trx 400ex won't start after bore out &new t.chain...
#1
![Default](https://atvconnection.com/forums/images/icons/icon1.gif)
[img]i/expressions/face-icon-small-confused.gif[/img][img]i/expressions/face-icon-small-happy.gif[/img]isgust[img]i/expressions/face-icon-small-mad.gif[/img]
My trx 400ex started great but had no power and smoked out the exhaust so...I bored it out 40 over and put in 10-1 piston and rings, and replaced timing chain...now it does not want to start... so then i checked my timing again, cleaned carb, cleaned jets, pilot and main, checked needle, pulled all the wiring components off another that ran and still would not start...HELP
Any body have any idea...maybe something small that I may not have noticed...I seemed to have checked all the obvious....
My trx 400ex started great but had no power and smoked out the exhaust so...I bored it out 40 over and put in 10-1 piston and rings, and replaced timing chain...now it does not want to start... so then i checked my timing again, cleaned carb, cleaned jets, pilot and main, checked needle, pulled all the wiring components off another that ran and still would not start...HELP
Any body have any idea...maybe something small that I may not have noticed...I seemed to have checked all the obvious....
#2
#3
![Default](https://atvconnection.com/forums/images/icons/icon1.gif)
I have good spark and i pulled all the wires off a perfectly good bike to see if it was electrical...it still would not start. It will turn over and then flutter or lunge and like it wants to start and then it will just turn over and over and over... thanks for the help , though if you can think of anything else... we're stumped...
#4
#5
![Default](https://atvconnection.com/forums/images/icons/icon1.gif)
If timing is correct then the rings might not be sealing and compression will be down. Try a compression test to make sure. When I rebuilt my 250x it had barely any compression at first.. I could not get it to fire by kicking, I finally jumped it and it fired up. After that it was fine. I assume your getting fuel and spark.
#6
Thread
Thread Starter
Forum
Replies
Last Post
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)