Question about 1971 Yamaha XS1B

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No Spark from the plug but kicks good and has compression

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If not plug problem,check coil.

Posted on Sep 21, 2010

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Yz125 2005 not get fire


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

Dec 19, 2012 | Motorcycles

1 Answer

My 2007 yamaha yzf450 wont kick over like its frozen but when you take out the spark plug it kicks over fine,It has good compression and is not siezed what is the problem?


This can happen if the fuel tap leaks , and the engine fills with fuel.
kick it over with the plug out, and ignition off , and see if petrol blows out the plug hole.
it may take 20-30 fast kicks to clear it

Aug 14, 2011 | Yamaha YZ 450 F Motorcycles

1 Answer

Hi have a Husqvarna 410 2000 got spark fuel back fires but wont start checked flywheel is on right valves rock at top dead centre ... ?? but wont start ? kick start only tho ?


If the valves "rock" at TDC, the piston is at TDC EXHAUST, not TDC COMPRESSION. Chances are the engine is flooded. Install a fresh spark plug and go easy on twisting the throttle when starting the bike. Be sure the battery is in good condition. Push the kick lever to just past TDC compression then give a strong kick. Don't try to kick start with the piston going upward on the compression stroke. Be sure the air cleaner is not dirty and you have good gas. Please rate my answer. Thanks!

Mar 27, 2011 | 2000 Husqvarna TE 410

1 Answer

Any ideas on how to start a cold KDX 200 without kicking it 100+ times?


In order to better help you with the bike, more info is needed... does it have good compression? does it have a good spark plug? is it getting good spark? is the air fliter clean? is the carb clean? is fuel getting into the carb? is fuel getting into the cylinder? after kicking several times can you smell gas as if it were flooding? did you kick it over a few times and pull the plug out (QUICKLY) to see if its wet with fuel? does it look like there is any condensation on the plug after kicking it over several times? go thru all this info, and please let me know what you find and if this helps you.




















Jan 09, 2011 | 1998 kawasaki KDX 200

1 Answer

2003 yz125 wont start


Not much info to go by, but i'll give some things to check. Got fuel? Got Spark? Got Compression? If you have all these things, after kicking several times, pull plug to see if the plug is wet. If wet dry with compressed air, ground plug on head bolt or use spark tester, Kick engine over while watching plug, it should spark. If not replace and try again. If still no spark, check kill switch with ohm meter to make sure is working properly. If still no spark you will have an electrical issue with either the CDI Box or Stator. If the plug was dry without fuel, pull fuel line from carb. check to make sure fuel is running, if not check fuel shut off valve. sometimes the shutoff valve will clog up. If all is well it has to be a clogged carb.. Good Luck

Dec 05, 2010 | 2003 Yamaha YZ 125

1 Answer

My yz125 dosnt start was running died out when


check the compression with a compression tester. you may have burnt the ring out on the piston. if you don't have a compression tested you should buy one and test is right but if you remove the spark plug and stick your finger over the hole while you push the kick starter down it should force fully push your finger off. if so you have compression if not then you don't have compression and need to redue the top end.

if you have compression check for spark by taking the plug while it is still out and plug it back into the wire and rest the tip of the spark plug or side of it on the head and push the kick starter again. you should see the spark plug spark at the tip. if so it's good and if not you may have a bad coil or something in the ignition system.

but check that and et me know and i can further assist you.

Nov 30, 2009 | 2003 Yamaha YZ 125

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

2 Answers

VERY hard starting takes way to many kicks usually play out befo


There is a proper way to start the engine. Four controls are on your bike to assist in starting.
  • The choke, used when the engine is cold. Pull the red knob for choke.
  • The " Hot Start " Lever, used when the engine is hot. Pull the lever to lean the fuel mix when the engine has been running.
  • The de-compression lever, always used.
  • The throttle, used to prime the cylinder.
Don't kick, instead, push the kick lever downward. You will feel the back pressure as the piston is going upward on the compression stroke to the point the pressure is great enough that the kick lever "locks up". You are very close to TDC. NOW, pull in the de-compression lever. Push the kick lever a little bit more to get the piston past TDC. Release the de-compression lever. Give the throttle a 1/4 turn then let it snap closed. A diaphragm in the carb gives a shot of gas when this is done. DO NOT do this multiple times because you will flood the engine. Leave the throttle closed when kicking. Give a strong kick through the full sweep of the kickstart lever. Quickly get your foot off the kick lever at the end of the kick to avoid any chance of "kickback" from a backfire. It can be very painful, and can even break a leg. I am serious about that. Repeat the process (but without the throttle priming), until the bike starts. A good battery, a clean spark plug, a clean carb and clean air filter will also aid in starting.

Top rating for this answer? Thanks!

Jun 11, 2009 | 2003 Yamaha YZ 250 F

1 Answer

2005 250 f 65 kicks to start


Several things can cause the problem. First, spring for a new spark plug. The stock plug is NGK CR8E. Now the plug is eliminated as a problem. Next, pull the slide out of the throat of the carb. Now remove the jet needle. Put the needle clip on the 4th notch, (this is the stock setting). Use only premium gas. Next, follow the starting instructions below.

There is a proper way to start the engine. Four controls are on your bike to assist in starting.
  • The choke, used when the engine is cold. Pull the red knob for choke.
  • The " Hot Start " Lever, used when the engine is hot. Pull the lever to lean the fuel mix when the engine has been running.
  • The de-compression lever, always used.
  • The throttle, used to prime the cylinder.
Don't kick, instead, push the kick lever downward. You will feel the back pressure as the piston is going upward on the compression stroke to the point the pressure is great enough that the kick lever "locks up". You are very close to TDC. NOW, pull in the de-compression lever. Push the kick lever a little bit more to get the piston past TDC. Give the throttle a 1/4 turn then let it snap closed. A diaphragm in the carb gives a shot of gas when this is done. DO NOT do this multiple times because you will flood the engine. Leave the throttle closed when kicking. Release the de-compression lever and give a strong kick through the full sweep of the kick start lever. Quickly get your foot off the kick lever at the end of the kick to avoid any chance of "kickback" from a backfire. It can be very painful, and can even break a leg. I am serious about that. Repeat the process (but without the throttle priming), until the bike starts. A good battery and clean air filter will also aid in starting.

This will likely tame the beast for you. Please rate this answer. Thanks!

Jun 06, 2009 | 2003 Yamaha YZ 250 F

2 Answers

2003 Heritage Starter Problems


High compression engine needs compresssion release plugs. Thats why it turns over easy with plugs out. Have compression release put in your heads

Apr 04, 2009 | 2003 Harley Davidson FLSTC Heritage...

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