dujmbpesrons123 1 Posted July 25 Hello, recently redid all the wiring, did a carb rebuild and it’s good as new and gas makes it to the carb. I checked compression and got like 163 at full throttle. I will post pictures of the spark I got it’s pretty consistent. i was wondering what my next steps would be? Throw on a new top end? Or anything else. appreciate everyone’s help, haven’t worked on atvs too much so i might be making a stupid mistake. model: 1989 Fourtrax 300fw IMG_0569.mov IMG_0569.mov Share this post Link to post Share on other sites
shadetree 6,026 Posted July 26 On 7/25/2024 at 8:53 AM, dujmbpesrons123 said: Hello, recently redid all the wiring, did a carb rebuild and it’s good as new and gas makes it to the carb. I checked compression and got like 163 at full throttle. I will post pictures of the spark I got it’s pretty consistent. i was wondering what my next steps would be? Throw on a new top end? Or anything else. appreciate everyone’s help, haven’t worked on atvs too much so i might be making a stupid mistake. model: 1989 Fourtrax 300fw IMG_0569.mov IMG_0569.mov sounds like you got everything you need for it to start and run ?, but !!..if the timing is off ?, it will never start. please check the timing !!. make sure it all lines up ?, if not ?, it won't start. Share this post Link to post Share on other sites
dujmbpesrons123 1 Posted July 27 2 hours ago, shadetree said: sounds like you got everything you need for it to start and run ?, but !!..if the timing is off ?, it will never start. please check the timing !!. make sure it all lines up ?, if not ?, it won't start. Thanks, do you know where in the manual I can find how to set compressions. I’ve looked through it and can’t find it in there. Or if there is a YouTube video I appreciate your help. Thank you Share this post Link to post Share on other sites
shadetree 6,026 Posted July 27 13 hours ago, dujmbpesrons123 said: Thanks, do you know where in the manual I can find how to set compressions. I’ve looked through it and can’t find it in there. Or if there is a YouTube video I appreciate your help. Thank you you don't set compression; did you mean set timing ?. first, you do not '' set '' timing, you do however, check the timing. if you are in the states ?, send me a pm with your cell number, i can tell you faster than typing out a book..lol. 1 Share this post Link to post Share on other sites