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Search: Posts Made By: Aivasovsky
Forum: Thumpers 11-22-2011, 02:40 AM
Replies: 4
Views: 736
Posted By Aivasovsky
Anyone tried Shorai Li-Iron(?) batteries?

http://www.shoraipower.com/p-152-lfx14a2-bs12.aspx (http://www.shoraipower.com/p-152-lfx14a2-bs12.aspx)
This model is recommended for KTM 640 LC4

They seems to be very light and long life.
Any...
Forum: Thumpers 10-19-2011, 01:15 AM
Replies: 7
Views: 470
Posted By Aivasovsky
Hi Clint! Do you heard anybody tried to...

Hi Clint!

Do you heard anybody tried to renew the worn pin on the cam?

I think about renewing it. I'm a mechanical engineer but as you said it's a bit tricky.
Dont know the material and if...
Forum: Thumpers 10-19-2011, 01:06 AM
Replies: 7
Views: 470
Posted By Aivasovsky
I have the same problem since i have the bike. ...

I have the same problem since i have the bike.
I changed the cam with an used one, no hanging for a while, then started hanging again.
You can see the pin got worn (below pic) and cant catch the...
Forum: Thumpers 10-11-2011, 03:21 AM
Replies: 120
Views: 16,475
Posted By Aivasovsky
Hi Gunnerbuck! I'm sure this will be a...

Hi Gunnerbuck!

I'm sure this will be a great project.
Can't wait to follow it.
Please take as many pics as possible.

I will take my gray KTM 640 LC4e to my house for a thorough service for...
Forum: Thumpers 10-10-2011, 04:13 AM
Replies: 6,260
Views: 1,149,567
Posted By Aivasovsky
I opened them several times, cleaned the surfaces...

I opened them several times, cleaned the surfaces and used old gaskets without any problems.
Don't worry about it.
If you happen to damage the gasket you may use RTV gasket silicone or something...
Forum: Thumpers 10-10-2011, 02:32 AM
Replies: 6,260
Views: 1,149,567
Posted By Aivasovsky
Cold vs. Hot engine valve lash

I have checked and adjusted my valves. Thanks for the guide!
They were a bit tight.
Then i remembered that i ran the engine for a minute.
So it was a bit warm.
Does it make any problem?

How...
Forum: Thumpers 10-07-2011, 02:58 AM
Replies: 7
Views: 1,510
Posted By Aivasovsky
Very interesting! My friend wrote that the...

Very interesting!
My friend wrote that the bolts were found on the ground after the fell, were broken in the middle.
The broken cover part was in single piece (not shattered)
However the broken...
Forum: Thumpers 10-05-2011, 05:34 PM
Replies: 7
Views: 1,510
Posted By Aivasovsky
KTM 640 LC4e - broken clutch cover

A friend of mine had his clutch cover broken a few days ago.
There wasn't any speed involved, only a soft fall to the side made this mess.
The shifter pedal was between the cover and the ground...
Forum: Thumpers 09-06-2011, 04:31 AM
Replies: 10
Views: 915
Posted By Aivasovsky
I had uploaded some movies about the auto-decomp...

I had uploaded some movies about the auto-decomp system, maybe can give you some opinion

http://www.advrider.com/forums/showpost.php?p=15770837&postcount=49

Best wishes,

Kagan
Forum: Thumpers 09-05-2011, 03:18 AM
Replies: 7
Views: 2,035
Posted By Aivasovsky
Eek 2003 KTM 640 LC4e - Hydraulic Clutch oil - mineral or else?

I have bought this:

http://www.motorex.com/image/webtooldb/produkt/gross/hydraulicfluid75mineraloil.jpg

Hydraulic clutch cover says "only mineral"
Service emmanuelle says "no mineral"
...
Forum: Thumpers 09-02-2011, 05:50 AM
Replies: 3
Views: 1,142
Posted By Aivasovsky
2003 KTM 640 LC4 - hydraulic clutch malfunction while high rpm riding

Hi All! :bmwrider

After riding at high speed/rpm my hydraulic clutch feels soft and not working.
Turns normal as soon as i slow down.

Anybody had the same issue?
Forum: Thumpers 07-14-2011, 08:39 AM
Replies: 6
Views: 557
Posted By Aivasovsky
It's the original side stand (afaik) I dont...

