Dude22573 9 Posted September 2, 2020 Hello all! I am from Missouri and I am on a mission. Just purchased a 2012 trx400 that has been sitting for a couple years. It does not run well and I am looking for a service manual for repairs. Figured I would start by reading up on the manual but I am sure I will have more questions along the way. 1 Share this post Link to post Share on other sites
Wheeler 2,530 Posted September 2, 2020 Welcome to the site! lots of awesome people with tons of knowledge. 1 1 Share this post Link to post Share on other sites
_Wilson_™ 6,603 Posted September 2, 2020 (edited) welcome to ATVH. @SlammedRanger is our sport expert. Edited September 2, 2020 by _Wilson_™ 1 2 Share this post Link to post Share on other sites
Melatv 797 Posted September 2, 2020 Hi: Big Welcome Here 1 1 Share this post Link to post Share on other sites
Fishfiles 20,148 Posted September 2, 2020 Welcome again , was thinking since you mentioned you are going to do repairs and getting it running after sitting up , the best place to start you a thread might be under Custom Builds + Restorations , we also have a Sport ATV Section broken down into three sub sections ,where you want , it will get read where every you start a thread , give the year and model of what your working on and your problems and thoughts , pics of what you are working on are nice 1 1 Share this post Link to post Share on other sites
SlammedRanger 1,560 Posted September 2, 2020 Welcome aboard! Bring on the sport quads guys! I can send you a pdf of the manual or you can check out or manual section here on the forum. I am sure it is in there. 1 1 Share this post Link to post Share on other sites
SlammedRanger 1,560 Posted September 2, 2020 So i stand corrected. The newer than 09 is not in the manuals section. And i have an 05 so i have the 05-09. But there will be very few differences in the 10+ years. It was just plastic design and gas tank. All the mechanical stuff is 100% identical. 1 1 Share this post Link to post Share on other sites
shadetree 6,036 Posted September 2, 2020 welcome to the forums. 1 Share this post Link to post Share on other sites
bcsman 1,414 Posted September 2, 2020 Welcome, we dont have as many sport members as utility, so glad you are here to add to the group. Trust me there will be help for you when you need it.... 1 1 Share this post Link to post Share on other sites
Derf40 140 Posted September 3, 2020 Welcome Dude, you be in the right place for help 1 Share this post Link to post Share on other sites
shrade 197 Posted September 3, 2020 welcome aboard!! 1 Share this post Link to post Share on other sites
retro 4,074 Posted September 3, 2020 Welcome to atvhonda Dude! 1 Share this post Link to post Share on other sites
TBRider 1,411 Posted September 4, 2020 Welcome to the site 1 Share this post Link to post Share on other sites
Chevymec 510 Posted September 5, 2020 Welcome to the site!! 1 Share this post Link to post Share on other sites
Dude22573 9 Posted September 7, 2020 On 9/2/2020 at 3:20 PM, SlammedRanger said: Welcome aboard! Bring on the sport quads guys! I can send you a pdf of the manual or you can check out or manual section here on the forum. I am sure it is in there. I found the pdf for the 05-09. I cleaned the carb this weekend and I think that is all the quad needed. Thanks for the reply! 1 Share this post Link to post Share on other sites
AKATV 851 Posted September 7, 2020 Welcome to the atvhonda Forum! Look forward to hearing how your new quad cleans up, post a few pics when you can 1 Share this post Link to post Share on other sites
Fishfiles 20,148 Posted September 7, 2020 42 minutes ago, Dude22573 said: I found the pdf for the 05-09. I cleaned the carb this weekend and I think that is all the quad needed. Thanks for the reply! Glad you got it figured out. Stick around. If it were me. I would likely dump the fuel tank. Have a look inside and clean out if nessecary. To reintroduce crud right back into a just cleaned carb is a bummer. I put a double shot glass of Sea Foam in every non-ethanol tank of fuel. 1 Share this post Link to post Share on other sites
oh400ex 629 Posted September 7, 2020 Just now, Fishfiles said: Stick around. If it were me... I would likely dump the fuel tank. Have a look inside and clean out if necessary. To reintroduce crud right back into a just cleaned carb is a bummer. This is great advice! I would add that an in-line fuel filter would not be a bad addition. Need a high flow one though. 1 1 Share this post Link to post Share on other sites
Fishfiles 20,148 Posted September 7, 2020 I been running them screen filters like on a Briggs and Stratton. 1 1 Share this post Link to post Share on other sites
_Wilson_™ 6,603 Posted September 7, 2020 treat your stored (if any) gas with stabil.... especially if the gas is going to be stored for a long time.. 1 Share this post Link to post Share on other sites
Dude22573 9 Posted September 7, 2020 1 hour ago, Fishfiles said: Glad you got it figured out. Stick around. If it were me. I would likely dump the fuel tank. Have a look inside and clean out if nessecary. To reintroduce crud right back into a just cleaned carb is a bummer. I put a double shot glass of Sea Foam in every non-ethanol tank of fuel. First thing I did was dump and clean the tank. Gas was pretty yellow... I will always run sea foam in my engine’s, I love the stuff. Thank you for the pointers for sure! 1 Share this post Link to post Share on other sites
Dude22573 9 Posted September 7, 2020 1 hour ago, oh400ex said: This is great advice! I would add that an in-line fuel filter would not be a bad addition. Need a high flow one though. Do you run a filter? Im not sure there is enough room for one between the tank and carb. Share this post Link to post Share on other sites
oh400ex 629 Posted September 7, 2020 50 minutes ago, Dude22573 said: Do you run a filter? Im not sure there is enough room for one between the tank and carb. I do but there is a bit of a story on that... My on/reserve has been disabled in favor of a large in-tank screen/filter. It's a good solution but I'm not recommending it. The only in-line filter that you can actually use easily on the 400ex has a 90 bend on the end as it needs to replace the "S" shaped gas line. 1 Share this post Link to post Share on other sites