Rzr hard to start when cold. I can't figure out what is causing the machine to do this.
Rzr hard to start when cold. See if you hear anything unusual in the air box. Oct 30, 2010 · My 09 RZR 800 has some issues when starting. 2014 RZR 570 EFI EPS LE TRAIL (WHITE LIGHTENING) Mods: HarborFreight Badland 3500 Winch - MotoAlliance Winch Mount Feb 13, 2018 · My 2013 850 sportsman is hard to start. Wish I could find that video again. Oct 17, 2023 · Need to do a hot fuel pressure test but I'm thinking pump so far. I would start by checking those. If you restart it, it will usually run great, and have no issues. Any recommendations on what to check out. Nope, she spun over quickly enough but wouldn't fire. The colder it is the less likely it is to start. I think Polaris updated these relays. At times it will throw the cps code when cranking and not starting but I'm pretty sure I've narrowed it down to only when hot. May 5, 2022 · Hard starting when cold. The coldest day was around 35 and I thought I was going to have to push the Ace into the garage and warm it up with a heater before it would start. I went from compression of 60/120 up to 185/190 after valve adjustment and no problems starting Mar 5, 2024 · 2018 XP1000 intermittent issue seems to do it more with a warmer motor but I've had it do it on a cold motor also once the motor warms up I turn it off take a pee and grab a drink and bullshit with buddies then go to get back in crank it and it fires up and then dies immediately I have to hold brake and give a little throttle It will sputter for a second then it runs fine Aug 23, 2023 · Start 1 - it'll crank for a few seconds then start and idle just fine until you give a little throttle and it'll die. 1M posts 146. It makes no difference if the air temp is cold or warm. Oct 25, 2019 · I have a 2013 800 rzr is hard to start and won't take any accelerator till you let it idle and warm up. It just will not start without throttle input. I had a dirtbike that would do this exact same thing about once a season, once valves were re-shimmed it would go right back to starting on the first couple of kicks. Just cranks and doesn't even try to fire. Dec 6, 2017 · PRCforum is the best Polaris forum community to discuss RZR 1000, Crew 900, PRC Ranger Club, XP 900, RZR XP 4 900, RZR 570, HD, 170, RZR-S, XP 900, RZR XP 4 900, ORV, side by side, SSW and off-road information. just waiting for it not to start at all. Jan 2, 2019 · I've got a Turbo S and everytime I go to start it (cold) it cranks but won't start on the first try. Oct 14, 2015 · I have a 2014 rzr 570 it's hard to start the first time you start it it can be a 100 degrees out side and it's hard to start I mean having to give it some throttle like its starving for gas I replaced the whole throttle body and I checked the fuel pressure changed the spark plug running out of ideas now after you get it started you can shut it off right after it gets started and it pops right Oct 11, 2020 · It started with it randomly starting and dying. Jan 3, 2013 · 2012 hard starting issues cold weather. Thanks much for any advice. May 4, 2016 · my 900 does the same thing. Update: It was -10C last weekend, the 570 has been sitting for a week without running, but I have a battery maintainer on it at all times. 3) Turn the key all the way off and let sit for a few seconds. Mar 11, 2024 · Winter weather is hard on vehicles. I found I have like 60 psi compression when its cold and 150 psi when its hot. Oct 9, 2011 · Engine temps around 190, turn off, chat for a minute or two, go to start and it feels like it is loading up, have to put my foot to the floor and then it starts and labours for awhile as it clears out the fuel. Here are some tips to improve the performance of your Polaris Off-Road Vehicle in cold weather environments. But the hard cold start and running good after engine is up to temp, is how the 4 stroke mx racing bikes used to act when they needed the valves shimmed. (Once it starts, it's fine). been that way for 2 years and about 1000 miles. The only way I can get it started is recharge the battery and try later or spray some starting fluid in the intake snorkel. Nov 20, 2022 · Using this procedure I was able to start mine yesterday after a very cold morning. net. I think the piston rings are stuck. Mar 5, 2016 · I honestly havnt worked much with the 1k engines. Sounds like your intake valves are a little tight. More testing tomorrow after work. Jul 17, 2018 · When I went up to 7000' elevation and it dropped to 50*f it would barely start. Through trial and error we found that if we warm up the air around the intake using a car heater, the Ranger will fire right up. It cranks for about 10-15 seconds then it will fire up and run fine. Oct 28, 2013 · to start when the temp drops below freezing. 