Hey all I am definately new to buggies but do understand motor and carbs better than average but no pro. Just built brand new hurricane 250 and idles perfect, gets to about 15mph slowly and then thats it. It bogs down like flooded and have to play with pedal to keep it running. Have checked jets fuel lines, petcock, float, air flow, spark, valves, and coil. I think it idles too well to be air/fuel but this carb is different from anything I have ever used before.(used to 4 stroke Honda and Yamaha quads. I have adjusted the float which got me from 5mph to about 15mph but affraid to go past factory specs. Buggy from idle in nuetral revs about half way studders untill you let of gas a little then by playing with the gas pedal I can get it to rev to limit. In drive when it hits the dead point you can let off gas slightly and get a few hundred more rpm at a time but will never go through rpm range smoothly. Almost seems like once it catches on it revs to peak rpm in like 1 second. I have been working on this for 4 days now after work and am completly lost. Any suggestions are welcome. Whats 10 more times of taking the carb off at this point? lol Gotta love a project. Oh yea sorry about the beer thing but I need all the help I can get.
random title but i have a suggestion lol um have you call your dealer like who ever you bought it from _________________ 06 joyner 250 sand viper,red metallic..blue clutch spring 17 gram sliders
well i will get the ball a rolling,probably just be a gutter ball
white plug (lean) did you notice what size main is in it, maybe the stock jet is not big enough for your elevation
getting it up to 15mph and guessing you are about 1/4 1o 1/2 way in throttle just about time for the main jet to take over.so maybe you are getting more air then fuel causing it to bogg.
what about your intake have you check it for leaks and vacuum line for splits, if you have a vacuum petcock.
pud _________________ 2006 sunl 150b
Dr. pulley 10 gram sliders, 1500 torque spring,39 tooth sprocket,2000lb winch, red neck uni filter, 125 main jet at 1,450 elevation, drilled out exhaust,ngk iridium plug,performance intake
trying a set of 10gram rollers now
Ageekwithabuggy-I have and am checking with awesomebuggy for help. Have been on the phone with them several times. Seem helpful and getting better but not fixed yet. TY (no beer for u.)
Pud- not sure what # on main jet but AB says stock main jet is fine for me (Indiana) and vacume lines are good but if plug looks lean then why would it run better with more airflow. I can get to 20+ with minimal dead spot. Now running about 25%. Without airfilter running about 70%. Confused on lean plug. 2beers for u.
Will send beer of choice with correct fix to problem.
Ageekwithabuggy-I have and am checking with awesomebuggy for help. Have been on the phone with them several times. Seem helpful and getting better but not fixed yet. TY (no beer for u.)
Pud- not sure what # on main jet but AB says stock main jet is fine for me (Indiana) and vacuum lines are good but if plug looks lean then why would it run better with more airflow. I can get to 20+ with minimal dead spot. Now running about 25%. Without airfilter running about 70%. Confused on lean plug. 2beers for u.
Will send beer of choice with correct fix to problem.
Thank you
sorry about that forgot about in your topic title on running it without air filter.did you check your plug to see what color it was before before you took air filter off and run it.?
i don't know if you have tried this but have you check the wires plugging into cdi, sometimes those little wires push out of the plug when the plug end is push into the cdi and they don't make good contact.
i know that sounds out in left feild but trying to help eliminate possible problems
pud _________________ 2006 sunl 150b
Dr. pulley 10 gram sliders, 1500 torque spring,39 tooth sprocket,2000lb winch, red neck uni filter, 125 main jet at 1,450 elevation, drilled out exhaust,ngk iridium plug,performance intake
trying a set of 10gram rollers now
i cant drink beer any way no problems here just a suggestion cause i really have no idea _________________ 06 joyner 250 sand viper,red metallic..blue clutch spring 17 gram sliders
I would check the main jet and body of the carb. the stock main should be 112-117, the pilot should be a #35-#42
sounds like it runs ok on the pilot side then is not getting getting enough fuel for the main.
you still have all the stock air box on it?
also check the spark plug wire at the boot, the connectors at the cdi _________________ Blade buggies,Carter buggy's, ams (manco) , joyner, parts for almost anything
MRP dealer
Tucker Rocky Dealer
Vega Helmet dealer
I.T.P. tire and wheel dealer
www.mcdonoughpowersports.com
Thank you guys for throwing ideas my way. I appreciate them good or bad.(only bad if it blows up)Hey geek not mad at u just having fun. Pud- I havent checked plug with and without air filter because I can only run for a short time before bogging and shut down. Not long enough to change plug color I dont think. I am going to check cdi now to see if connections are good. I have checked spark at plug and it is correct. Bige- Carb jets are clear and bowl is clean. Will have to look again tonight to see jet sizes but should be stock because it is new. AB had me change float height. They said if it is to high I will know by fuel on floor. When I changed it the first time I went to the max of the factory setting and it made a big difference over what I had so maybe I will also try to go a little farther with that. Just dont want to be overcompensating for some other problem. Yes to the stock air box. Also would like to know if Pud notices a difference in sliders/rollers. I am going to change exhaust-jets-intake-filter-sliders and springs soon but needs to run right stock first. Thanks again guys and keep the suggestions coming.
what was the measurement on the float height? _________________ Blade buggies,Carter buggy's, ams (manco) , joyner, parts for almost anything
MRP dealer
Tucker Rocky Dealer
Vega Helmet dealer
I.T.P. tire and wheel dealer
www.mcdonoughpowersports.com
Awesome buggy carb tech said that with bowl off turn carb up to just past 90 deg untill float just closes pin without excessive pressure just barely touching. Then the float should be parallel with seal where float bowl sets. (+ or - 2 deg) Was way out of wack and adjusted to parallel did better and just moved it to 2 deg past and no better or worse. Can air fuel mix affect top end? Because now I get about 50% throttle with a long bog with lots of studdering will slowly catch up over a quater mile or so then tac out. Runs so much better without air filter. Still not perfect but much better. In nuetral withou air filter on great throttle response through entire power band, but in gear still boggs at half throttle then picks up slowly. Checked all elec connections including cdi and they all look good to me.
Articles
