YAMAHA RADIAN RUNS LIKE A PIG

reckless_b · Trackday Trickster Joined: 22 Feb 2009 Karma :

Hi, my 600 radian runs like a pig, last week when I tried it I could only get it to run on half choke,it would rev fine at this and was ridable, my first thought though was stale petrol. During the week I drained off the petrol and put in some fresh, it still runs crap but will hit legal limits quite easily again on half choke, I've had the carbs off and blown everything out used a can of carb cleaner up the various jets. All the plugs are sparking, just ordered a set off e-bay though so I'll be fitting these soon. I have to take the carbs off again though as No1 is flooding, let me tell you this is as bad as taking carbs off the hinckley triumphs. There is plenty of compression does not appear to be any leaks on the inlets, and the bike starts very easily on full choke from cold.I've removed the fuel tap from the tank and that is clear. I'm still leaning towards the carbs and will strip these again if the plugs make no difference, any other ideas anyone? Confused

____________________
40 years on the road on and sometimes off bikes with a very recent OFF

Odie · World Chat Champion Joined: 24 Jul 2004 Karma :

Mate had a radian, it always ran like a bag of shit, funny name though, sound like a washing powder!
____________________
You are so ugly when you were born the doctor said "I?m gonna drop it, if it falls is a rat, if it flies is a bat."

iooi · Super Spammer Joined: 14 Jan 2007 Karma :

reckless_b · Trackday Trickster Joined: 22 Feb 2009 Karma :

this radian really used to run great, I really suspect the carbs but its strange that all 4 would act up together, looks like the carbs will be stripped again, although I didn't find any problems last time, must remember to put my glasses on next time.The new plugs will be here tues or wed so I'll look again then, unless I get sudden inspiration or a inspired suggestion
____________________
40 years on the road on and sometimes off bikes with a very recent OFF

reckless_b · Trackday Trickster Joined: 22 Feb 2009 Karma :

decided to bite the bullet as they say and seeing that there are cracks on the carb stubs ( although I can't see any inside ) I have bought a full set off e-bay from USA about £45 inc postage, postage was the killer being half the total......
____________________
40 years on the road on and sometimes off bikes with a very recent OFF

reckless_b · Trackday Trickster Joined: 22 Feb 2009 Karma :

ok, with the new plugs fitted and still the same running I sprayed around the carb inlet stubs "carb cleaner" around the middle pair the revs increased so I guess it proves that they are pulling air as well. Hopefully all will be ok when the new stubs arrive
____________________
40 years on the road on and sometimes off bikes with a very recent OFF

reckless_b · Trackday Trickster Joined: 22 Feb 2009 Karma :

The saga continues, since the last update I have fitted new carb intake rubbers, £45 ish from the us via ebay for the set of four.The carbs have been on and off more than a brides nighty, and still problems exist. I must be getting close though (he said through clenched teeth) it will idle without choke. I've had a few test runs today, it runs great at higher speeds, 70mph pulls like a train. I popped in the colour tune and the mixture looks ok at idle but try to open the throttle and it just wants to die. I'll try opening the pilot mixture screws tomorrow get them rich and see if that helps. Crying or Very sad

____________________
40 years on the road on and sometimes off bikes with a very recent OFF