hi people im new to this site. ive got a fzr250 exup 3ln6 its been stood for 16month and im wondering if you would be able to help me with a problem im getting. my bike wont start it and keeps backfiring and help i get on this woul be really appreciated thanks <!-- s:angry: --><img src="{SMILIES_PATH}/th_Angry.gif" alt=":angry:" title="angry" /><!-- s:angry: --> HELP HELP please.....i have put new plugs in,new oil and oil filter done,made sure all 4 plugs have a spark and they do,know the fuel is getting to the carbs ok.but i am having trouble putting the airbox back on right and air tight any ideas anybody????????
When you put in the new plugs, did you reconnect them correctly? It sounds to me like your spark plug wires are out of order.
yes think i put them back in the right order...for the plugs for the 3ln6 im sure its 1243 from left to right,but could have that wrong?????
thats the problem i know 1 and 2 are right but not sure about 3 and 4 or is it 4 and 3 on the right side.....
yes thats the 1st thing im going to do today when i start working on the bike..have you any easy ways to fit the airbox back on????everytime i try to get it on it just keeps coming of so easy and its doing my head in now,just cant get the thing to stay on and air tight and thanks for the help.as you can tell i have not been working on bikes long and until this site could not get no info for my 3ln6...
The best way to get the airbox back on is to fix the boots - get a crockpot from the local rummage sale, then soak them in hot coolant overnight. The conditioners in the antifreeze (which stop your hoses from turning into rocks that burst under pressure) will leave the carb rubbers silky and manageable. A hairdryer will also soften them and do the trick, but you have to do it each time. If you're tuning your carbs and have the airbox on and off frequently, sorting it out is easiest and less time in the long run. Avoid petro lubes / oils / greases, as these will attack and harden the boots, leading to hardening and cracking, causing air leaks and making it hard to get the airbox on and off ... <!-- s:alcoholic: --><img src="{SMILIES_PATH}/icon_all_coholic.gif" alt=":alcoholic:" title="Alcoholic" /><!-- s:alcoholic: -->
Just on the plug leads, they go two leads into one coil and one coil does the inner two cylinders and the other does the outer two cylinders. Have you drained the fuel from the cabs and tanks and put fresh stuff in? Petrol goes stale if the volatile components in it can evaporate, particularly in carbys through the breather vents.
Sorry - just read this again, missed it the first time. The FIRING ORDER is 1-2-4-3, but the PLUG WIRES are numbered 1-2-3-4, and should be installed as such. If you have the #3 wire on the #4 cyl and vice versa, then yeah - silly things are going to happen.