It's the original side stand (afaik)
I dont have a center stand
Thanks,
Forum: Thumpers 07-14-2011, 01:55 AM
Replies: 6
Views: 557
Posted By Aivasovsky
KTM 640 LC43 side stand bending

My bike is leaning more and more everyday on the side stand.
Anyone knows which part of the side stand is bending in time?
Any solutions?
Thanks
Forum: Thumpers 07-12-2011, 11:03 AM
Replies: 2
Views: 1,186
Posted By Aivasovsky
Cooling system flow directions? - KTM 640 LC4

Anyone knows which directions does the coolant flow on this bike in each hose (thermostate open/closed)
There are two radiators and many hoses, so i need some help for the beginning

There are...
Forum: Thumpers 07-09-2011, 04:43 AM
Replies: 4
Views: 691
Posted By Aivasovsky
This pic was taken after cleaning. It was an...

This pic was taken after cleaning.
It was an Regina X-ring chain, well maintained, lubricated frequently.
x-rings were in place before i dismounted the link.
The rest of the chain was very healty...
Forum: Thumpers 07-09-2011, 04:19 AM
Replies: 4
Views: 691
Posted By Aivasovsky
Some more pics.. I wonder if this is normal or...

Some more pics..
I wonder if this is normal or not.
I consider to buy 2 link longer chain next time to be able to remove ends and save the rest if this problem occurs again..


...
Forum: Thumpers 07-09-2011, 04:00 AM
Replies: 4
Views: 691
Posted By Aivasovsky
Chain link problem - 520 x 5/8" - KTM 640 LC4e

I was having problems about adjusting the chain slack.
Few months later i found that the connecting clip link was the culprit.
The holes at the both ends of the chain was widened soo much.
Is this...
Forum: Thumpers 06-28-2011, 06:43 AM
Replies: 2
Views: 1,420
Posted By Aivasovsky
KTM 640 LC4e - Hydraulic Clutch body broken - temporary repair and welding

Hi all!,

Do you know how can i have my hydraulic clutch lever joint fixed by welding?
Do i need a special welding type or aluminium welding can work on this as well?

There was a crack from...
Forum: Thumpers 06-22-2011, 04:16 PM
Replies: 4
Views: 508
Posted By Aivasovsky
KTM 640 LC4e - Removing thermostate for hot weather

A friend of mine who's known to be a good KTM serviceman
recommended me to remove the thermostate from the cooling system to
keep engine cooler for hot days.
Which will keep the engine away from...
Forum: Thumpers 06-17-2011, 04:10 PM
Replies: 12
Views: 2,492
Posted By Aivasovsky
SOLVED - faulty mounting of jet needle

Hi all!

Finally, after disounting and mounting the carb 5th time, i found what was wrong.
Previous owner(or service) had dremelled the white spacer under the jet needle clip to fit into the...
Forum: Thumpers 06-17-2011, 05:09 AM
Replies: 2
Views: 2,012
Posted By Aivasovsky
I have found that the high set in the slide was...

I have found that the high set in the slide was also mentioned in the service manual drawing.

However my bikes previous owner has had the jet needle plastic modified to fit this contour.

I...
Forum: Thumpers 06-17-2011, 01:38 AM
Replies: 4
Views: 951
Posted By Aivasovsky
some more

and installed some more..

Front fix point is the back rack bolt.
Rear fix point is to the rack via strong cable zip ties.
Securing to the rear rack side handles with steel hose clamps
...
Forum: Thumpers 06-17-2011, 01:17 AM
Replies: 12
Views: 2,492
Posted By Aivasovsky
Hi Bill, My bike is 2003 LC4 Enduro, Carb...

Hi Bill,

My bike is 2003 LC4 Enduro,
Carb is Mikuni BST-40
There is no fuel pump
I have cleaned all the passages and jets with a thin wire and compressed air, checked again by blowing air to...
Forum: Thumpers 06-16-2011, 03:17 PM
Replies: 12
Views: 2,492
Posted By Aivasovsky
Thanks Gunnerbuck, I have checked the fuel...

Thanks Gunnerbuck,

I have checked the fuel supply, it flows easily.
Also dismounted the carb into all pieces and checked all the vents, holes, jets etc with a wire and flashlight.
Everything...
Forum: Thumpers 06-15-2011, 04:15 PM
Replies: 12
Views: 2,492
Posted By Aivasovsky
Thank you Dhally, I have cleaned all the carb...

Thank you Dhally,
I have cleaned all the carb but nothing changed.
A little possibility can be that some dirt clogged some ports
inside the carb, but i used a lot of pressure air as well..
...
Forum: Thumpers 06-15-2011, 04:11 PM
Replies: 12
Views: 2,492
Posted By Aivasovsky
I serviced the carb. today, cleaned checked...

I serviced the carb. today, cleaned checked eveything. All seemed fine.
Mounted and gave it a test ride, the same problem remains.

