Getting started in the morning

[deeko2007]

Having a hard time getting the yz450 going in the morning. Tried a buddy heater in the trailer for a couple hours but must not be enuf.
Just looking for some tips or tricks and advice. Tiring yourself out from kicking before you even get to ride isn't that much fun haha

edit: I am running a trailtech voyager and a cyclops led bar
Thanks

 

[CATSLEDMAN1]

getting a Yamaha to stat huffing

So my couple of 4 stroke Yamaha's were never great starters, the YZ250 ok yeah...................but two strokes suck, 4 strokes don't suck.

So when I ditched the stock carb ( keihin ), and put on a Lectron I had high hopes for starting. Yup the Lectron solved the inconsistent 4 stroke starting while out riding/dropping/endo's etc...........EXCEPT when I trucked it down the road out of the warm garage and drove 70mph in 10 degree weather for an hour to some hot riding spot.

Solved the problem with a primer bulb. As I always suspected, 4 strokes don't start cold because they GOT NO GAS IN THE CYLINDER.
A clear line on my primer bulb squirt line, I see gas moving into the carb mouth with a couple of strokes of the rubber bulb, -10, wait 30 seconds for the gas to atomize, pull choke hit the pathetic Yam starter, instant light on a 10 year old wr. Will work on FI, CARB, no carb, cold engines neeeeed ATOMIZED ( read fumes) .to start easily when cold or otherwise

 

[wwillf01]

What year

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[deeko2007]

'13 EFI

 

[SEOINAGE]

My 10 yz starts poorly, always has. Best thing for me is just to take my time, find top dead center before I waste energy kicking, give it some throttle at end of kick, like it has to be perfect in order to start. My cr500 hoever I have a ritual for, which includes giving it some throttle prior to prime it, like was said can't do that with the yz, but the cr500 starts first kick even in cold.

 

[wwillf01]

Do you not have the option with a fuel controller/programmer to enrich the start? Also what weight oil... It is very important to run a light weight on the 4 stroke..

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[cade123]

Sometimes I have troubles cold starting my kx450f. But want I do is use a small gas heat connected to a propane bottle. And face it at the engine for 15min or so while I put my gear on. Then I give it some TDC kicks and it will start up easy.

 

[mrquick68]

If you aren't running 5w-40, start there. It makes a huge diffenence on cold mornings.

 

[pat84]

0W40 oil, TDC, I shut off my headlight (not sure if it helps but makes me feel better) and give it a little gas at the end of the kick.

 

[ktmtimbersled]

I had a 12 yz450 that I had the same problem with at first. The key I found was to open the throttle quite a ways (50-75%) while you kick. I was never giving it enough throttle to begin with. It didn't seem to matter much where you were at in the stroke but speed was key when kicking to generate enough electricity to run the efi since it didn't have a battery. After I got the hang of it the bike would start in cold temps even after sitting overnight in 2-3 kicks.

 

[Hawkster]

Interesting , so what you need is what I think they call a capacitor ?

When Doo came out with the SDI it either had to have a battery or an in line capacitor ? to allow for easy start ups . They actually start easier on a battery than pull starting .

 

[tillbuilt]

If I have an EFI bike that does not like to start cold. I give it a few kicks, then I put 2 teaspoons of fuel directly on the outerwear pre-filter and give it about half throttle, steady. Do not flick the throttle. Kick it a few more times you should start right up. Fuel on the prefilter is where it's all at.

 

[SteepNdeep450]

Might help to bump up your idle a bit, I'm not sure how it is on a yami but my Honda I have the best luck slowly kicking it a few times to prime the pump when its a cold start.

 

[WaBackcountry]

I use one of these on bottom of motor when my bike sits outside on a road trip. You need to plug it in or i can plug it in to my truck with extension through back window. You can actually warm it up on the way to the trail head. Works great. You wont believe how hot these things get.

http://smile.amazon.com/gp/product/B000I8YPQ4?psc=1&redirect=true&ref_=oh_aui_detailpage_o01_s00

 

[Wheel House Motorsports]

playing with different throttle positions and techniques. Seems like each bike has its own program and what it likes in the snow.

0 or 5-40 weight oil is essential, but looks like you nailed that. We have a number of 450's in the group and they all seem to have totally different likes and dislikes for starting.

My personal '14 yz starts pretty damn well in the AM. if its 10*F or above its usually 2 or 3 kicks and fires right up. Rock it over and find TDC otherwise I never seem to get anywhere. I do have my idle bumped up a tiny bit for snow. Just helps keep it running in the cold, especially if steam hits the prefilter. Mine likes a tiny bit of throttle partway through the roll.

Do you have a gytr tuner? I know mine likes a lot less fuel in the base cell for winter then in the summer. Just food for thought.

 

[suva]

Has anyone tried an RV tank heater? They're 12 volt, so that would make things easier.

 

[SteepNdeep450]

I use one of these on bottom of motor when my bike sits outside on a road trip. You need to plug it in or i can plug it in to my truck with extension through back window. You can actually warm it up on the way to the trail head. Works great. You wont believe how hot these things get.

http://smile.amazon.com/gp/product/B000I8YPQ4?psc=1&redirect=true&ref_=oh_aui_detailpage_o01_s00

This is what I've been thinking about, do you have foam inbetween your skid plate and motor too?

 

[SuperchargedWS6]

I've 2011 RMZ 450. Added a dobeck fuel controller to it and it starts in 7 kicks even at -25C, without touching the throttle.


Friends KX450 was hell to start. Probably tried for 2hrs straight. Heating it up with a propane heater, putting new spark plugs in, etc, etc.


On his, just a bit of throttle, say 1/8th throttle while kicking and it would start in -25C cold in 7 kicks. It's all about learning what your bike needs to start at that temp.

 

[Chadx]

If you have the option, start it up when you are still at home and let it come up to operating temp before you leave.

Also, when I'm at home and since my shop is not insulated, I take advantage of the wall outlet and point an electric heater at the motor for 30 to 60 minutes before I start it at home for either a pre trip warm up or before a pre oil change warmup. With the coolant temp gauge, I can look and see when the heater is starting to heat soak the engine,oil, coolant and wait until it is all up to 40 degrees or so. Just makes me feel a bit better starting it when it's a bit warmer rather than when oil and engine are 0 degrees, though that might be overkill. My bike happens to start well even at extremely low temps, but it just makes me feel like it's being a bit easier on it. As long as I have the time and a heater available, I go ahead and do it.

Preheating or not, it's typically easier to deal with hard starting at home before the drive rather than in the trail parking lot and a pre trip warmup can make a bike start better even if your drive is a couple hours.
...or, just figure out how your bike likes to be started and go with that. Ha.