erixx

ok mate, no problem, good idea! :icon_clap:

OK, so the TPS was cracked, or the carb was cracked at the base of the TPS? Mike yeha, thats what i tried to explain: the carb body was cracked (like a hair) starting at the base of the TPS

hi, it started at the base of the TPS (where it is screwed to the carbs), and was 2 cm long. Not visible if its cold. Must have had a terrific effect on the inside pressure and air/gas mix! thanks again for all the support! I have beers waiting for all of you here in Valencia!

Next step: the swing arm

SOLVED! A shame i did not take a pic... On the side of the carburators where the position sensor is, there was a invisible crack (sp?), that only was discovered after desasembling the thing a second time, cleaning it again and using a special product (it stinks). It was rebuild and now the bike is fine! Everything else is fine (they inspectioned every bloddy thing!) I wonder if anybody ever suffered this... Thanks for the support!

Thanks for the fast reactions, my brothers! Definately i will tell the mech to look at the diafragms (those weird things lol) and fuel lines. He isn't a bad mech, but has opened a new shop and is very busy lately, he was the XX specialist here in the past and always been up to the task. My Bird has 140.000 km behind, a friend of mine with 150.000 km on his bird also fitted new ...err... pistons... I really don't harm my bike when cold or anytime, but i have done lots of trackdays... must be that. Next week he will fix it or fix it!

Hi again!!! i have not writen any news in this thread becasue there was no news! My shop told me to wait until the parts arrived, but then some parts were still not there. He ordered the accelerator sensor (my Bird is the Carb'ed) and 4 rubber rings that fix the carbs to the cilinders (theses came after 1 extra month! ....) The sensor and some rings needed replacement, were replaced, the bike given to me... BUT still the same problem... My mechanic told me cylinders 2 and 3 have lost compression, but IMHO that can't be the cause of this frustation. I have riden the bike since, before returning it to the shop... The horrible engine sound and nearly ABSOLUTLY loss of power, always occurs after fast acceleration up to high speed in minimum time (if i do not accelerate hard i can ride all day without any problem) Also, when this problem occurs, if I stop 15 minutes the bike is ok again, and i can accelerate all i want in neutral and it doesn't occur. Voltages, amps were checked, air intakes where checked... My mechanic is a bit lost, and so am I. Might be the R1 regulator? Some membrane in the carbs? Only occurs when fast riding on the highway, never in city or canyons.. WHAT CAN THIS BE? HEEEEEEEELP... I love my bike and for the first time in 6 years i'm thinking about selling it.... horror!

hi guys, i'm still not able to give any conclusions, but i will ASAP!! Thanks a lot in the meanwhile! :icon_clap:

Thanks, but how can only high speed cause the problem if its the diaphragm? :icon_think:

thanks all, but still no go. The bike has not been standing still ever. There was a 'screwed' screw in the airbox top (plasic) letting air pressure out i fixed that, thinking that was the problem, test ride, still a problem. Today she's going to the shop... will tell... OMG...

Thanks for the response Airborne! For sure, i should have go ahead with removing parts... maybe tomorrow saturday. My air filter is clean and i have never had spark plugs problems, but who knows! I will try to clean the carbs and check the plugs... Thansk again, and if somebody knows this problem description, it would be great to hear from you! :icon_clap:

Hi! after reading ev erything in this forums, without finding exactly the same scenary, i need to ask you for help, mainly because my shop has given me a date.. next month! Description: - The engine is nearly running fine at startup and during city or mountain riding. -But as soon as I once open the throttle fully and go into warp speed (over 100 mph) the engine starts to cough, to rattle, losing power, consuming more petrol also. It clearly sounds as if only one or two cylinders are exploding properly. - Sometimes a quick full throttle clears it for a short time, most part of the time, after this starts, the throtlle doesn't do anything anymore, i can open it, nothing happens. - If i ride cautiously with low throtle i can keep on riding, and bring it home. - After this symptom occurs, the bike won't go back to normal and good running, even if I return to city riding. - But.... when the engine has been off for about 30 minutes, everything is fine until I go fast again... I know i should start checking the plugs, but i can't manage to take the air box fully off. Sometimes it looks like fuel problems, sometimes electrical, sometimes air box or valve problems... i'm so confused by the syntoms! I have had fuel or electircal problems with other bikes and the problem was so obvious to me, but i just can't understand why at high speed i got problems, but not at aggressive mountain riding.... :icon_wall: Thanks in advance oh sages of the XX!!!! :icon_clap:

hehe i drilled the stock cans (6 holes per can) and thought it was cool... but then all my friends said it sounded like a rotten exhaust, so... first i sealed the holes with high-temp 'gum'.... LAter i got myself aluminium feather weight cans... What a difference (weight, sound and clearance!!!!)

Conclusion : headers fitted and fine!!!! thanks mates

Crypt, you understand i first will try to buy it on this side of the ocean, ok mate