1992 EXC 300 Questions??? - KTM Forums: KTM Motorcycle Forum
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post #1 of 1071 (permalink) Old 08-20-2014, 07:37 PM Thread Starter
1992 EXC 300 Questions???

I just recently acquired a 92' EXC 300 in really nice condition.
I do not have a manual for it and did not know if it is even possible to buy one? Or get information about it somewhere?
Some simple things that I do not know about are what the mix ratio is for this and what type of two stroke oil is recommended? Also what type/weight of gear oil and how much? What type of radiator fluid and is it 50/50 mix?
Is there a good place to buy used parts online? Can you even get used parts? Can you even get any new parts?
Any help with these questions would be greatly appreciated.
I am trying to get this up and running and this information along with any other suggestions would help.
Thanks.







Update...

Here is a (very) short video of the first voyage of the finished (complete) 1992 KTM 300EXC that I started with as a project not really knowing what the outcome would be.
It was much better than what I had expected...
Here is a short video of the first ride.


















Rangerman

Last edited by Rangerman; 03-06-2019 at 10:40 PM. Reason: Even more recent update...
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post #2 of 1071 (permalink) Old 08-21-2014, 08:03 AM
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Cheers and welcome to the forum.


I do not have a manual for it and did not know if it is even possible to buy one? Or get information about it somewhere?

That's going to only be something on ebay.

Some simple things that I do not know about are what the mix ratio is for this and what type of two stroke oil is recommended?

I'd start at 32:1 with some non synthetic (Belray or).

Also what type/weight of gear oil and how much?
There is a fill plug and a fill level plug. Add oil until it starts
coming out of the fill level plug. Any regular "non energy conserving"
engine oil works.


What type of radiator fluid and is it 50/50 mix?

I like Coolanol premix.


Is there a good place to buy used parts online? Can you even get used parts? Can you even get any new parts?


With a bike that age, you will need to scour ebay.
Bralicea likes this.

2012 Yamaha Super Tenere
2009 XR650L

Past Rides
'14 Honda NC700X
'11 Husaberg TE 300
'08 KTM 950 Super Enduro R
'08 Husqvarna 610 TE
'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!


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post #3 of 1071 (permalink) Old 08-21-2014, 04:32 PM Thread Starter
Thanks for the information bajadog, I appreciate it.
Rangerman

2011 Kawasaki KLR650 (2nd Gen) "Two Up"
2007 Kawasaki KLR650 (1st Gen) "Solo"

1992 Honda XR250L "Dual Sport" (with historical license plate)
1992 KTM 300EXC "Vintage Enduro"
1991 KTM 300DXC "Running Project"
1993 Kawasaki KDX250
---Past Rides---
(1982 Honda XL250R)
(1980 Yamaha IT 125)
(1971 Penton 125 Six Day)

******CLW87******

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post #4 of 1071 (permalink) Old 08-22-2014, 11:19 AM
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Posts: 14,804
If you get lucky our resident vintage 2 stroke guru will appear and help
you when you have jetting or electrical gremlins (Hookuspookus).

2012 Yamaha Super Tenere
2009 XR650L

Past Rides
'14 Honda NC700X
'11 Husaberg TE 300
'08 KTM 950 Super Enduro R
'08 Husqvarna 610 TE
'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!


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post #5 of 1071 (permalink) Old 08-24-2014, 11:02 AM
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As far as pre-mix, KTM back in the day recommended Dura-lube.
Champion now owns the Dura-lube formula. They make it in air cooled
and water pumper. I run it 50:1 and always Have for about 25 years.

Any good gear oil will work fine, just change it often. I run Rotella
15W-40 in all my bikes with good results. I change it every 10-15
hours.

I've never had any overheating issues with my smokers running 50/50
Prestone. Again keep it clean and full. You probably have a vent plug
on the radiator without the cap. Be sure to take it out when you fill.

Parts cans sometimes be tricky. UFO might have plastic and I've had
other manufactures parts match up as well. Find a good local parts
that can help you out. They can be worth their weight on gold. I've
purchased bearings from my local industrial shop.

Old KTM 2T's will go a long time if taken care of. I rode my 360 for 16
years and 30,000 miles before retiring it. I just hope I can get that
out of my 500!

