akrievins
New member
Okay, I'm coming from a fan sled to a liquid cooled. What is the warm up procedure when starting from cold? I was just outside and fired up my Viper. I put the choke on all the way and pulled a few times until it started. The machine revs at almost 4,000rpm until I turn off the choke. How long should I keep the choke on, and how long do you let it warm up before taking off. I found if I take the choke off too quickly my sled dies. I might have gummed up carbs because there was old gas in there. I think I jsut need to take it for a good spin to clean out the gunk?!
Coming from the fan-cooled engine, I was used to putting the choke on, turning the key with electric start, and then taking the choke off right after it started on my Phazer. It would continue to run no problem. I let it warm up for a minute or two, then take off.
Coming from the fan-cooled engine, I was used to putting the choke on, turning the key with electric start, and then taking the choke off right after it started on my Phazer. It would continue to run no problem. I let it warm up for a minute or two, then take off.
Cuzino19
New member
Whenever I start my sled I start it with full choke and let it sit, I usually go to half choke within a minute. I'll let it sit at half choke for about 5-10 minutes. After that I usually get someone to lift the back end so I can spin the track with no choke, or use a stand. I have found that with a viper, after you've done some riding, and go back to start it, give it some throttle because they're stubborn.
On the vipers, go full choke to get it started, and then go to half choke, only going back to full if it starts to die. After a minute oe when it runs ok on half, shut choke off, once again going back to half if it starts to stall. Don't touch the throttle for a good 5 minutes or it will foul plugs. I let mine run 10 to 12 minutes before taking off. Maxdlx
akrievins
New member
Wow guys, as dumb as this sounds, I had NO IDEA that you waited that long for warm up. Incredible info here! Here I thought my sled was going to be causing me problems. I was woried when it didn't stay at idle right away. Much different than my Phazer Fan-cooled.
I had ithe Viper warming up for about 4 or 5 mins and then it'll idle with the choke off. I know to give it a little throttle to get it started after warm. My Bro's Doo needs that. Man, I really don't want to give up my Phazer. It's just the most reliable little sled. No fuss ever! But it sure doesn't look and perform like a Viper!
Thanks for the help. TY sure is useful!
I had ithe Viper warming up for about 4 or 5 mins and then it'll idle with the choke off. I know to give it a little throttle to get it started after warm. My Bro's Doo needs that. Man, I really don't want to give up my Phazer. It's just the most reliable little sled. No fuss ever! But it sure doesn't look and perform like a Viper!
Thanks for the help. TY sure is useful!
daman
New member
^^^ rightmaxdlx said:
i always let mine warm up at least 10min wile i get dressed,
and also let it warm up some say if you stop for a bite to eat or
take a leak and BS a little,don't just jump on and piner, just
because it was running 20 mins ago,a sled cools down fast!!
Viper Treats
New member
Then when starting it warm, give it a 1/4 throttle and it should fire right up.
chilli
New member
I never NEVER use throttle to start my SRX...from cold, same as above...full choke to start, then down to 1/2 almost right away......usually before 1 minute, i am running no choke at all, and yes minimum 5 minutes, but more like 10 before I go....may be overkill, but a little gas wasted is cheaper than a seized motor....
When warm...I never need the choke....or throttle....
When warm...I never need the choke....or throttle....
JeepTherapy
New member
I didn't know that I was supposed to let my sled "warm up" before driving? I start mine with full choke (ER) drop it to 1/2 right away (bump to full to keep it running). As soon as it will run with no choke I shut it off. As soon as it will run without the choke I finish putting on my gear. Usually just means getting my helmet on and zipping coat. Then I hop on and go. I do take it very easy on the sled for the first 10 - 15 minutes before I start hammering on it. Are you guys saying I need to let my sled sit and idle for 10-15 min before driving it?
When the motor is warm on the Viper I hit the key and bump the throttle to get it to start. Starts very easy but seems like it needs to be burped a little to get it to stay running.
The VMax starts the same way cold. But when it is warm very often when starting it backfires first. But then it starts and runs fine. I have taken a lot of crap from riders on other brands over that backfire when starting thing on the VMax. I have had the VMax since it was new and it has backfired like that as long as I can remember.
When the motor is warm on the Viper I hit the key and bump the throttle to get it to start. Starts very easy but seems like it needs to be burped a little to get it to stay running.
The VMax starts the same way cold. But when it is warm very often when starting it backfires first. But then it starts and runs fine. I have taken a lot of crap from riders on other brands over that backfire when starting thing on the VMax. I have had the VMax since it was new and it has backfired like that as long as I can remember.
daman
New member
JeepTherapy said:
You always should let it run a wile to warm up or you
could cold seize it...
Piston could expand faster than the cyl. wall, if just jumped
on and go like hell..
EricMichael
New member
I always try to use the LEAST amount of choke possible to keep the sled running and to help keep plugs clean. Start with full choke to start the sled, once the sled starts turn the choke right off and keep it running with little blips of the choke when it wants to die. After the sled runs without the choke I go get my gear on come back out move the rpms up to 3-4,000 make sure plugs are all set and take off, sled still isn;t warmed up until you have gone down the trail aways and get it unloaded and until it sounds crisp.
