"Cold Natured"

[jmsmilin]

I hear this term a lot. Heard it twice just recently on some bikes Im looking at. My inlaw calls his 4 wheeler that, and I have probably used it once or twice myself. But what the hell does it mean, and what does it mean to you? Why wont they start easy like they should-whats the real issue?

[SWIGIN]

its the same thing as a bike thats cold blooded.... like a snake i guess

they dont like the cold weather....... wont run right or start easy

[Bryan Raffa]

cold blooded ....dont start easy...

[jmsmilin]

right, but the question is why wont it start easy...

[SWIGIN]

well, cold weather will lean out your carb so if you are on the lean side before cold weather comes it will be real lean and hard to start.

richen up the air screw and pilot some and i bet it will start easyer

[BigReds Forever]

Well, "usually" larger displacement will be more "cold blooded" in my experience. My raptor is very "cold blooded." It doesnt start to hard but needs to run on full choke for quite a while before you can even think about driving it.
Some of this could be jetting. Im sure if you wanted, going with a little bigger main & pilot in cold weather would help.
It could also be other problems. I have an old 600 polaris indy tipple which is the most cold blooded thing ever. Under 25 degrees it wont pull fuel. There are other problems their, something with vacuum lines/fuel pump, ect. Im not exactly sure yet.
OR, It could be poor design as in the case of the early 85 250es Bigreds. The carbs didnt have a proper cold start circuit, too small pilot, venting issues (hence the service bulletin)
Now, the easiest cold starting rig Ive ever worked on was a 92 honda 300. The carb has a little primer and that thing would start right up, warm for a few seconds, and drive. Ive even thought about putting one of those carbs on my 250 just for that fact.

[84honda200s]

my modded 200s motor is cold hearted sob. wont start worth a crap but once its warmed up it runes like no tomorrow.

[randall_pitz]

Well, "usually" larger displacement will be more "cold blooded" in my experience. My raptor is very "cold blooded." It doesnt start to hard but needs to run on full choke for quite a while before you can even think about driving it.
Some of this could be jetting. Im sure if you wanted, going with a little bigger main & pilot in cold weather would help.
It could also be other problems. I have an old 600 polaris indy tipple which is the most cold blooded thing ever. Under 25 degrees it wont pull fuel. There are other problems their, something with vacuum lines/fuel pump, ect. Im not exactly sure yet.
OR, It could be poor design as in the case of the early 85 250es Bigreds. The carbs didnt have a proper cold start circuit, too small pilot, venting issues (hence the service bulletin)
Now, the easiest cold starting rig Ive ever worked on was a 92 honda 300. The carb has a little primer and that thing would start right up, warm for a few seconds, and drive. Ive even thought about putting one of those carbs on my 250 just for that fact.

i have one of those hard to start early 85 250 es whats bulletin or fix for that

[The Goat]

well a 300 honda is a different beast all it's own, there is no such thing as cold natured for one of those...best utility bike honda ever built, best utility bike honda WILL ever build.

one tap of the starter and that bike is running...no matter what.

[Rustytinhorn]

I had always thought that "cold natured" meant that it ran super well in the cold, and that "cold blooded" meant it did not like the cold. I can see how everyone compares it to a cold-blooded creature such as a snake, meaning that it never really quite gets up-to-snuff in cold weather. However, my R is the exact opposite. The colder the air, the better my R runs, with a very noticable difference. So going by my own meaning, I would consider mine "cold natured", but NOT "cold-blooded". But according to everyone else has commented so far, then mine should be "hot natured". Just seams a little backwards to me.