03 wr450 Hot Start Lever Questions
Posted May 13, 2006 - 04:46 PM
I am new to the forum and new to a recently purchased 2003 wr450 with low hours. Can someone please explain what the hot start lever does (is it compression release or secondary air bleed or what). My lever will not move with all the force I can give it with my index finger. How far should it be able to pull? How easy to pull it? Does it have a spring loaded return. ANyone who is familiar with this problem and can offer good lubrication tip for freeing it up would really be helping me out.
PS - I love this motorcycle. I used to have a few YZ250s back in the late 80s and then got out of riding for 15 years while I was in college, job kids etc. But now I am back and really excited about this bike it is really nice.
Posted May 13, 2006 - 06:29 PM
Posted May 16, 2006 - 07:20 AM
The lever should move using very little force
It is spring loaded so it will return when released.
If it is stuck, remove the carb and disassembly it to find the problem.
The hot start is a must (at least on my bike) when stopped warm.
Besides, it could be stuck in open position...making your bike run lean(er) depending on how it is jetted now.
When I pull this lever when the engine is running it increases the engine speed with a couple of hundred rpm's.
If I were you I'll get this cured immediately.
Just my opinion, no one elses...
Posted May 16, 2006 - 07:44 AM
Posted May 16, 2006 - 12:34 PM
Posted May 16, 2006 - 02:42 PM
It lets extra air in the carb for when the bike is hot.
If you remove the stock plastic nut on the carb to take the cable off and inspect, you'll most likely be looking for an after factory metal nut as that cheap plastic one goes ka-put very easy.
Posted May 16, 2006 - 06:48 PM
I never use mine either.
Serious? My bike wont start without it when hot!!!