Question about 2003 kawasaki KX 250

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Have barely any compression at all but still starts after a lot of kicks.

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Turn off the key, hold the choke button and keep on kicking the crank handle for a few times but dont turn on the accellarator, After that turn on the key and release the choke button and slowly turn on the accellarator after every kick

Posted on Sep 13, 2010

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My kx125, can still start it and ride it without a lot of compression, it only gets compression about half way towards the bottom when kicking it, but it does start.. Any ideas??


Hi, Colin you may have a kicking gear engagement issue, do a compression test when the engine is at operating temperature should be around 125-130 psi. for more information about your question and valuable "FREE" downloads that you will need please visit the websites below. Good luck and have a nice day.
Minimum Compression Required
Curing 2 cycle engine problems
Small Engine Repair Compression Test on 2 Stroke Craftsman Chainsaw
https://www.howtomotorcyclerepair.com/images/Kawasaki-KX-125-KX250-Service-Manual-2003-2004-2005-2006-2007-2008.pdf

Mar 26, 2016 | 2003 kawasaki KX 125

1 Answer

My swift wants to start but wont kick over?


which engine? of the many and want country. ?
some are even diesel.
there are 3 phases to this.
cranking robustly
starts
and runs. and may stall soon after. or not.
at what point does this process fail.

if it dont crank we diagnose th starter system.
it fails to start (we check spark , then fuel) if both ok we check for lost compression (cam timing belt slipped>?)
if it stalls, lots more test.. over 50 causes.
this is what a tech does, diagnose. saving lots of time guessing and buying un-needed parts.
tell more, get more. but what engine.'

Dec 09, 2014 | 1998 Suzuki Swift

1 Answer

Can an 87 fxrs be kick started?


I've never heard such a thing...

But you have to have a kick starter first and I don't recall 87's having one. Correct me if I'm wrong or if the trans has been changed out then yes you could have one. But I've never heard of Harley's starting on the second compression stroke. Plus the modern after market ignition systems used without kick start transmissions are the same ones used with custom scoots that have a modern trans with the old look of the kick starter... Although with these high compression engines, compression releases are common place because neither the starter or kick starter could crank one without...

Dec 30, 2013 | Motorcycles

1 Answer

My 1987 wr 430 was easy to kick this morning when i baught it it has lots of compression but it got hard to kick so i pop started it to get it home and now its super hard to kick whats wrong?


Piston rings could have snapped and is making it hard to move piston in barrel I wouldn't recommend using bike till you check piston out as you could damage header of engine and may need it replacing if you damage it too much.

Jun 17, 2010 | 1989 Husqvarna CR 430

3 Answers

Its getting dam near impossible to kick start, it will start after 30 or so kicks, any ideas?


Could be low compression due to head gasket leak, worn piston rings. Or bad spark due to dirty plug, wrong gap, plug breaking down, lead or cap breaking down, ignition fault. Choked air filter, fuel filter.
Try these in easiest order I.E. remove air filter and see if it starts easier, do a compression test, cahnge plug, lead cap. Check the fuel filter.
I am sure it's a simple solution.(high milage engines tend to be difficult to start so take this into account)

Jun 27, 2009 | 2004 Honda CRF 450 R

1 Answer

Very hard to kick start


i dont know what your timing is relevant to flicking the compression switch and kicking, but get the engine to the compression stroke and then as you go to kick it hard, flick the switch at that moment. timing is everything. i had an old yamaha tt 500 that kicked back so hard my foot slipped off the kick start and kick lever came up and took the skin off my shin.. it took quit a bit of time to get the timing but once i did, it was easy.. hope this helps.

May 19, 2009 | 2005 KTM 640 LC4 SM

3 Answers

Yz 250 wont kickstart


Hi!
You obviously look after your machine and very sensible when laying up, however as you are probably aware 2 strokes rely heavily on compression, A. to produce excellent combustion and B. to draw fuel into the chamber. So when you try kick starting you can't get enough revolutions to draw the correct amount of fuel into the cylinder, where as you push start you constantly turn over the engine increasing compression slightly and bingo it fires.
Can you remember how when kick starting it before this problem the feel on resistance when kicking over? has it now become a lot easier? if so you possibly have worn or broken compression piston rings.
A compression test will reveal this, I hope this sorts your query?
Press the Blue button please for my FREE effort,
Thank You!
Paul 'W' U.K.

Feb 06, 2009 | 2000 Yamaha DT 125 R

1 Answer

Kickstart problem


Hi crazy

Your bike has an automatic de-compression lever that helps when starting. This mechanism will make it feel like the bike has low compression. If it is maladjusted, it may be causing the problem

check here for adjustment procedures to be sure that it is set up correctly.

Other than that, low compression pretty much means top end rebuild.

regards
robotek

Dec 16, 2008 | 1998 Honda XR 400R

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