Other Anyone adjust seasonally ?

[madscientist]

i rode yesterday for the first time since the temp dropped here on last weekend. I found that after doing a few runs and the x2 was topping out and running a little to good, I did a plug check to find near white plugs. made a couple of adjustments and mocha-ed them up a little.

i can only attribute this to the cold air.

any thoughts?

 

[Matt_E]

I ride in quite different environment conditions depending on time of year.
It ranges from 110 degree weather (70 water) to 25 degree weather (32 degree water).
I've never had to adjust carbs for that.

The only thing I do is restrict my cooling depending on water temps.
I'd guess it depends on how finicky your carburetors are (or maybe how well tuned they are to begin with)

 

[madscientist]

the only other variable was that i re-installed the drilled stock water box and removed the silencer that i was using in place of the box. ( much quieter now)

 

[Mark44]

Yes of course, cold weather riding can require a carb adjustment and water restriction but then again most people set there carbs by feel and don't really know how well they are performing anyway.

Mark44

 

[tor*p*do]

I alway richen about a 1/4 - 1/2 turn in early and late season
when ambient temps drop, it is just like putting a cold air intake on a car
except there is no mass air flow sensor to adjust the mix
cold air is more dense so your f/a mix becomes lean as more oxygen per unit volume goes into the combustion chamber.
richen her up!

 

[Endo]

I have had to on bikes, quads, and 440's. Colder equals denser air. I think it shows itself more on WOT runs.

 

[madscientist]

i understand the science of why it happened just thought it would make for a topic of discussion.

 

[yamaslut]

I wear a coat in the winter....

 

[Rickster]

I alway richen about a 1/4 - 1/2 turn in early and late season

You should be turning the screws out in cold/dry weather for the reasons you stated...

 

[madscientist]

I wear a coat in the winter....

yeah me too. but i also wear shoes. ancake:

 

[tor*p*do]

You should be turning the screws out in cold/dry weather for the reasons you stated...

yes, by richen I mean turn out.
I meant "in" as in "during" early and late season
sorry for the miscommunication!

 

[yamaslut]

yeah me too. but i also wear shoes. ancake:

no way... flip flops

 

[madscientist]

don't mind rick he is just had a lot of COFFEE !!!!!!!!!!!!!

 

[Rickster]

don't mind rick he is just had a lot of COFFEE !!!!!!!!!!!!!

:smokin:

You know me too well...

 

[WFO Speedracer]

At the last Smith lake ride I had to richen up all three skis before they would run right.Were you not paying attention?

 

[madscientist]

I'm sorry master.

 

[madscientist]

i see you got the power back on before GODZILLA attacked.

 

[craven]

up here in canada when the penguins migrate north and the beavers come out in the summer the water and air temps vary from skating on ice bergs to being able to use just a thick wet suit, I used to adjust my carb settings.... Just kidding... sometimes you dont need a wet suit.
Anyways I found the best solution for me was to make up a thermostat that controlled engine temp. That way if there is ice or hot water, my ski aways runs the same. An added bonus was I was able to run 3-4 jet sizes bigger.
More fuel = more power right? I have not had a cold seize since, and I would never take it off.

 

[Matt_E]

More fuel = more power right?

Not necessarily.

 

[tor*p*do]

Not necessarily.

more fuel (sometimes) = fouled plugs and poor running motor