Throttle Sync Question

beezer · 05-26-2008, 06:45 AM

I put Kury grips on and often wondered if the FI is in sync and how I would know. I look at the 2 adjustments to see if they are approx. the same but how would one be sure they are?

**ringadingh** · 05-26-2008, 07:46 AM

If you mean the two throttle cables, they should have just a bit of freeplay in them. The cables do stretch over time. The other adjustment is the idle screw. You can check the voltage at the TPS sensor also, but if its running well thats it your done. The throttle body is a single unit shared by both cylinders.

blowndodge · 05-26-2008, 08:33 AM

changing grips doesn't in anyway effect the FI and the associated throttle position sensor.

beezer · 05-26-2008, 08:57 AM

so assuming there's different tensions between the 2 cables most likely, it doesn't affect the overall performance because that's preset by throttle position sensor?

blowndodge · 05-26-2008, 09:00 AM

your cables are hooked on the other end to the throttle bodies which are linked to the TPS and are adjusted on that end, not the other. adjusting the cables end play at the handlebar grips provides no FI adjustment. Just "takes up slack" on the grip end.

05-26-2008, 02:22 PM

If there is enough slack in both cables before you adjust them, it might be possible to mis-adjust them so the throttles don't open all the way, or don't close all the way. Just look inside the right filter cover & make sure that doesn't happen, plus you have about 1/8" play in the cables total, and you'll be fine.

But you must have some play in the cables, so the RPM doesn't change when you steer the bike.

macmac · 05-26-2008, 07:35 PM

I have never checked these cables, but I suspect one pulls the throttle plate open and the other pulls it closed. So what to check is that you have it closing, and it open wide.

beezer · 05-26-2008, 08:35 PM

Ok, thanks :)

05-26-2008, 06:45 AM	#1
beezer Top Contributor Join Date: Aug 2007 Location: The VooDoo Lounge Posts: 5,779	Throttle Sync Question I put Kury grips on and often wondered if the FI is in sync and how I would know. I look at the 2 adjustments to see if they are approx. the same but how would one be sure they are? __________________ 2012 FLHTK Login or Register to Remove Ads
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05-26-2008, 07:46 AM	#2
ringadingh Join Date: Aug 2007 Location: Newmarket Ontario Canada Posts: 35,387	Throttle Sync Question If you mean the two throttle cables, they should have just a bit of freeplay in them. The cables do stretch over time. The other adjustment is the idle screw. You can check the voltage at the TPS sensor also, but if its running well thats it your done. The throttle body is a single unit shared by both cylinders. __________________ 2002 Nomad aka Bountyhunter VBA #27 VROC #18951
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05-26-2008, 08:33 AM	#3
blowndodge Sr. Contributor Join Date: Jul 2007 Location: Washington City, Utah Posts: 16,474	Throttle Sync Question changing grips doesn't in anyway effect the FI and the associated throttle position sensor. __________________ I love my Victory Cross Country Tour 106. Smells like Victory! Ultra's are Limited There are two types of Harley riders. Those that trailer them and those that push them. The most Interesting Man in the World "Find the things in life you don't do well and don't do those things" Member # 0005
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05-26-2008, 08:57 AM	#4
beezer Top Contributor Join Date: Aug 2007 Location: The VooDoo Lounge Posts: 5,779	Throttle Sync Question so assuming there's different tensions between the 2 cables most likely, it doesn't affect the overall performance because that's preset by throttle position sensor? __________________ 2012 FLHTK
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05-26-2008, 09:00 AM	#5
blowndodge Sr. Contributor Join Date: Jul 2007 Location: Washington City, Utah Posts: 16,474	Throttle Sync Question your cables are hooked on the other end to the throttle bodies which are linked to the TPS and are adjusted on that end, not the other. adjusting the cables end play at the handlebar grips provides no FI adjustment. Just "takes up slack" on the grip end. __________________ I love my Victory Cross Country Tour 106. Smells like Victory! Ultra's are Limited There are two types of Harley riders. Those that trailer them and those that push them. The most Interesting Man in the World "Find the things in life you don't do well and don't do those things" Member # 0005 Login or Register to Remove Ads
	0

05-26-2008, 02:22 PM	#6
Guest Posts: n/a	Throttle Sync Question If there is enough slack in both cables before you adjust them, it might be possible to mis-adjust them so the throttles don't open all the way, or don't close all the way. Just look inside the right filter cover & make sure that doesn't happen, plus you have about 1/8" play in the cables total, and you'll be fine. But you must have some play in the cables, so the RPM doesn't change when you steer the bike.
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05-26-2008, 07:35 PM	#7
macmac Sr. Contributor Join Date: Apr 2008 Location: Tamworth New Hampster 06 1600 Posts: 12,484	Throttle Sync Question I have never checked these cables, but I suspect one pulls the throttle plate open and the other pulls it closed. So what to check is that you have it closing, and it open wide. __________________ 06 1600 Nomad Just call me Mac molon labe come and get it
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05-26-2008, 08:35 PM	#8
beezer Top Contributor Join Date: Aug 2007 Location: The VooDoo Lounge Posts: 5,779	Throttle Sync Question Ok, thanks :) __________________ 2012 FLHTK
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