Hi all. Here's the issue with as much detail as I can on what has happened..
Picked up a 2002 J3 (Canadian model) 3 weeks ago for the Mrs which drove absolutely fine until yesterday night. The only mods are a Yoshi pipe and K&N filter. Previously owner said carbs were sync'd. I noticed it wasn't that well looked after so did the following over the last five days (It was on a rear stand for 5 days too, angled a little forward due to lack of front stand):
1. Complete fairing removal including nose
2. Coolant flush with proper Kawasaki aluminum safe coolant (was thick and soupy)
3. Oil change using Kawasaki S4 10w40 synthetic (was black and burnt smelling)
4. Rewired LED turn signals to make splices waterproof
5. Pulled and cleaned K&N filter (had to pull tank obviously)
6. Greased suspension using grease nipples (don't think they were ever done)
7. Adjusted levers to make them fall better inline with hands
8. Did the manual CCT adjustment as written up here (no more tic!)
All procedures followed the service manual found here. Thanks BTW!
Everything worked fine, fired right up with no issues and I let it warm up well before driving. Took it for a test drive and first gear + RPM's would go as far / fast as I wanted. Shifted to 2nd and once I hit 4500 RPM's it bogged. It seems to sputter like it is getting intermitant fuel. Good fuel flow for about a second, then bogs down again, and repeats. Got to the point where I had to use 1st gear just to get up a slight hill. Again, 1st gear is fine and it free rev's like crazy. Also tried 3rd gear, but as soon as it hits 4500 RPM, it bogs. Never got to 4th. It never stalls out either.
The only things I can think of is that perhaps there is a vacuum line that I pinched, but the only one I can recall moving (never removed from tank, just pulled out wth tank) is the one that hangs off the rear of the tank. The only fuel line I removed was the small one from the petcock to the filter. I did notice that when physically pressing the petcock in towards the centre of the bike, it would leak fuel with the hose off. The large side ram air tubes where removed with the nose, as well as the single small Y type one in the middle of the nose fairing.
Right now I'm at a loss as it's my first sportbike, not my first bike though.
Any ideas? I'mm going to tear it apart tonight and double check the ram air system and vacuum line, pull the plugs, but any other suggestions?
When I told the wifey about the issue, she just looked away from me.. :O
Picked up a 2002 J3 (Canadian model) 3 weeks ago for the Mrs which drove absolutely fine until yesterday night. The only mods are a Yoshi pipe and K&N filter. Previously owner said carbs were sync'd. I noticed it wasn't that well looked after so did the following over the last five days (It was on a rear stand for 5 days too, angled a little forward due to lack of front stand):
1. Complete fairing removal including nose
2. Coolant flush with proper Kawasaki aluminum safe coolant (was thick and soupy)
3. Oil change using Kawasaki S4 10w40 synthetic (was black and burnt smelling)
4. Rewired LED turn signals to make splices waterproof
5. Pulled and cleaned K&N filter (had to pull tank obviously)
6. Greased suspension using grease nipples (don't think they were ever done)
7. Adjusted levers to make them fall better inline with hands
8. Did the manual CCT adjustment as written up here (no more tic!)
All procedures followed the service manual found here. Thanks BTW!
Everything worked fine, fired right up with no issues and I let it warm up well before driving. Took it for a test drive and first gear + RPM's would go as far / fast as I wanted. Shifted to 2nd and once I hit 4500 RPM's it bogged. It seems to sputter like it is getting intermitant fuel. Good fuel flow for about a second, then bogs down again, and repeats. Got to the point where I had to use 1st gear just to get up a slight hill. Again, 1st gear is fine and it free rev's like crazy. Also tried 3rd gear, but as soon as it hits 4500 RPM, it bogs. Never got to 4th. It never stalls out either.
The only things I can think of is that perhaps there is a vacuum line that I pinched, but the only one I can recall moving (never removed from tank, just pulled out wth tank) is the one that hangs off the rear of the tank. The only fuel line I removed was the small one from the petcock to the filter. I did notice that when physically pressing the petcock in towards the centre of the bike, it would leak fuel with the hose off. The large side ram air tubes where removed with the nose, as well as the single small Y type one in the middle of the nose fairing.
Right now I'm at a loss as it's my first sportbike, not my first bike though.
Any ideas? I'mm going to tear it apart tonight and double check the ram air system and vacuum line, pull the plugs, but any other suggestions?
When I told the wifey about the issue, she just looked away from me.. :O