Question about Jinlun XR 125 Motorcycles

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Bike don,t start petrol gets to plugs

Has been standing for 4 months

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  • 74 Answers

Drain off the old fuel from the carbs , carb drain screw is on the botton of the float bowl. fill with good fuel and try again.

If no check for spark remove plug fit to coil rest against the head and turn over. Does it spark?

Posted on Feb 23, 2012


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Posted on Jan 02, 2017

  • 38 Answers

SOURCE: fuel starvation

There are three things all at the same time the bike needs to run:

If you use starting fluid into the intake, and it continues the same, then fuel is not the problem

Use a compression tester to see if the pistons come to spec

Check the spark plugs, maybe try changing them with hotter plugs or just new ones. Also check the coils and stator for proper ohms.

You might see a little compression loss by a cam being out of timing, so you might check to see that your cams are timed right.

Posted on Jan 11, 2009

  • 257 Answers

SOURCE: bike left standing for 6 months won't start

Hi, Sitting not good ! That is why the petcock has an off position. Spray some starter fluid or some fuel in the carb intakes and see if cranks, If it does, the carbs have to be disassembled and cleaned. Good Luck to you!

Posted on Feb 25, 2009

  • 232 Answers

SOURCE: my bike is dying at low revs in 30 zones and smells of petrol

its running too rich , too much fuel and needs tuning .

Posted on Sep 26, 2009

  • 11 Answers

SOURCE: truned wont start not getting petrol to plugs took

I would sujest makeing sure that the bowl on carb is full of gas, if that is fine then i would try the times outidle screw, all way snug then turn if 1 1/2, hopefully checked plug first off may be needed to be changed. hope this helps

Posted on Mar 01, 2010

  • 314 Answers

SOURCE: bike has been standing for 3/4 months started

Start the bike till running temp is reached .while the engine is hot ,change the oil and filter.take great care not to burn yourself .When the engine is hot you will find the oil drains away much faster and all the old stale oil will drain out of the engine & gearbox & clutch ..Once you have replaced the old oil with new oil and filter .this should cure the problem of stiff gears .

Posted on Mar 24, 2010

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Todays fuel is so full of crap that if left standing for any length of time will gunge up carb jets. The only solution I\'m sorry to say will be a full strip and clean of the fuel system & carbs. If you don\'t know what you are doing get someone who does. Stripping a carb is no job for the uninitiated.

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Theres no spark and bike wont start

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Bit of a problem go get the bike running.

Can you confirm if the bike, once running, runs well below 3000rpm?

I've experienced this model not liking pilot jet usage due to an accumulation of fine particles in the fuel which build up and block the pilot jets.

Above about 3000rpm, it runs on mains jets.

If this is the problem, you can use a high quality fuel filter but it must be high flowing as this model drinks fuel.

Looking forward to your post.

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1 Answer

Bike left standing for 6 months won't start

Hi, Sitting not good ! That is why the petcock has an off position. Spray some starter fluid or some fuel in the carb intakes and see if cranks, If it does, the carbs have to be disassembled and cleaned. Good Luck to you!

Feb 25, 2009 | 1990 kawasaki ZZR 600

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Put the bike on level ground, support on stands, switch off petrol and drain the carbs. Close the carbs and using the pipe from the tank (disconected) to the carbs fill with a quality carb cleaner and leave overnight. Drain the carbs, connect everything back up and start up. Try and get into the habit of switching off the petrol before you stop the engine, just to partially drain the carbs, esp'ly if you intend to leave for any period of time.

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