02 426 wont start hot..new to strokers

[fat_oil_can]

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]

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]

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

[ripntear]

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 ?

[SureBlue]

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]

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]

Check the valve lash & lean her out! ?

[TheRainMan]

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!

?

[sirthumpalot]

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!

?

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