I live in Arizona. The morning temps are in the 30's. My POD Fuel Injection settings are at 0 ot of 0-126. I have 1800 miles on the Grizz so far. When I turn the key on, I wait until the pressurization is complete. You will hear it stop. Then is when I crank the engine. It usually starts in a few seconds. I have 10W 40w petroleum Valvoline ATV oil in the crank. No PTFE additives.

It looks like a cold starting issue that I have been reading about.

Hope all works out for all shortly.

Best Regards[img]i/expressions/face-icon-small-smile.gif[/img]

 

I think I have 20 hours and no problem. Only been in the cold to 15 to 25 on few starts. No real cold yet. It does run good. Lots of power. Stock so far I have made no change to it.

 

hey colorado bubba i have had the same problem as you are. I have a quick question for you. Did your dealership use some kind of tool that runs into your exhaust pipe to check your enrichment or are they dueing the samething my dealership is dueing? Which is pretty much guessing on the adjustment to lean it out.

 

I don't know if they sniffed it or not.
They orginally set it to 40, now back to something leaner and are riding and such and watching the plug. They want it for a few more days. No problem in fact we supposed to get cold again, this willl allow them to go back to looking at the orignial problem.

Have you cranked yours longer like 15 - 20 seconds? It seemed to help mine, thou I still took it back to dealer for her dieing at idle.

 

bullseye & CB~
The dealer put a sniffer in my pipe when they did it (at least they said so). I think mine has been set to 28. I have not had any problems yet, but I have not tried to start it when it has been really cold. It is always in my garage which is warmer. The delaer did run it for a while so I know they did something to it. I think I had 1.2 on the motor. When I got it back the motor had 1.9 on it. I am hoping this will not screw up the break-in process.

 

Have any of you that are having the hard COLD starting problem tried any alcohol in your gas yet??

I bought one in Oct. and took it up to the mountains @ 8000' & zero degrees. It wouldn't start until I had cranked it about 3 to 4 minutes in 10-15 second spurts. When it did start it ran fine the rest of the day. When I got home I put some alcohol in the gas, but I haven't really had a chance to start it again cold like that. It still only has 6 hours on it. CB I wonder if this is a moisture in the gas freezing problem? Because it only seems to do it on those with low hours and maybe some leftover summer gas?

I rode my 02 after that hunting with 20-40 oil and it always started(cranked slowly, but still started).

Just a suggestion.

 

I test rode a Grizzly 700 at the Dealer today and I have a question. I noticed there was quite a bit of vibration in the handlebars at idle, once it was started and without touching them, they vibrated farily well, kinda looked like a set of Harley bars. Is this typical or is the idle possibly set too low?

 

Mine does have that vibration in the handle bars.
I don't feel it at all riding it, just got back from riding for over a hour. Hands are not numb like they got with other ATVs and Motorcycle. That vibration comes and goes depending on idle speed. Which by the way can vary....

 

Wyomingboy, hey howdy neighbor. I know us Colorado people are just scum but that is OK. Some day I'll move the greatest state, Wyoming!!
No I didn't try alcohol...why would I waste good booze on my ATV when I could drink it? :-)

Update to everybody! Got my ATV back from the dealer. They found the plug black so assumed the mix was too rich. Turns out they adjusted the mix while it is running with sniffer in pipe and all looked good, turns out you have to turn it off and then on again, to have it take effect. They claimed no trouble starting.......... .......

I loaded it up and left it out over night. It got down to 0 degrees, but I waited until it was about 30 degrees and sunny here before I attempted to start her. I cranked and cranked and cranked, took 10 trys. Each crank was 15 secs. Some with no gas, some with throttle applied part way, some working the throttle. Finally with throttle part way open, 10% or so it started on the tenth try. [img]i/expressions/face-icon-small-disgusted.gif[/img] Now I'm ready to take this back and stick it where the sun doesn't shine[img]i/expressions/face-icon-small-mad.gif[/img] Good thing it was Sunday...you know there is a reason dealers are closed on
Sunday[img]i/expressions/face-icon-small-disgusted.gif[/img]

Took it up to 9000 + feet about mid 30 degrees and sunny. The grizzly started right up, but then I'd warmed it up for 15 min prior to loading her into truck. Rode her hard, hammered throttle off and on where I could, serious snow up in Allenspark 3-4 foot drifts. Now I never held the throttle wide open and never stayed on throttle for more than 10 seconds. Main reason was trail was one messed up mother, deep snow ruts and off chamber tracks. Only got stuck once and new wince pulled me out easy. I did NOT abuse her but did run her hard. Stayed in low range and can't wait to use her in high. Wow this baby is fast, way too fast for the trail I was on.....[img]i/expressions/face-icon-small-happy.gif[/img] I rode it enough to get 9.5 hours. I had no troubles at all while riding the Grizzly, handled the off chamber pretty darn good, better than I expected a Independent suspenion, power was way cool, considering the heavy deep ruts which never pointed straight the power steering was super!!! I found that if I locked the front end in, the Grizzly under heavy acceleration from a stop really seemed to improve the handling in those ruts, once I hit 20 mph the limiter kicked in. So that was nice that the limiter doesn't kick in at slow speeds to help us get out of ugly spots! FYI if you are buried in soft dry powder up to the under carrage locking in the front diff don't help at all. The pleasant surprize was how nice and stable the Grizzly handled with the diff locked under hard acceleration and rough ruted up tracks. Very impressive. Big improvement over not locking in front diff, but staying in 4X4. [img]i/expressions/face-icon-small-smile.gif[/img]

Ok so now the love affair has started with this particular Grizzly, probably my downfall but I'll take her back again and let them do the 10 hour service. I'll complain again about the cold start, Yamaha MUST get thier @#$ togather on this! They advertise this as "THE COLD START SOLUTION" BS. Damn that was close to $11K by the time I got out the door with a maintance and warrenty package!

I do have a thought about this cold start. Please note the following; most of the time I've had issues is when it gets down to 0 - 5 degrees overnight and unit is outside. I then waited until temps warmed up to 20 or above. Then attempted to start. I read the manual and it said this unit has a air temp sensor in the air filter cavity.

Now stay with me.....(love makes you think of any excuse to keep her) Honestly the Atv has set out in 0 degrees.....now around 9 AM and the sun is out the outside of Atv has warmed up including the outside air temp and temp sensor, but the engine block and coolant hasn't. That metal is probably colder than the air box. Now Yamaha can use the coolent temp and or the air temp to figure out how to mix for cold start and what I guessing is they are using the wrong program parameters. I believe it boils down to programming. Funny I'm a computer programmer so this makes very good sense to me, the computer will only do what it's told, via the program (called firmware). If computer relies too much on air temp over the coolent temp the program wouldn't richen up mixture enough for engine block temp, if program relies too much on coolent temps over air temps it may be too rich for air temps. It's a scenario Yamaha hasn't tested out, thats what us software testers call poor quality test engineeriing, ship it before it fails. I guess those California based Yamaha head quarters doesn't have to deal with real winter.

 

CB that's funny. I am a software engineer as well. I had it when other have me do thier testing!!! I am hoping this gets resolved soon. I tend to agree with you that it could be a firmware problem....

I had a similiar porblem with my Polaris 500x2. When I would get up to altitude and try to start it it would run pig rich! Polaris had to reflash the ECM and it was fine. I am thinking that Yamaha needs to come up with parms that work and reflash the ECM on the Grizz for a proper fix....