The powerband on my 2007 yz125 doesnt feel like its running strong at all. the powerband wants to scream but it's like as if it hesitates or kicks on and off. whats going on???

Since you\'re old school I would think you\'ve already checked the normal stuff like the fluid level in the transmission. If this is good, has the transmission ever been serviced? I\'m not familiar with your vehicle so if it has a filter it could be that is partially clogged, Does the fluid have a strong smell to it? Does is feel absolutely smooth or can you feel or see little flecks of something in it. You may solve this by dropping the pan and replacing the filter. But if that is the problem it will only be temporary as if there is debris in the pan you are ready for a rebuild.The sooner you do it, the better before you have hard part damage. Another possibility is a bad solenoid in the tramsission that isn\'t sensing the pressure until it is high enough to jerk when it kicks into gear. Again to even check this though you need a transmission guy to pull it and look it over. Sorry guy.

fuel filter or injectors dirty ,,but you lose nothing changing that pesky fuel filter

Its quite a brief description of issue but any way I assume it is not starting???

You need 3 things to have a running motor 1 Spark at plug test this by removing plug connecting it back to the plug lead lay it on motor and kick bike over to see or not the spark, 2 fuel getting through to spark plug... test this by smelling and feeling the spark plug immediately after kicking it over should be wet and strong fuel smelling... 3 compression there are special tools for this but a simple back yard test is remove spark plug put your finger or thumb over the hole the plug came out of and gently kick bike over if your finger is not forced off instantly and you can resist some or most of the pressure when kicking it over then you have nowhere near enough compression...

This at least will give you diagnosis to know what to investigate further to get the beast to fire... Good luck

cheers... Motoxpartsonline.com

Hello and welcome to FixYa!

As a first course of action please charge the battery fully. If the battery is weak, the starter can't kick the flywheel. It takes an amount of force to kick the flywheel that's why the battery must be strong.

If battery is fully charged and vehicle still won't start, the problem can be on the starter itself or on the ignition switch. I strongly suggest that you have it looked at by an expert auto electrician just to be sure on what to replace.

Hope this helps and thank you for using FixYa! Have a good one!

wont start, or you can't move the kick starter?
If it kicks easily, do a compression test.

i have a 92 rm 250 an i just had it fully rebuilt an it laggs in power band an splutters an feels guttles

adjust the timing a little, take off the left cover, inside the magneto is a couple of screws. you loosen these the slightly rotate the timing to ****** or advance. This should take care of your problem.

i bought a peugeot 306 gti6 the radio dont work it got 8 dots will i have to have it decoded