Throttle Body Sync - Now I Seem to be Running Hot!
So after a few months and about 1k miles on my 05 FJR (w/30k miles) I thought it was time to do a throttle body sync. Iím suspecting that it hasnít been done on this bike before. I bought the sync tool and with all the info on this forum and others, I was surprised how easy it was to do. Here is what I foundÖTB #1 was reading 22cm, TB#2 was 22cm, TB#3 was 27cm and TB#4 was 20cm. So what Iíve read, these were out of sync. I 1st brought TB#3 down to 25cm. I tried bring TB#4 up to 25cm but screw bottomed out at 24cm. I could of brought #1 and #2 up to 25cm but that left about 1/8 of a turn of both bottoming out also. So I sync them all to about 24cm. I blipped throttle each time I made adjustment and used tach to confirm 1,100 rpms.
So Iíve heard Yamaha says not to bottom out screws but donít know how to correct or what damage may occur. Is it running to lean? Now that Iím done, #4 is basically closed and #1 and 2 are almost closed and #3 still has about Ĺ turn before closed.
So here is another questionÖis my bike running to hot? I road about 30 miles to see if I would notice a difference and I do feel a better throttle response and smother acceleration. ButÖ My temp gauge last week normally shows 2 bars, 3 bars at slow riding or at a stop. Now it runs mostly 3 bars, 4 bars at slow riding or at a stop..and yes fan kicks on at 4. I did notice 2 bars coming down the mountain without a load. The only change from this week to now is temps here in California went from low 80ís to low 90ís. Could that be the difference? I donít know how many bars should my bike normally show?...and do I need to do something to my TB to get the screws not to bottom out?