One point is that i can go at WOT as long as i want.
So it...
Forum: Thumpers 06-15-2011, 02:21 AM
Replies: 12
Views: 2,492
Posted By Aivasovsky
KTM 640 - BST40 carb. float problem - mixture leans too much after full throttle

After riding at 3/4-full throttle for 1-2 seconds, the bike starts bogging and runs extremely lean after returning normal throttle poisiton (below 1/2), with power loss, even backfires!
Slowly...
Forum: Thumpers 06-15-2011, 01:59 AM
Replies: 18
Views: 948
Posted By Aivasovsky
I have exactly the same problem. Only solution...

I have exactly the same problem.
Only solution is riding on pegs or softening the seat.
Interestingly, the noise goes away after 50mph, maybe related to the knobby tires or other kind of...
Forum: Thumpers 05-07-2011, 01:30 AM
Replies: 1
Views: 393
Posted By Aivasovsky
Moving the bike with e-starter

Yesterday i changed my clutch lever.
The clutch switch didn't work with the.
So i cancelled it.

Now i can move the bike with e-start.

It can be lifesaving for extraordinary situations.
Such...
Forum: Thumpers 05-05-2011, 12:14 AM
Replies: 60
Views: 9,429
Posted By Aivasovsky
Thanks for the advice! I will check the pump...

Thanks for the advice!
I will check the pump and change the seals and bearings at first for prevention.
Because the industrial spares like seals and bearings can be found here for almost no price...
Forum: Thumpers 05-05-2011, 12:07 AM
Replies: 60
Views: 9,429
Posted By Aivasovsky
I believe the reason for this the difference...

I believe the reason for this the difference between
letting the engine warm up for a couple of minutes before moving
or just starting the engine and go without waiting for the oil distributed to...
Forum: Thumpers 05-04-2011, 01:24 AM
Replies: 60
Views: 9,429
Posted By Aivasovsky
No, not yet.. I didn't have too much time to...

No, not yet..
I didn't have too much time to service other than the top end for clicking.
Do i need to worry about the water pump?
I will check the topic about it now
Thanks for reminding! :thumb
Forum: Thumpers 05-02-2011, 11:46 PM
Replies: 60
Views: 9,429
Posted By Aivasovsky
Oh god! I was in deep depression after...

Oh god!

I was in deep depression after changing and checking everthing on top of the engine.
Clicking was still there!

Yesterday i found the source of the clicking!
It turned up to be the...
Forum: Thumpers 04-27-2011, 05:51 AM
Replies: 60
Views: 9,429
Posted By Aivasovsky
Its now 18000km. I have it since 12000km. ...

Its now 18000km. I have it since 12000km.
Thanks for the recommendation, i will change them to be sure anyways

Best wishes :freaky
Forum: Thumpers 04-27-2011, 05:47 AM
Replies: 60
Views: 9,429
Posted By Aivasovsky
Here are some movies about how the...

Here are some movies about how the auto-decompression works:

http://i263.photobucket.com/albums/ii124/emrekonak/KTM/th_deco-work2.jpg...
Forum: Thumpers 04-27-2011, 05:23 AM
Replies: 60
Views: 9,429
Posted By Aivasovsky
Hi Makazica:clap Thanks for the advice. ...

Hi Makazica:clap

Thanks for the advice.
I have seen the marks on them as well but the surface was smooth.
So i thought that color wouldnt be a problem.


Another thing made me worry was...
Forum: Thumpers 04-27-2011, 03:37 AM
Replies: 60
Views: 9,429
Posted By Aivasovsky
Yesterday a friend sent me a spare cam shaft of...

Yesterday a friend sent me a spare cam shaft of his own which he wont use anymore (sold his bike). Mine auto decomp was not working due to pin wear.
...
Forum: Thumpers 04-26-2011, 01:54 AM
Replies: 60
Views: 9,429
Posted By Aivasovsky
Thanks Gunnerbuck :thumb It turned up that...

Thanks Gunnerbuck :thumb

It turned up that i have under torqued one of the bolts that clamp the rocker axle.
Because when i touched the rocker axle (engine idling) they were rotating with the...
Forum: Thumpers 04-22-2011, 02:56 AM
Replies: 60
Views: 9,429
Posted By Aivasovsky
My Rocker Axles are moving in axial axis. ...

My Rocker Axles are moving in axial axis.


How can we shim them accordingly if they can move.
After a short period of riding they protrude outside a little as the headbolts allow. I can push...
Forum: Thumpers 04-21-2011, 06:10 AM
Replies: 9
Views: 1,107
Posted By Aivasovsky
Eek the clutch plates were not installed -new-(sorry...

the clutch plates were not installed -new-(sorry i forgot to write "new", now i saw it and edited)
they must have at least 10000km on them
do you mean if they werent soaked when first installation...
Showing results 1 to 40 of 155

 
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