RMZ250 wont start, at all!!!!!!!!!!!!!
Posted 20 May 2008 - 07:57 PM
Posted 21 May 2008 - 06:08 AM
I would be wary of the bike having new valves unless the seats were cut. I didn't take advice I was given and put new valves in my son's bike without getting the seats cut. They didn't last too long. So this spring I ended up buying a new head AND another four new Kibblewhite valves. My wallet is very thin now. If your valve clearances are in spec, that is not your starting problem, just offering some food for thought. Keep an eye on your valves once you get it running.
Good luck and let us know what works.
Posted 21 May 2008 - 08:42 AM
ill tell you how i make out today see if i can get it running.
Posted 21 May 2008 - 09:05 AM
I hate to say it, but I only got 2 quick rides in when I fixed this though. Just like willierides that head was toast anyway. It had been shimmed to oblivion on one valve. That one valve went quickly and then I was informed by my head guy that the head was basically unrepairable. The ONLY way I will buy one of these bikes used again is with the head off so I can inspect it thoroughly. My new head, valves, springs, seat cut, gasket kit, Etc set me back about $750. And that is a deal according to most around here.
Posted 21 May 2008 - 12:41 PM
Posted 21 May 2008 - 03:34 PM
Posted 21 May 2008 - 08:38 PM
i didnt gap the plug i just put it in stock
Ummmmm, you do know that consistent firing depends upon the plug being gapped correctly? If it's closed too much, there is not enough area of the spark to ignite all of the fuel all of the time, if it's open too much, then the bikes electrical system may not have the voltage to jump the gap.
Im just saying, I always start with the stupid $h!t and work my way up.... Half the time the problem is something really dumb that you just never thought of.
Posted 22 May 2008 - 11:02 AM
Posted 22 May 2008 - 11:42 AM
Posted 22 May 2008 - 05:47 PM
Posted 24 May 2008 - 05:28 PM
Posted 24 May 2008 - 09:39 PM
Posted 26 May 2008 - 03:38 AM
Check for air leaks. Possibly running lean on pilot circuit?
These are possible causes. Does it pop or crackle on decel? If so, that's another indication of a lean pilot circuit. If that's it, bump the pilot jet up a size.
To check for leaks, get the bike idling and use an UNLIT propane torch around the boots, etc. If the idle increases, you found your leak.
Also make sure your throttle tube isn't binding on the end of your handlebar and that your cables aren't pinched or binding anywhere.