02 426 wont start hot..new to strokers


8 replies to this topic
  • fat_oil_can

Posted October 07, 2004 - 08:04 PM

#1

Hello,
New to the 4-stroke thing here...i have an 02 426 and it is a great bike when it runs..my biggest problem is starting after it is hot...I have done the carb mod and the blue wire trick and cleaned the carb a few times and always keep a clean filter..It runs like a striped ass ape and startes on the first few kicks when cold..But when shes hot you might as well have a 12pack and watch a ball game because it does not want to re-fire..i have tryed all the tricks on starting..But the bottom of my foot just turns black and blue..Any help would be great..Thanks

  • yamaha.dude

Posted October 07, 2004 - 11:19 PM

#2

Welcome to TT...

Sometimes the hot start (the red button on the carb) can be a hindrance... sometimes I just start it without the hotstart... But I have the 450 cam in my bike, so I just kick it until it fires... Try not to touch the throttle at all when starting, hot or cold...

Good luck,

David

  • sirthumpalot

Posted October 08, 2004 - 02:53 AM

#3

Are you using the hot start (red knob)? That typically makes hot starting 100% easier.

  • ripntear

Posted October 08, 2004 - 03:58 AM

#4

Could possibly be that your pilot jet is too lean. What size do you currrently have in now? What's your altitude and temp? Check out this site http://motoman393.thumpertalk.com/ under Tech Articles go to Engine then YZ426 Jetting & Tuning spreadsheet.

ripntear :cry:

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  • SureBlue

Posted October 08, 2004 - 07:49 AM

#5

Provided the jetting is correct, my experience is to ALWAYS use hotstart and NEVER touch the throttle when the bike is hot. JMO.
Edited: Adjust the idle higher too, it may WANT to start but does not have the rpm's needed to get it going.

  • Fastest1

Posted October 08, 2004 - 03:34 PM

#6

Maybe a little more info would help too. Like where are you in altitiude? Has it always done this or is it a new problem? Has the temperature changed recently (getting cooler)? Fresh Plug? Type of gas? Have you adjusted the fuel screw? Do you adjust it daily? Thanks

  • YZDAD1

Posted October 08, 2004 - 03:44 PM

#7

Check the valve lash & lean her out! :cry:

  • TheRainMan

Posted October 08, 2004 - 05:08 PM

#8

I have a hard time starting my 02 426. Runs good cold, put if I drop it in a turn/or crash, the bike wont restart. Runs good for about 10minutes then its tries to die in the low rpm range. I've ridden 2-strokes for 20yrs and have only had this bike a month and think its time to get rid of it. I'm tired off kicking this ungrateful mule! Good Luck!
:cry:

  • sirthumpalot

Posted October 09, 2004 - 05:43 PM

#9

I have a hard time starting my 02 426. Runs good cold, put if I drop it in a turn/or crash, the bike wont restart. Runs good for about 10minutes then its tries to die in the low rpm range. I've ridden 2-strokes for 20yrs and have only had this bike a month and think its time to get rid of it. I'm tired off kicking this ungrateful mule! Good Luck!
:cry:



Sounds rich to me, turn the fuel screw in a tad. These things are very reliable starters once you learn how to do it. :cry:





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