CR 250 Cold Starting

[Ryno]

Since everyone in here seems to ride, or have ridden at some point, I thought I'd throw this out there. I have a CR250 that takes about 20 kicks to start when cold. When warm, it'll fire right up everytime first kick. What can I do to fix this...I just went through the entire bike minus taking off the cylinder and head. I even have the pipe cleaned out when they did the little dings it in. I run a BR9ES plug, mix my gas @ 44-1. and change the oil, plug, filter every other ride. Thanks for any advice!!

Build it like a Rhino, and Leave it be.

[SPONSOR]

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[michael_loomis]

my CR is a 90 and when i start it by the book it starts first kick everytime .... anything else and nothing.

cold - choke on , no throttle
hot - 1/4 throttle

as if ya didnt know already lol

my kill switch has somekind of bad connection i think ... once in awhile it wont start regardless and i monkey with the switch a bit and it fires right up

[Kbach66]

Ryno...
If it's a newer CR (01 and up) turn the choke on, kick the bike about 3-4 kicks SLOWLY, then kick it once hard with the throttle slightly cracked open. This seems to work the best.

[jwfab1]

I have a YZ250 and if I crack the throttle when starting it, it won't fire cold. Try starting it with the choke up and no throttle and see if that helps. I also run my bike 32:1.

[ACID_RAIN28]

A trick I learned for finding a good ration is that you lean out the oil until you don't see a residue in out the pipe any more, then you bump it up just a hare, perfect.

It is a HONDA if it doesn't start on the first or second kick something is seriously wrong.

"Everything you do is triggered by an emotion of either desire or fear."

[Kritter]

If none of those tricks work check the piston, rings, reeds, jets, etc... When I was younger and did some dez racing my dad prepped the bikes to start first kick no matter what routine you did cuz if it didnt start...you were screwed on the bomb run. I will check to see if he has any tricks cuz my 60 80 and 125 could almost be started by hand or barefoot.

Kris
<A target="_blank" HREF=http://www.barneysprecision.com/fabproducts.htm> Fab Parts</A>

[Ryno]

The bike is a 94. The reeds are fine, carb is spotless and works perfect. The top end still has plenty of compression. I will try the 3-4 kick thing....I've heard of that working. Thanks for all the replies guys.

Kris-let me know what your dad says, I'm interested to see what tricks he has.

Ryno

Build it like a Rhino, and Leave it be.

[FABRICATOR]

I've heard several ways to start the big brother (mother?) 500. What's funny is they seem to work at first but the next time you go out they don't. It's still a ** [I]¡Ay, caramba![/I]**** [I]¡Ay, caramba![/I]**** [I]¡Ay, caramba![/I]**** [I]¡Ay, caramba![/I]**** [I]¡Ay, caramba![/I]** when it's cold.

<font color=orange>The best ideas are the ones that look obvious to the casual observer.</font color=orange>

[ACID_RAIN28]

I got an Lt 500 and when it has a new plug, first kick, no questionns, but as the day goes on it takes a couple. I always put in a fresh plug every day, it is only a $ or two so it is worth it.

"Everything you do is triggered by an emotion of either desire or fear."

[SuperDave]

You've got the wrong spark plug. The BR9ES has the large extended center electrode. This plug garuntees you trouble with cold starts. Get the BR8EG. The "G" is the thinner "racing" center electrode and the 8 is one heat range hotter than the 9. The manual for my '92 CR250 calls for the BR8EG but if you think this plug is going to be too hot for your bike, then get the BR9EG.

Dave

Rover 4