HI PPL!! today ive spent the day working on the bike and got it started thanks to all the help i get here!!!! <!-- s --><img src="{SMILIES_PATH}/icon_biggrin.gif" alt="" title="Very Happy" /><!-- s --> but now that i emptied the old fuel out and charged the battery, the bike only starts with a completely open throttle and does not rev nor idle at all! you let go of the throttle and it immediately turns off... <!-- s:???: --><img src="{SMILIES_PATH}/icon_confused.gif" alt=":???:" title="Confused" /><!-- s:???: --> ive been looking through the posts and saw something about ann idle screw.. but not sure where it is or if that is the problem... thanks for all the support guys! im not ready to give up yet!!! Marshall Johnson - Dominican Republic!!!
I would read this post for the setting of the idle screws. Sounds pretty bad that it wont idle at all unless at full throttle. Have you got the carbs sitting on the rubber boots properly ??? It would not idle if it hads bad air leaks... Failing that, the carbs are seriously blocked in the fuel channels I would suspect...
mine does not have exup cables...... <!-- s:cry: --><img src="{SMILIES_PATH}/icon_cry.gif" alt=":cry:" title="Crying or Very sad" /><!-- s:cry: --> so it wont work without the exup? im never gonna find those here....
Mine was doing this when I first got it. The mechanic said that the carbi had flooded with fuel and couldn't beleive that it was idling. Occasionally it would happen while when I stopped for a red light. And still does sometimes. Depending on how bad it is if you leave your starter motor running for about 30 -40seconds with no throttle a couple of times it seems to come back to life. Alternativly find a hill and roll in second gear, hold the starter in and snap the clutch out and eventually it will make a different note.. sounds like a ducati under water haha. and returns to a ruff idle. Also from the left side follow your feul line from the fuel pump into the carbi. just below the hose there is a screw with finger grip. turn this clockwise about an 8th and repeat. This is something that i have reduced the effects of with fuel treatment like injector/carbi cleaner. I have no money left for further investigation but its most likely cause is crud in the needles / jets. hope this help I know how much it sucks to be stuck out in traffic while people yell out "your suppost to ride them not push em.."
Hi Colonialmotion, This what you need to do. 1. Buy new spark plugs. 2. Check float levels. 3. Adjust pilot screws (2 7/8 turns out). 4. Clean renew air filter (clean in hot soapy water). 5. Adjust idle screw. 6. Use minimal throttle when starting the bike, just a couple of millmeters throttle from closed (these bikes flood on start up very easily). 7. Best of all it can all be found on this website. 8. Have a beer. Best of luck we have all been there and lived to tell the story of what to do. If this does not work I have some other mods that could help. What model is your bike as this will help us?
its a 3ln-5 from the research in this site!! dual headlight, deltabox frame, dual disk brakes in front... but i bought it in pieces.. its missing alot of stuff.... im suprised i got it to run! put the chain on and it works ok! but still alot of work to go.. i put a good used engine in it that i found here, and repaired the old carbs. no exup cables <!-- s:cry: --><img src="{SMILIES_PATH}/icon_cry.gif" alt=":cry:" title="Crying or Very sad" /><!-- s:cry: --> .. but i can see where they belong.. does it really need them? <!-- s --><img src="{SMILIES_PATH}/icon_mad.gif" alt="" title="Mad" /><!-- s --> i got it to rev! holding the choke for like 1 minute and the rpms go up, then you can rev till it eventually stalls again... lol! thanks or all the help people! hopeully someday ill be doing the helping! ohh and co0l im not a NEWBIE anymore! marshall - dominican republic
To see if its the exup, down on the exhaust header manifold, take off the little silver cover on the left side, use some plyers (as it can get vey hot) and turn the exup valve so it is open, then try start the bike if it starts YAY you need to sort out the exup issue, if not, try natas suggestions other than that and what natas suggested, im out of ideas
The exup is very important in these bikes, it is also state of the art technology. Yamaha charge way to much for these cables, but like I said you will need them to get your bike running sweet. Also clean your carbies out and check diaphrams for cracks and reset everything as this is the major cause of all problems. Sounds as though you have your hands full building a bike from scratch. Check your wiring to make sure everything is where it should be. Have you done valve clearances as this could be another problem (once again could be expensive is you require shims). Best of luck.
no i havent done valve clearances.... in the shop where i bought the engine they said to just put it in... and apparently it works ok... i guess ill hunt around for the exup cables... i think the yamaha R6 uses them too.. here are some pics of the custom airbox im getting ready to make (filter only).. and of the exup valve... thanks for all the support ! im open to any suggestions about the airbox... <!-- m --><a class="postlink" href="http://i202.photobucket.com/albums/aa244/marshall_084/P3130092.jpg">http://i202.photobucket.com/albums/aa24 ... 130092.jpg</a><!-- m --> <!-- m --><a class="postlink" href="http://i202.photobucket.com/albums/aa244/marshall_084/P3130091.jpg">http://i202.photobucket.com/albums/aa24 ... 130091.jpg</a><!-- m --> <!-- m --><a class="postlink" href="http://i202.photobucket.com/albums/aa244/marshall_084/P3130090.jpg">http://i202.photobucket.com/albums/aa24 ... 130090.jpg</a><!-- m -->