2019 RZR 900 (2 seats) I haft'a flash the fuel pump several times & still cranks good but doesn't start until 3-4 cranks. If I crank it a second time it seems to fire right up. When it doesn't start it fires about one revolution and then gives up. Sep 22, 2020 · Low compression will make for a hard cold start. , Oct 28, 2014 · Where are you located? has it always been hard to start? Polaris RZR Forum - RZR Forums. Jan 29, 2015 · The RZR 570 and the RZR 900 would fire right up in the cold weather. Sep 24, 2021 · 900 RZR cold start. Like an intake valve(s) not closing properly. Something isn't right. Cold and warm is 80+ when holding throttle wide open. Have you checked your air box? Had a family of mice in mine this spring. Try to warm up the relays with a hair dryer first. Usually, when the engine is cold, you crank the engine, and it will start, and usually cough out of the intake a couple times then die. 1 cause of poor starting is fuel quality. The anti-knock characteristics that keep it from pre-igniting on a hot day, also keep it from ignition in very cold conditions. The engine temp on the display read 7 degrees and it started right up. Nov 23, 2020 · First thing in the morning whether it's warm outside or cold, it will not start. Have you sprayed carb cleaner around them and checked for leaks? Only if it sucked dust some how. The dealer is saying it is a problem with the fuel map - they have problems starting units that are in for service (they disconnect the battery and then boost it with a second battery to start 900's) My unit backfired so bad that it took out several teeth on the ring gear when trying to start it - Polaris is saying they won't warranty Dec 3, 2012 · I have a hard time getting my 2012 to start the first start of the day. I believe Swingarm1 sells a kit that changes the valve shims and buckets for the 1k engine that makes em easier to swap shims. I tried to start my RZR probably 15 times the other day before it would stay running. I’ve had multiple Polaris four wheelers and all of them never had any trouble starting the cold, but if it’s less than 30°, these things don’t want to start, and if it’s less than 20°, I have to pull the intake box open and spray ether in them to get them to start. Usually just the first, cold start. Jump to Latest They get tight, then backfire and start very hard when cold. Then after that it has warmed up it still don't take the gas right. Nov 26, 2018 · I saw a youtbe video about hard starting in cold weather for the 900s. I would give it a little gas and it would start back up most times. SOLD!!! 2012 RZR 570, with most of the accessories Dec 30, 2019 · Hard cold starts and then easy warm starts are typically associated with valve clearance issues. My 850's start right up with just a bump of the key, and idle cold Jan 26, 2016 · 2012 XP 900 has become hard to start Jump to Latest 21K views 10 replies 7 participants last post by wlst101 Feb 1, 2016 Sep 10, 2017 · 100 octane is really hard to get to burn in very cold weather. 2) Crank the motor for a few seconds then let off. 91 octane is as well. Intake boots were a problem. Sep 6, 2016 · I cycled the key 4 or 5 times (without starting it) then turned it over on the last key cycle and it didn't help. Once started runs good. Below 30 deg. I can't figure out what is causing the machine to do this. The No. Here's what I do 1) Turn the key on and allow all the relays, etc. Nov 8, 2012 · I would start out with a cold engine, clean the air intake area well, pull the AF, try cranking it. One cylinder would fire just enough to warm things up and then it was fine. Mar 7, 2017 · My brand new General struggles to start below about 35 F. One thing about it, when you have a rzr you always have a May 12, 2018 · My 2017 RZR 570 trail seems to start hard but once it's started for the rest of the day starts fine. Any thoughts or recommendations. I have to give it full throttle to start when cold but runs perfect when hot. But one morning after pulling it into the garage running the night before it wouldn’t start, just crank and crank but no start. It starts and runs fine after its warmed up, but cold start and cold idling requires throttle. The electrical relays dont work well in cold weather. Started last Feb 17, 2023 · Ever since day one they’ve been difficult to start in cold weather. 3. If you give it some throttle while cranking it has to crank longer before it'll hit. It turns over good,but takes several attemps to start in cold wx. -20C it won't start. It only does this the first time I try to start it, after that it starts fine. But some times I would have to let it sit for a few minutes and then it would start. Wet compression is also 80+. Valves get tighter when cold and I actually had negative valve lash. It puts an extra strain on engines and batteries. 7K members Since 2007 A forum dedicated to Polaris RZR . Feb 8, 2012 · Mine is terrible to start in the cold. Cold starts will start many multiple times with no issues. Figured that I would try and start her to see if it would fire up being this cold. to get set.