83 VF750F valve adjustment question

my83 · 09-06-2008, 02:10 PM

hello, i'm new to the vfr community. i have rebuilt a 83 vf750f which i bought all taken apart. sorry no pic's yet. my question is in regard to valve adjustment. i have started out at tdc at the indicated t1-3 and adujusted the clearances on cyl. #1 (left rear). next rotating ccw 90 degrees to t2-4 to adjust cyl. #4 (right front) the rocker arms are not loose and the cam lobe is in a position where i can't get a wrench on to loosen the locknut. now the odd part, the rocker arms for cyl. #2 (left front) are loose and those valves look ready to be adjusted. after rotating ccw 270 degrees again to t1-3 cyl. #3 (left rear) could be adjusted. then rotating ccw 90 degrees again to t2-4 cyl. #4 is know ready for adjustment. it seems to me that cyl #2 and #4 cams are somehow reversed or am i missing something. i am not new to motorcycling i have been riding 20+ years and have done this kind of work all along. any help would i can get would be great.

my83 · 09-08-2008, 06:11 AM

the vavle problem has been fixed. someone must have worked on the motor before i got it and when replacing the cams did not index them properly.

derstuka · 09-08-2008, 09:46 AM

Hello and welcome to the forum. Glad you got the valve issue worked out.

masonv45 · 09-09-2008, 12:07 PM

Make sure you either use the Honda cam tool or put a feeler gauge under each screw for the side you are adjusting. Otherwise, the cam can rock in it's mounts and give you a false reading...

my83 · 09-09-2008, 12:59 PM

thanks for the info. i have a honda shop manual for this bike. i just need to get another feeler gauge so that i have two of the correct size.

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09-06-2008, 02:10 PM	#1 (permalink)
my83 Junior Member Join Date: Jul 2008 Last Online: 11-20-2008 02:25 PM Location: Elgin, Illinois My Ride: 1983 VF750F 1986 Concours Posts: 3 Thanks: 0 Thanked 0 Times in 0 Posts	83 VF750F valve adjustment question hello, i'm new to the vfr community. i have rebuilt a 83 vf750f which i bought all taken apart. sorry no pic's yet. my question is in regard to valve adjustment. i have started out at tdc at the indicated t1-3 and adujusted the clearances on cyl. #1 (left rear). next rotating ccw 90 degrees to t2-4 to adjust cyl. #4 (right front) the rocker arms are not loose and the cam lobe is in a position where i can't get a wrench on to loosen the locknut. now the odd part, the rocker arms for cyl. #2 (left front) are loose and those valves look ready to be adjusted. after rotating ccw 270 degrees again to t1-3 cyl. #3 (left rear) could be adjusted. then rotating ccw 90 degrees again to t2-4 cyl. #4 is know ready for adjustment. it seems to me that cyl #2 and #4 cams are somehow reversed or am i missing something. i am not new to motorcycling i have been riding 20+ years and have done this kind of work all along. any help would i can get would be great.

09-08-2008, 06:11 AM	#2 (permalink)
my83 Junior Member Join Date: Jul 2008 Last Online: 11-20-2008 02:25 PM Location: Elgin, Illinois My Ride: 1983 VF750F 1986 Concours Posts: 3 Thanks: 0 Thanked 0 Times in 0 Posts	problem fixed the vavle problem has been fixed. someone must have worked on the motor before i got it and when replacing the cams did not index them properly.

09-08-2008, 09:46 AM	#3 (permalink)
derstuka CrAcKbRaInEd MoDeRaToR Join Date: Jan 2007 Last Online: Today 09:06 PM Location: San Diego, CA - Find Me! My Ride: 1998 Honda VFR800FI View my Photo Gallery Posts: 3,567 Thanks: 17 Thanked 123 Times in 86 Posts	Hello and welcome to the forum. Glad you got the valve issue worked out. __________________ ~Jason San Diego Riders click here >>>> San Diego County Area Riders (SCAR) --------------------------------------------------- 1998 VFR800 Two Brothers CarbonFiber Slip-on ZG Double Bubble Oxford Hot grips BMC Air filter Thurn Motorsports Aluminum Chainguard Knurled Aluminum Footpegs

09-09-2008, 12:07 PM	#4 (permalink)
masonv45 Senior Member Join Date: Apr 2007 Last Online: Yesterday 11:27 AM My Ride: 1985 VF700F Posts: 694 Thanks: 0 Thanked 17 Times in 16 Posts	Make sure you either use the Honda cam tool or put a feeler gauge under each screw for the side you are adjusting. Otherwise, the cam can rock in it's mounts and give you a false reading... __________________ 1985 VF700F 1983 V45 Magna Gone but not Forgotten Memphis, TN

09-09-2008, 12:59 PM	#5 (permalink)
my83 Junior Member Join Date: Jul 2008 Last Online: 11-20-2008 02:25 PM Location: Elgin, Illinois My Ride: 1983 VF750F 1986 Concours Posts: 3 Thanks: 0 Thanked 0 Times in 0 Posts	thanks for the info. i have a honda shop manual for this bike. i just need to get another feeler gauge so that i have two of the correct size.

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