WR426 hard to start when hot
Posted July 02, 2005 - 01:36 PM
It is not the spark plug. I assume it is carb related. Anyone know where the problem likely is? Is it something that I can fix without removing the carb?
Posted July 02, 2005 - 01:41 PM
Posted July 02, 2005 - 01:53 PM
try not turning the throttle when you start your bike
This is true......you should never give it gas when starting it. Try turning your idle knob up about a 1/2 a turn and make sure to pull the hot start plunger out too.
Posted July 02, 2005 - 01:54 PM
Posted July 02, 2005 - 02:01 PM
It's a wierd problem, that's why I ask.
Posted July 02, 2005 - 03:44 PM
Posted July 02, 2005 - 06:44 PM
Oh, an by the way, I've had the bike since new, 2,800 miles on it now. This is a new problem and I know the normal drill (I now have auto-decomp cams for the last 1200 miles).
Oh. so sorry. You didn't say that in the first place. Just letting you know what works on my 02 426
Sorry guys, just has to stir the pot. it's in my nature
Posted July 03, 2005 - 06:39 AM
Posted July 03, 2005 - 11:52 AM
This is a real unique problem and I've never seen it myself before. Of course, none of my past bikes have had as sophisticated carb as this. All I'm looking for is if anyone has expierenced this problem before. Again, when the bike is hot, I need to pump fuel into the engine via twisting on the throttle a few times to get it started. Pulling out the choke aslo helps a bit. There must be something plugged in the carb and if I don't need to pull the carb to clear it, that would make me very happy .
I've dissasembled and rebuilt many carbs in my riding career, basically I don't want to do more than necessary. As it stands, I spend as much time working on the bike (counting normal maintainence as well as engine failures) as riding it. Kind of reminds me of '70s vintage snomobiles. For us guys that can't afford new bikes every year, these new breed, high performance thumpers really suck. Too much time and $$$. I hope they get the 4 strokes figured out before the greenies outlaw sales of new 2-strokes. -- OK, DONE RANTING NOW!!--
I'll be out of town and return with 1 day to fix the problem before a 3 day ride. My son will be on the GasGas so that's not an option for me. As it stands now, looks like I'll be spending 1/2 of that day removing and cleaning the carb. Or maybe I should just eat the loss and trade it in on another GasGAs before the event . Damn, that would take 1/2 a day also (but the future would be much brighter).
Anyway, thanks for all the input. and if anyone KNOWS where the problem resides, I appreciate your input very much.
To all of you TT'ers, have a wonderfull 4th, and happy riding to all!
Posted July 03, 2005 - 07:00 PM
Posted July 04, 2005 - 12:31 AM
Posted July 06, 2005 - 03:47 PM
Thanks for the input everyone and have a good weekend of riding!
Posted July 07, 2005 - 04:25 PM
I pulled the carb for the first time after 3,400 miles and installed my JD jet kit. The first thing I found was that both my throttle cables were frayed badly. I think this contributed to my hard starting and irratic idle. I think the throttle was hanging up just a bit.
Also the carb in general was very dirty. I am glad I took the time to pull it apart and clean it. I couldn't believe all the fine dirt that came out of that thing. I am surprised it ran as well as it did.
After all the work was done she started on the first kick and starts within three kicks when hot with no hot start needed. The bike runs great.
I learned a lot about the carb it was a good lesson for me.