JeepTherapy
New member
daman said:
I think my question was more towards how to warm up the sled. I warm mine up by taking it easy on it on my way out to the trial. I have to drive about 5 blocks of city streets or alleys before I get to the trail. I take it very easy on the sled on the city streets (follow the law) and don't pound on it till I get to the trail. When I get to the trail I ride a couple miles before I get to a long straight where I can open it up. Typically I open it up on that straight at least long enough so the sled runs clean.
So are you saying I need to let it sit and idle 10-15 minutes before I head out or is the easy riding (same as I treat my cars) sufficient? I thought that excessive idling and choke use was a cause of plug failure or fouling?
chilli
New member
JeepTherapy said:
In my experience, pumping the throttle to keep it going does more fouling then anything else.
I don`t if I`m jetted way to rich but if I let my sled idle for 10minutes before I took off then I`m sure it would foul a plug.
I normally start it with full choke, when it starts and has idled for 5 seconds (or so) I turn the choke knob down to half, then let it idle for 10 seconds or so, then I let it idle for about a minute before I eventually take off. (if it tends to die I just give it a little half-way choke). I keep the rews as low as possible the first few miles and then I start giving it more and more gas.
Done it like this with all of my sleds and never had a problem.
To let the sled idle for 10-15 minutes sounds like overkill if you ask me. Atleast if the weather is warm, on a cold cold day the mixture naturally gets leaner and fouling is less likely (atleast I think it seems like it, my SRX definately doesn`t like to be started in warm weather without being cleared out before the next cold start).
A fan cooled engine normally has a little more cylinder to piston clearance since the operating temperature will vary more, so I guess they are less sensitive to being really warmed up before taking off?.
A guy I know that has an Exciter 570 has a special warm up procedure:
-Idle for 10 seconds
-Full throttle, (for the rest of the ride if he`s riding, hehe).
He hasn`t seized it yet.. .
(and yes I`ve seen him do it, at first I thought he didn`t mean it)
Wellwell
I normally start it with full choke, when it starts and has idled for 5 seconds (or so) I turn the choke knob down to half, then let it idle for 10 seconds or so, then I let it idle for about a minute before I eventually take off. (if it tends to die I just give it a little half-way choke). I keep the rews as low as possible the first few miles and then I start giving it more and more gas.
Done it like this with all of my sleds and never had a problem.
To let the sled idle for 10-15 minutes sounds like overkill if you ask me. Atleast if the weather is warm, on a cold cold day the mixture naturally gets leaner and fouling is less likely (atleast I think it seems like it, my SRX definately doesn`t like to be started in warm weather without being cleared out before the next cold start).
A fan cooled engine normally has a little more cylinder to piston clearance since the operating temperature will vary more, so I guess they are less sensitive to being really warmed up before taking off?.
A guy I know that has an Exciter 570 has a special warm up procedure:
-Idle for 10 seconds
-Full throttle, (for the rest of the ride if he`s riding, hehe).
He hasn`t seized it yet.. .
(and yes I`ve seen him do it, at first I thought he didn`t mean it)
Wellwell
cacsrx1
New member
I let my 780 idle untill the heat exchangers get warm, 10 or 15 min, before I ever move it. I havent fouled a plug in years. Full choke till it fires, flip to half choke for about 5 seconds, choke off and walk away from it and get geared up. 
daman
New member
JeepTherapy said:
I'm just saying you should let it idle(wether you want to let it idle 5,10,20,30
mins is up to you ,LOL
) i let mine idle about 10 mins wile i get dressed up.others have already posted how to warm a vipe up, i don't know i don't
own one. but if your sled is tuned good a little choke is all you need then
let it run off choke to warm up,it shouldn't foul then.
my brother inlaws '02 VM6 will idle all day if you let it and not foul
a plug..
daman
New member
kimoaj said:
he's damn lucky then...what a fool!!!!
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akrievins
New member
I have always let my sled warm up a bit. Maybe about 2-3 minutes for my Phazer. I'll surely let the Viper warm up until there's heat at the exhangers. I guess I'll see how long it takes, but I honestly can't see an engine running for 10 minutes and not being warm enough to ride. By that time there's warm fluid all around, and I'll take it easy as I leave.
Great information from all of you guys. Some like to let it warm up longer, but you all do the same type of thing. Good for me to know. Thanks.
Great information from all of you guys. Some like to let it warm up longer, but you all do the same type of thing. Good for me to know. Thanks.
A K MtnViper
New member
The better you warm it up before riding the longer it will last, take 10 minutes not five. I don't know 
about you guys, but when I'm ready to take off, I want to nail it and have fun, not ride it easy down the trail to warm up 
about you guys, but when I'm ready to take off, I want to nail it and have fun, not ride it easy down the trail to warm up 92vwgti
New member
some guy that fixes my srx also fixes dozens of other srx told me to start as follows
- full choke for about 10 seconds
-then half choke for about 40 seconds
-shut off choke but he said not to let it idle or else il foul plugs?
usually i let it warm up 5-10 minutes then i take it easy on the trails until fully warm. but is it ok to just let my machine idle for lets say 5 minutes while i get dressed? some people say yes and other say no
- full choke for about 10 seconds
-then half choke for about 40 seconds
-shut off choke but he said not to let it idle or else il foul plugs?
usually i let it warm up 5-10 minutes then i take it easy on the trails until fully warm. but is it ok to just let my machine idle for lets say 5 minutes while i get dressed? some people say yes and other say no
daman
New member
A K MtnViper said:The better you warm it up before riding the longer it will last, take 10 minutes not five. I don't know
I agree.... i do 10 too..