Post by jake aka:ventoscoot on Aug 16, 2010 12:01:21 GMT -6
loud metalic clacking sound. NOT valves. Hope it's not the main bearing. drainied oil and refilled, same sound. drained gear oil, clearly has been leaking slowly because not enough came out. then stripped out the drain plug threads when I put it back in. Trip to Harbor Freight for helicoil coming up. The sound seems like it is coming from the engine, not the top end. Also seems to be coming from teh left side if you are facing forward and toward the bottom. It almost sounds like something is loose and rattling. The sound is not there when it is idling. Pulled the valve cover, set to TDC and valves were fine. Also pulled off the CVT cover to see if there was anything going there, but did not see anything wrong there. Let me know what to check. Rode it last, on Friday night, rode just fine, did not seem to have any problems. I did notice the sound riding home, but thought it was my exhaust tip rattling. Got to get this fixed before Friday, got a three day Rally!!
2007 Vento Phantom GT5 150cc(160cc w/59mm kit) Iridium plug, MRP coil and CDI UNI Filter, Custom exhaust with O2 Sensor, 28mm FS carb LED forward assist lighting and ground effects, Tail Mods, removed stock air box and all CARB crap, new head with no EGR valve. And a bunch of other crap!! THE PUNISHER!
Post by jake aka:ventoscoot on Aug 16, 2010 13:36:29 GMT -6
no metal shavings in the oil. I poured it through a fine screen (don't tell the wife it was from the kitchen) and at teh same time had a magnet in the stream. Oil looked completely normal for about 600 miles or so. I will go fire it up in a minute to check the sound.
2007 Vento Phantom GT5 150cc(160cc w/59mm kit) Iridium plug, MRP coil and CDI UNI Filter, Custom exhaust with O2 Sensor, 28mm FS carb LED forward assist lighting and ground effects, Tail Mods, removed stock air box and all CARB crap, new head with no EGR valve. And a bunch of other crap!! THE PUNISHER!
Post by jake aka:ventoscoot on Aug 16, 2010 14:14:56 GMT -6
@ harbor freight now getting helicoil and one of those stethascopes. Will post a vid asap.
2007 Vento Phantom GT5 150cc(160cc w/59mm kit) Iridium plug, MRP coil and CDI UNI Filter, Custom exhaust with O2 Sensor, 28mm FS carb LED forward assist lighting and ground effects, Tail Mods, removed stock air box and all CARB crap, new head with no EGR valve. And a bunch of other crap!! THE PUNISHER!
I have seen where the ignition sensor will come loose and start hitting the little raised magnet on the flywheel. Its easy to check, just take the fan cover off and inspect. Usually there will be little metal pieces on the trigger.
2009 Tank Touring 150/250 DE 2008 JCL MP-050B 2008 Verucci 1998 Honda CBR1100XX Blackbird
Post by jake aka:ventoscoot on Aug 16, 2010 17:57:35 GMT -6
Jon, that is the one I got. Posting a vid with sound here in a second.
2007 Vento Phantom GT5 150cc(160cc w/59mm kit) Iridium plug, MRP coil and CDI UNI Filter, Custom exhaust with O2 Sensor, 28mm FS carb LED forward assist lighting and ground effects, Tail Mods, removed stock air box and all CARB crap, new head with no EGR valve. And a bunch of other crap!! THE PUNISHER!
Post by jake aka:ventoscoot on Aug 16, 2010 18:14:08 GMT -6
Here is the sound. Checked the flywheel and the tensioner and a looks OK. The sound does not kick in until close to 2500 RPM or so, maybe a little higher.
2007 Vento Phantom GT5 150cc(160cc w/59mm kit) Iridium plug, MRP coil and CDI UNI Filter, Custom exhaust with O2 Sensor, 28mm FS carb LED forward assist lighting and ground effects, Tail Mods, removed stock air box and all CARB crap, new head with no EGR valve. And a bunch of other crap!! THE PUNISHER!
Broken valve spring? Or, possibly a bad wrist pin, I had a Honda 150 Dream that did that, turned out to be play in the wrist pin. Got a new one, no more noise!
Post by jake aka:ventoscoot on Aug 16, 2010 18:36:45 GMT -6
Here is a different version. I realized after watching the other one, I was moving the camera around a LOT. This one starts with the camera above the engine, on the side by the variator, and on the side by the flywheel. Hopw this helps.
I used the stethoscope and it seems the sound is comming from the area below the starter or in a line side to side in that area. It also seems the sound does get faster with the RPM's and as I stated, seems to start at about 2500 PRM's or so.
2007 Vento Phantom GT5 150cc(160cc w/59mm kit) Iridium plug, MRP coil and CDI UNI Filter, Custom exhaust with O2 Sensor, 28mm FS carb LED forward assist lighting and ground effects, Tail Mods, removed stock air box and all CARB crap, new head with no EGR valve. And a bunch of other crap!! THE PUNISHER!
Post by jake aka:ventoscoot on Aug 16, 2010 18:37:56 GMT -6
I'm gonna take the whole top end off tonight and start inspecting I think. The sooner ai figure it out, the sooner I can get parts if I need them.
2007 Vento Phantom GT5 150cc(160cc w/59mm kit) Iridium plug, MRP coil and CDI UNI Filter, Custom exhaust with O2 Sensor, 28mm FS carb LED forward assist lighting and ground effects, Tail Mods, removed stock air box and all CARB crap, new head with no EGR valve. And a bunch of other crap!! THE PUNISHER!
Post by jake aka:ventoscoot on Aug 16, 2010 19:21:43 GMT -6
OK, took off the top end and I think I found my problem!! Glad I caught this now before it came off in the engine! Took a bunch of pics, so this is a link to the album. That way I don't have to re-size the pics. What causes this? There is about 1500 miles on this top end. The pic of the head/combustion chamber is just for reference. I think it looks fine. I will clean it up a little though before I put it back on. s699.photobucket.com/albums/vv353/ventoscoot/top%20end%20problems/
2007 Vento Phantom GT5 150cc(160cc w/59mm kit) Iridium plug, MRP coil and CDI UNI Filter, Custom exhaust with O2 Sensor, 28mm FS carb LED forward assist lighting and ground effects, Tail Mods, removed stock air box and all CARB crap, new head with no EGR valve. And a bunch of other crap!! THE PUNISHER!
..BAD TO THE BONE..
