately and was fitted. it needed two drill holes and shimming up the correct amount so that it was supported correctly. 8,5mm of spacers were required EXACTLY!

engine
the engine was fitted with the;
6) dutch clog decomp about a month ago and unfortunately the spring does bind slightly like loonybergs!

7) all the decomp cables are removed and everything that goes with them to leave a nice uncluttered look.

tappets set and valve timing (especially the valve timing!)

ignition
9) the genuine TDC was found using the dead stop method and yep! sure enough, the true TDC was equadistant to the right of the gap of the first two lines when viewed at 12 'o clock on the face of the flywheel. using a strobe TDC went from a line slightly to the left of the centre in the viewing hole to extreme right and the full advance came down from 47d BTDC to 33d BTDC. static advance at idle was 3d BTDC.

10) a denso IXU24 was fitted a month ago

carburation
10) i fitted a new atomiser and needle regardless - due to wear

11) i fitted a 40 choke jet as discussed earlier this week (see loonyberg for an opinion)

12) idle was later set, as was the fuel screw to suit.

what i didn't do:
electrical
13) it already had a YTZ7s battery fitted.

mechanical
14) checking for tuliped valves (done one month ago)

THE RESULT!
that R6 starter is something else! the engine flew over and i did something i've never done before on a husaberg: i fed it some throttle, caught the engine and she went!

bike runs beautifully. nice to have done the job properly!

regards

Taffy
Taffy is offline  
Reply

  Husaberg Forum > Mechanical and Technical > Mechanical

Tags
cured, finally, starting



Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
absolute din cured Taffy Mechanical 0 August 22nd, 2011 08:37 AM
Finally Got One... gaspipe Husaberg 4 September 5th, 2009 10:58 PM
10,000 10,000 I FINALLY DID IT cheeseberger Husaberg 12 October 5th, 2008 12:19 PM
FINALLY!!! risky1 Husaberg 8 February 1st, 2006 06:01 AM


Facebook Twitter Google+ RSS Feed