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Makotosun

Yamaha Dt 250 1978 Spark Plug problem

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Replied by Scootern29 on topic Yamaha Dt 250 1978 Spark Plug problem

RNM you are hilarious. You are comparing apples to oranges with a 1990 RM 250 vs a 1970 something Yamaha 250 Enduro in the kind of riding you do. Of course it is not going to do the same thing. Your RM will not do the same thing my later 2000's KTM 200 or 450 Husqvarna will do, and I guarantee you I have a couple of air cooled twin shock race bikes that would out run your RM.

You said this "As for the It 465 and 490, in my opinion any air cooled bike isnt very good in a sand pit or a mud pit because when you are stuck, you cant use the power of the bike to help you getting it unstuck since it will overheat because its stationary". Do you not understand that the water pumpers have to have air flowing over the radiators or you are doing the same exact thing without airflow and melt the motor?

I really think this thread can go 30+ pages.
Question authority, think for yourself!
The following user(s) Liked this Post: bluntz465
23 Nov 2014 18:20 #151
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Replied by bluntz465 on topic Yamaha Dt 250 1978 Spark Plug problem

Good point Scoot,While he is busy cleaning the mud out of his radiator,The MIGHTY DT just keeps on truckin!
Since the mud just dries uo on the head and the MIGHTY DT just shakes it off passing the melted down suzuki at the bottom of the mudhole. :ROFLOL
1957 Cushman Eagle 1969 Honda 90 ATC 1969 Honda CB250
1973 Yamaha AT3 1974 Kawasaki KH440 1974 Honda XR75
1975 Suzuki TS75 1975 Kawasaki GreenStreak 90 1975 Suzuki GT550
1975 Suzuki TS250 1976 Suzuki GT550 1976 Indian Chief
1976 Yamaha YZ80 1978 Yamaha IT175 1980 Suzuki GS550
1982 Yamaha IT465J
23 Nov 2014 18:35 #152
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Im sorry if i got misunderstood but im just trying to discuss.

I am not comparing apples and oranges.
We are discussing about the off road capabilities of the Enduro versus the MX, because i do not think that my Enduro is a good off road bike for me.

btw, A liquid cooled 2 stroke will not overheat while stationay. Never seen an over heating liquid cooled 2 stroke.
A air cooled 2 stroke will, as a matter of fact, i heard stories about air cooled 2 stroke getting engine damage because the guy had let the engine run for a few minutes to get some heat into the engine before he went riding after starting it up.
Also when the head fins are cloged with dirt, its got simply no cooling at all.

Your 200 SX has just under 38 hp while my RM has just over 38 hp.
your 200 sx probably lighter but i dont think that would be that big of a gap between the 2 bikes.
Never tried to run the RM against a 450 4 stroke though. I know they have lots of power.

The gap in off road/general performance is way bigger between 1980 and 1990 than between 1990 and 2000, and you know that.
For instance take a look at this 1980 Rm 250.



Now look at this 1990 model, quite a lot of difference with engine and suspension and frame.



And last but not least, look at this 2000 Rm 250. Not much difference compared to the 1990 model regarding suspension, engine and frame.





But thats not the point.
The point is, in my opinion, my 36 year old enduro is not good enough off road for me.
Thats why i will stick to the RM for off road and thats why i will mainly run the DT on pavement with the exception of occasional smooth dirt roads.
I dont feel like mudding my DT.
Hope this clears things up

But just for fun , i quote, ''I have a couple of air cooled twin shock race bikes that would out run your RM.''
Id love to see that. The It 490 has 36 hp for twice the displacement and my Rm has 40 hp.
So its slower in a straight line and in the corners because of its suspensions.
So id be surprised to see any old bike smoking my RM.
What bike do you own that could possibly come close to the Rm even in a straight line ?
Last edit: 23 Nov 2014 19:03 by .
23 Nov 2014 18:50 #153

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Replied by Scootern29 on topic Yamaha Dt 250 1978 Spark Plug problem

"We are discussing about the off road capabilities of the Enduro versus the MX, because i do not think that my Enduro is a good off road bike for me."

Sell the darn thing and be done with it. Someone will appreciate it.

"But just for fun , i quote, ''I have a couple of air cooled twin shock race bikes that would out run your RM.''
Id love to see that. The It 490 has 36 hp for twice the displacement and my Rm has 40 hp.
So its slower in a straight line and in the corners because of its suspensions.
So id be surprised to see any old bike smoking my RM.
What bike do you own that could possibly come close to the Rm even in a straight line ? "

You don't have a clue how HP works. You have an archaic 1990 RM 250 that was so so in the day and if it was that good all the top racers would be riding them today.

You are really trying to play everyone here with the hillbilly persona aren't you? It's not really working. You can't be this ignorant, or are you?
Question authority, think for yourself!
23 Nov 2014 19:15 #154
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Replied by Scootern29 on topic Yamaha Dt 250 1978 Spark Plug problem

You do know that Kalib Russel just overalled a GNCC series pro race on a 150cc KTM and beat all the 1990 RM 250's that all the other guy's were running don't you.

31 pages.
Question authority, think for yourself!
23 Nov 2014 19:27 #155
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Perhaps you are older than me and you have seen more, but that doesnt make me an ignorant does it ?
You could use a bit of respect in your posts in my opinion.
You have the right to express your opinion and to say that you think i'm ''hilarious'', but insults are not welcome here. :Ugh

Now let's just get back to the original topic because it looks like it's not possible to have a discussion with respect.
Im gonna post an update on the progress on the DT when i get time to work on it. :Coffee

I shall keep my opinions on the performance of my bikes for myself from now on, i was thinking that on a website which is used by adults and not teenagers, one could express and discuss opinions with respect, but it does start to look like a honda civic forum.
That is sad.
Last edit: 23 Nov 2014 20:43 by .
23 Nov 2014 20:40 #156
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Replied by Makotosun on topic Re:Yamaha Dt 250 1978 Spark Plug problem

Please read post number 30 in the link shown below::

www.yamaha-enduros.com/index.php/forum/r...-model?start=20#6867

Too tired to write it again.


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IF it isn't one thing, it's another.
Last edit: 24 Nov 2014 12:54 by Enduronut.
24 Nov 2014 04:28 #157
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