having problems with starting my motorbike

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hondaxl125r · Mon Mar 20, 2006 7:09 am

im an owner of a honda xlr125r.It is used every day and working ok on saturday night fine when i came to use in on sunday morning it would not start,replaced the plug and and there was a spark, plenty of fuel,could u please help? the year of the bike is 1985 please contect with any suggestments thanks luke

#2 Unread post by **Skier** » Mon Mar 20, 2006 7:15 am

Start with the basics. You need air, fuel, spark and compression.

Verify the spark plug fires when the threads are grounded to the engine somewhere.
Make sure there's gas in the tank, and the carb bowls have some in them as well.
Make sure the air filter isn't clogged.
Verify there's compression (using a compression tester)

Hopefully it's something silly like being out of gas!

hondaxl125r · Mon Mar 20, 2006 7:17 am

full tank of fuel i dont have a compresstion teaster what happens if the compressons has go? how can that been fixed cheers luke

#4 Unread post by **Skier** » Mon Mar 20, 2006 11:44 am

Try giving this a read, should give you some more hints, including the answer to your latest question:

http://www.dansmc.com/troubleshooting2.htm

Good luck.