Hey guys i hope you could help me!
First of all, my bike is 2004 GT250 Carby with 57,000km last time it was serviced at 37,000km it had the front headgasket replaced and a carburetor syncron, and had a valve clearence check and adjustment at 32,000km.
Last summer my bike once turned off for a sec about at 120km/h, it didnt seized or anything like that because my wheel didnt lock up, it was something like a missing spark or i dont know what... since that the bike has a strange noise around 4500-5000 rpm, approx 50-60kph in third. This noise / sound is like a rithmic ticking it's not getting faster or louder as the RPM raise, and this noise is only appears after the bike is totally warmed up, so i ride about 25-30km without any issue and after that this little irritating ticking noise appearing The bike has its full power, it has a good compression (Both cylinder 170 or more PSi, i think its totally good for a smaller bike thats as old as mine).
Things i know atm about the noise:
The noise is coming from the left side of the bike.
It has nothing to do with the clutch, if i pull the clutch the noise is present, if i dont the noise is still present... So i think its not a clutch bearing or basket problem.
I cant hear this noise at Idle or when the bike is revved in neutral, only when im on the road and riding, but when its get enough warm i can hear the noise when i pull the clutch and rev it too.
I've already changed oil (Motul 7100, i think its a fine full sint oil), oil filter(Champion filter), air filter (Vicma airfilter like OEM one), spark plugs (CR8E -> but in DENSO atm i don know the densos number but its the factory equal of ngk cr8e), i hoped maybe one of them may fix that, but nah...
The bike has a bit erratic idle, idle is somewhere between 1300 and 1600 it walks a bit... (Intake manifolds are new so it cant be an air leak there)
If i pull in the clutch at higher speed, and im not changing gear immidiately and let out the clutch the bike some times turn down, the RPM fall under Idle to around 800 / min then its turning down after that i can restart it again without any problem... (It happens mostly when the weather is colder)
Please help me out with some ideas guys, what it could be? (Here are some videos
This is a cold start after almost two weeks without starting, it runs with some choke on the bike is running around 2500rpm:
https://drive.google.com/file/d/1tjG...ew?usp=sharing
And this is a video when the engine is totally warm, after a longer ride:
https://drive.google.com/file/d/15UC...ew?usp=sharing
Is she sounds normal at idle? What could be this little noise ? And why am i only hearing it when the bike is running in gear ? What is on the left side except generator ? Or it could be the front cylinders top area ? (It has a new CCT, i installed it last spring)
Thanks!
Im in a realy hard situation... i often think about to chage this bike for a bigger but possibly i will go for university and i wont have money to keep up a bigger bike, and we had too many adventure together I prefer to fix the little Hyo for the next years instead change it...
Just in case if u dont know those bikes, they are air oil cooled dohc 8 valve Vtwins, and they are notorius for failing cam chain tensioner thats why i mentioned the front one is a new one.
Thanks for the help!
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