2000 IS - No power Scotty

[Iswing]

Hi, I have restored a 2000 IS with 27K.  The bike ran good before restoration.  The runs fine, but does not have the zip it did before.  I open the throttle, and it sounds like its trying to go, but does not have pickup.  It likes like the timing is retarded.  I changed the timing belts, and lined up all the marks.  No backfires, run smooth, but no zip.  What did I do wrong?

[sandy]

Sounds like a fuel delivery issue. Check vent line. Do you have any fuel line changes? Any added fuel line changes usually reduce fuel delivery.

[Madmike]

Hi, I have restored a 2000 IS with 27K.  The bike ran good before restoration.  The runs fine, but does not have the zip it did before.  I open the throttle, and it sounds like its trying to go, but does not have pickup.  It likes like the timing is retarded.  I changed the timing belts, and lined up all the marks.  No backfires, run smooth, but no zip.  What did I do wrong?

Did you have the tank off??  Maybe kinked line from petcock to carbs??  Stock petcock??  Bad vacuum line from #6 to petcock so not opening fully??

[Jims99]

How long did the carbs sit while you did everything. I had the same issue with mine, ran perfect (so I thought) but no get up and go like my tourer. Pulled filter box and realized 1 slide wasn't opening. Pulled and rebuilt carbs and now it runs perfect. If they sat for a bit, could be something as simple as that.
I would check all intake tubes and make sure they're all on and seated correctly, no vacuum leaks. Depending on how much you took apart I would also make sure the coils are all back in order and firing.
Sounds like something simple just need to find it.