'13 KTM 500 EXC
'96 KTM 360 EXC (for sale)
'02 Suzuki DRZ 110
'97 Honda XR80R
'87 Can-am 200 ASE
'76 Yamaha GT 80
'71 Bultaco Lobito 175
'86 Honda CR125R (sold)
'82 Honda XR100R (sold)
'84 Honda XR80R (sold)
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post #6 of 1071 (permalink) Old 08-24-2014, 06:40 PM Thread Starter
Thanks for the info, this gives me what I need to get started. The PO thought that he had a manual for it but was not able to find it. That would have been helpful to have since I know very little (except what I have learned from here so far) about this KTM. I had a 71' Penton Six Day 125 when I was a teenager in the early 80's and had alot of fun with it (riding and repairing it). Parts were hard to find for it and I did not have a manual for it either, but it was a one of a kind bike that was worth the extra effort.
Thanks again for the information.

2011 Kawasaki KLR650 (2nd Gen) "Two Up"
2007 Kawasaki KLR650 (1st Gen) "Solo"

1992 Honda XR250L "Dual Sport" (with historical license plate)
1992 KTM 300EXC "Vintage Enduro"
1991 KTM 300DXC "Running Project"
1993 Kawasaki KDX250
---Past Rides---
(1982 Honda XL250R)
(1980 Yamaha IT 125)
(1971 Penton 125 Six Day)

******CLW87******

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post #7 of 1071 (permalink) Old 08-27-2014, 05:31 PM Thread Starter
I had another question(s). Is it necessary to flush the radiator before I put in new coolant and if so how? This EXC has been sitting in a garage for about five years and there is not any coolant in it right now. I was planning on filling with new 50/50 Prestone and draining old gear oil and filling with fresh oil (75W Bel-Ray Gearsaver) and mixing a fresh batch of high octane (93) gas 50:1 with Bel-Ray 2T Mineral Oil.
About draining the gear oil, do I drain that out of the fill level plug while slightly tipping the bike sideways?
Any other suggestions from you more experienced KTM riders would be greatly appreciated. I am in the process of trying to locate a manual so I can possibly answer some if not most of these questions for myself, but until then as always any input/info/help is greatly appreciated!

2011 Kawasaki KLR650 (2nd Gen) "Two Up"
2007 Kawasaki KLR650 (1st Gen) "Solo"

1992 Honda XR250L "Dual Sport" (with historical license plate)
1992 KTM 300EXC "Vintage Enduro"
1991 KTM 300DXC "Running Project"
1993 Kawasaki KDX250
---Past Rides---
(1982 Honda XL250R)
(1980 Yamaha IT 125)
(1971 Penton 125 Six Day)

******CLW87******

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"We go way back, you and me"
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post #8 of 1071 (permalink) Old 08-27-2014, 06:00 PM Thread Starter
By the way here is a picture of my 92'EXC.


2011 Kawasaki KLR650 (2nd Gen) "Two Up"
2007 Kawasaki KLR650 (1st Gen) "Solo"

1992 Honda XR250L "Dual Sport" (with historical license plate)
1992 KTM 300EXC "Vintage Enduro"
1991 KTM 300DXC "Running Project"
1993 Kawasaki KDX250
---Past Rides---
(1982 Honda XL250R)
(1980 Yamaha IT 125)
(1971 Penton 125 Six Day)

******CLW87******

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"We go way back, you and me"
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post #9 of 1071 (permalink) Old 08-27-2014, 06:45 PM
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Posts: 14,804
Quote:
Originally Posted by Rangerman View Post

Nice bike!!!

Think how ahead of the curve it was with inverted forks. Ya I know
factory race bikes had them in '92, but not many production bikes.

2012 Yamaha Super Tenere
2009 XR650L

Past Rides
'14 Honda NC700X
'11 Husaberg TE 300
'08 KTM 950 Super Enduro R
'08 Husqvarna 610 TE
'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!


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post #10 of 1071 (permalink) Old 08-27-2014, 07:08 PM Thread Starter
Thanks bajadog.
I had been looking for a KTM for quite sometime and found this one.
I really want to do it right to get this back on its feet (tires) again, so the more helpful information I can gather about it the better.
It looks as though it has been well maintained and it does somehow remind me of that Penton Six Day 125 I had years ago that had KTM stickers on each side of the tank.
All my friends would razz me and say what is a KTM? I thought it was really cool to have a motorcycle that was different and and somewhat unkown at the time and then little by little I started seeing more about KTM's in the dirt bike magazines as they started to become more popular.
Fast forward about 35 years and I'm ready to ride!

2011 Kawasaki KLR650 (2nd Gen) "Two Up"
2007 Kawasaki KLR650 (1st Gen) "Solo"

1992 Honda XR250L "Dual Sport" (with historical license plate)
1992 KTM 300EXC "Vintage Enduro"
1991 KTM 300DXC "Running Project"
1993 Kawasaki KDX250
---Past Rides---
(1982 Honda XL250R)
(1980 Yamaha IT 125)
(1971 Penton 125 Six Day)

******CLW87******

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
"We go way back, you and me"
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