Ktm 400 Exc Clutch Pressure Problem - Page 4 - KTM Forums: KTM Motorcycle Forum
 3Likes
Reply
 
LinkBack Thread Tools Display Modes
post #31 of 39 (permalink) Old 12-15-2016, 11:01 PM
Junior Member
 
Join Date: Sep 2016
Location: Mississippi
Posts: 16
I could never really fit the feeler gauge in the area because the little cup on the ball and socket joint pinched the gauge and I wasn't able to get it in. When doing the point-point method, I tightened until I felt resistance then went back 1/6th of a turn. I felt the clearance but never saw it or stuck at feeler gauge in it.

My intake manifold as far as I know is good, one of the metal tension rings around the boot broke and I've ordered a new one.

My acc pump before I cleaned my carb didn't seem to go all of the way down, but after it seems to be working fine.

I'm not sure how to determine if the choke is working, the mechanism of it is working. It goes in and out with a brass colored piece moving on the inside and I sprayed carb cleaner all around the choke opening and on the piece so I believe it is.

I did not spray carb cleaner on the seals of the acc pump and the slide.

The main issue is the valves, previously the bike ran, but poorly, now I can't keep the bike on. It will crank, but not consistently at all.
nathanslocum is offline  
Sponsored Links
Advertisement
 
post #32 of 39 (permalink) Old 12-16-2016, 06:04 AM
DW
Dirt Wizard
 
DW's Avatar
 
Join Date: Jan 2016
Location: Rum City, Qld / Australia
Posts: 1,239
If you have a day or 2 I am currently assembling an rfs engine and I will take a video of how to do it. 1/6 of a turn is all you need, if you can wiggle the rocker arms up and down and feel clearance that should be enough to have it fire. Fill the bowl of the carby up with fuel, hold the carb upright and crack the throttle wide open quickly and hold it open. You should get a jet squirt of fuel out of the ac pump jet for about 3 seconds. As for the choke, if you pull it out and it locks (stays out) it is probably working ok.
DW is offline  
post #33 of 39 (permalink) Old 12-19-2016, 11:40 AM
Junior Member
 
Join Date: Sep 2016
Location: Mississippi
Posts: 16
Yeah the video would be great, I couldn't feel any wiggle in the rocker arms. I haven't tested the acc pump yet, but the choke does hold out.
nathanslocum is offline  
 
post #34 of 39 (permalink) Old 12-19-2016, 04:36 PM
What the curtains?
 
bajadog's Avatar
 
Join Date: Feb 2009
Location: San Diego
Posts: 12,629
Here is a link to DW's video.

http://www.ktmforums.com/forums/offr...djustment.html

2008 KTM 950 Super Enduro R
2008 Husqvarna 610 TE

Past Rides
'14 Honda NC700X
'11 Husaberg TE 300
'06 Ducati 1000S Multistrada DS
'04 BMW 1150 RT
'03 KTM 450 EXC
'02 KTM 640 LC4e
'01 Honda XR650R
'00 KTM 520 EXC
'98 Honda XR600R
'95 KTM 620 RXC
'90 KTM 500 MX
'88 Yamaha TT600
'86 Yamaha XT 350
'84 Yamaha IT465 (STOLEN)
'83 Kawasaki KDX 450
'83 Honda CB1000 Custom
'82 Kawasaki KDX 400
'77 Yamaha DT200
'70 Honda CT70

See you at Papa Fernandez!


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
bajadog is online now  
post #35 of 39 (permalink) Old 12-19-2016, 06:11 PM
Junior Member
 
Join Date: Sep 2016
Location: Mississippi
Posts: 16

This is a video of my valves. I loosened the flathead of the way out and set it at what I thought to be TDC and there's very very in the intake rockers. Even if I was 180 off, it still should have been more than barely audible play in the intake rocker.

Is there something I'm missing or does the issue go deeper?
nathanslocum is offline  
post #36 of 39 (permalink) Old 12-19-2016, 09:42 PM
DW
Dirt Wizard
 
DW's Avatar
 
Join Date: Jan 2016
Location: Rum City, Qld / Australia
Posts: 1,239
You must not be at tdc or you have jumped teeth or one of your intake valves has bashed back into the head and the rocker arm is holding the spring tension. Get a torch and try to see if both cam lobes are pointing down and your piston is right up the top or the lock groove in the crank is lining up with the lock bolt hole
cors187 likes this.
DW is offline  
post #37 of 39 (permalink) Old 12-19-2016, 09:44 PM
DW
Dirt Wizard
 
DW's Avatar
 
Join Date: Jan 2016
Location: Rum City, Qld / Australia
Posts: 1,239
You also should set your exhaust valve clearance about 5 degrees past tdc to make sure you are not riding on the auto decomp
DW is offline  
post #38 of 39 (permalink) Old 01-02-2017, 04:00 PM
Junior Member
 
Join Date: Sep 2016
Location: Mississippi
Posts: 16
I took the head off and looked at the valves and they seat way too deep and there was some wear on the piston so I sent it to Millennium Technologies in Wisconsin to re-sleeve and re-valve.
cors187 likes this.
nathanslocum is offline  
post #39 of 39 (permalink) Old 01-03-2017, 05:24 AM
DW
Dirt Wizard
 
DW's Avatar
 
Join Date: Jan 2016
Location: Rum City, Qld / Australia
Posts: 1,239
Quote:
Originally Posted by nathanslocum View Post
I took the head off and looked at the valves and they seat way too deep and there was some wear on the piston so I sent it to Millennium Technologies in Wisconsin to re-sleeve and re-valve.
Not good news mate, but that would definitely describe a few things,.
However you are in good hands with Milltech

current bikes
2002 ktm 520sx
2004 ktm 525exc
2005 yamaha fz1
1982 Honda xr500
1994 Yamaha dt200
1970 Yamaha dt250

Previous
2005 ktm 525exc
1996 ktm 360exc
1994 Honda cb400
2002 cbr954 Fireblade
2002 honda xr250
1998 honda xr250
1997 suzuki rmx250
1993 yamaha wr500
1993 suzuki dr350
1993 honda xr200
1978 honda mt250 elsinore
1982 honda xl185
1981 honda ct185
1985 yamaha dt100
DW is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the KTM Forums: KTM Motorcycle Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome