1985 CR250 Starting Problems

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May 22, 2007
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#1
Hey,

I am 16 years old and just got a 1985 CR250 for like $700.00.It runs,But I am too small to start it.Is there any tips or tricks that I need to know? It has ALOT of Compression,And the only person who can start it is my friend Zack who has a CR125 but it's newer than mine.Is there any tips or tricks I can do to start it easily?
 
Joined
May 19, 2006
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#3
If your average size for 16, you're big enough to start it. Just wear riding boots when starting it. You will destroy your foot in tennis shoes.
I hate to be mean, but if you are really too small to start it, you may be too light to safely ride it.
 
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#4
Or you'll destroy your tennis shoes like I did. Try standing on a milk crate while you try to start it or have your buddy hold you up.
 
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#5
i usually just hold onto a tre or something beside me and kick. but try this, kick the bike lightly untill you feel it when its right at its top stoke. where you can feel compression then kick it hard from there, that usually works for me.
 
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#6
Thanks for all the help,And when I get someone to hold the bike for me so I can stand up and start it it's not a problem then.But I am still getting used to it and all.It's fun to ride,But just alittle hard to start for me.Also I am having radiator Problems.I put the Honda Fluid in it like the people at the local motorcycle shop and I put the coolant in and then I ran it and then it looked empty them put more in ran it again and did the same thing.Whats wrong??? Is their a leak or is it so old that it's designed to evaporate or sompthing?? Please let me know.
 
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May 22, 2007
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#9
Well It's just that the coolant isn't holding for some reason or It just doesn't come back up to the top or it evaporates or sompthing.
 
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#12
crazymotoxrider said:
Thats the problem I fill it up to the top and then I run it and then it's gone.

Do as foxforks suggested and drain your transmission oil. If the oil looks milky, you most likely have a bad water pump seal or a hole in your case. Those mid to late 80's CR's had a lot of magnesium content in the cases and if you run plain water with your coolant instead of distilled water, it would eat through your case. If the tranny oil looks milky, remove your right side case and inspect the water pump area.

When you add coolant to your radiators, be sure to mix 50/50 coolant and DISTILLED WATER.

Make sure your radiatior cap is good. It could be blowing the coolant out of the overflow.
 
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#13
I second the distilled water comment. I ran tap water for a couple of weeks because I needed water. Afterwards, my radiators were completely plugged with scale and corrosion. I was able to clean them out but will always carry distilled water with me from now on.
 
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#14
I will do that...I mean You can hear it boiling after I get done riding.What about the Air Filter?? It still has the original Air Filter lol,And it's all clogged and Crumbly...Could that cause it to overhead and boil and evaporate?? I am using the Honda Coolant that they told me to use at Iron Horse Motor Cycles.
 
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#15
Your bike has serious issues. Fix them before you damage anything. You should not be running the bike if the air filter is clogged and crumbly. You should not be running the bike if the cooling system can't maintain pressure, the fluid is boiling, and you're losing it at a high rate. Parts for a 1985 CR 250 are not always easy to come by and can be quite expensive. Repair things before you start breaking them.