If I use the kick starter or roll start it, it starts up quickly. Electric start, Forget about it. Also if the air/fuel screw won't work then either the passage Is plugged or there is a vacuum leak. When starting the bike cold using the electric starter, it will not start. Otherwise they are just a bit of a prick.Hey Chris I just bought a 14 wr450f and in love with it too. Had the same bike and my uncle also and we found that's the trick. No rad guards yet Since then trail tech released the fan kit. Timing....if it's exhaust hot, then sounds like it's running lean at idle.i know you checked some of this stuff already, but if I was checking it, that's where I'd start. My brother has a 2003 WR450F, lately it has been acting up and having a few issues.
It's hard to start and overheats easily. -BIG DANThe running hot thing......is it the exhaust pipe that's hot, or the engine, if it's engine, I'd be looking for a head gasket issue, or maybe ign. I've the trail tech on the right hand side and planning on looping in a low amp pc fan on the left. Hi All, Just looking seeing if anyone has a good FI map that would suit my 2015 WR450. Then back off the throttle and crank it. Otherwise they are just a bit of a prick. Give us a holla about how it goes. What has been suggested is to take it into the dealer and have them place an … How To Diagnose a Yamaha YZ and WR Starting System - YouTube I just sold my 2014 which is basically the same bike as yours and micks and unfortunately its the nature of the beast they can be temperamental to start no matter which map.Try cranking it with quarter throttle for a few seconds. It's hard to start and overheats easily.
Any help is much appreciated. 2012 WR450 hot start issues... Have been reading a lot about this on other forums as I have the same problem, have tried most things but when the bike is hot it is a real pita to start. I found a fan on eBay for approx $250 Just keep in mind if your running radiator guards will the fan fit?
It’s soft and cushy but doesn’t dive under braking like many other trail bikes and dual-sport machines. What really makes the WR so good on the trail is the suspension. Basically any help at all will be much appreciated. JavaScript is disabled. I think the problem was that the dealer was setting the Co2 when the bike was supposedly hot. Or possibly if anyone knows a reputable workshop that wont rip me off for a tune that would be great too! Once the bike … Hey Chris I just bought a 14 wr450f and in love with it too.
I played with maps with no success and the dealer played with the Co2 settings.
I can't help but feel it's bloody ridiculous the thing keeps running hot.
I just sold my 2014 which is basically the same bike as yours and micks and unfortunately its the nature of the beast they can be temperamental to start no matter which map. If you have an account, WR450 starting problem. The plan is to rich'n up the fuel supply some to aid in starting and help the overheating problem. Half the fun is giving it a fistful on a tough hill. I too had a 2014 wr450 from new and had the exact same issues.
[These are the supplemental instructions for starting Yamaha YZ/WR 250, 400 and 426 4-stroke singles.] Have you tried re mapping yours yet? i had this bike (2012) for 220 hrs, played with all the maps, had fmf powercore 4 muffler, aussie map was the best , did have to get the O2 sensor adjusted at the shop , but there was a trick to starting mine, if it didn't start first go , turn it off and on again , let it prime up again wait three seconds then bang , especially after stalling it , basically was was a pig to start from new, did get better thou,
For a better experience, please enable JavaScript in your browser before proceeding. I don't currently have a tuner but am happy to buy a slab for anyone that is able to let me use theirs
In the workshop manual it states to set the idle speed the engine case needs to read a curtain temp. Also if the air/fuel screw won't work then either the passage Is plugged or there is a vacuum leak. They would run the engine up to coolant temps but the actual engine was still cold.
2nd: once it is started it runs crazy hot.
1st: It is crazy hard to start, after about ten or so hard kicks it finally starts. The coolant would boil over well before the engine cases where warm. At the time I tried fitting PC fans but there is no room with radiator guards. Half the fun is giving it a fistful on a tough hill. It's like we're reading from the same playbook!
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