08 Yamaha R1 motor

jamesmotorsportz · 6/24/12, 8:26 PM

Im having trouble with my 08 r1 motor it's getting fuel and turns over and everything seems to be working but has no spark Anyone have any answers

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WBR 3E · 6/25/12, 11:35 AM

This isn't going to sound very scientific, but we have had the same problem. We were told to wiggle the cam timing sensor (located on cylinder head) before starting for the first time that day, and sure enough, has worked everytime since, and starts right up the rest of the night. Take a close look at the wiring connecting the sensor, apparently its easily damaged on the bike in a wreck, make sure you don't have any nicks or breaks. Greg

jamesmotorsportz · 6/25/12, 11:48 AM

Is it on the valve cover or actually on the head

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Bradleyracing86 · 6/25/12, 12:20 PM

Cam sensor connection sounds like a likely suspect.

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WBR 3E · 6/25/12, 12:21 PM

On top of the head, to the front of the spark plugs. The sensor attaches into the head with a set screw, with several wires into the AIS harness if I remember right - if you don't have blockoff plates for the AIS might be hard to notice - look under the vent lines.

Greg

jamesmotorsportz · 6/25/12, 12:41 PM

Ok thanks

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---------- Post added at 12:41 PM ---------- Previous post was at 12:28 PM ----------

I have power to the cam sensor on two of the three wires

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6/24/12, 8:26 PM	#1 08 Yamaha R1 motor
jamesmotorsportz Member Join Date: May 2012 Posts: 164	Im having trouble with my 08 r1 motor it's getting fuel and turns over and everything seems to be working but has no spark Anyone have any answers Posted via Mobile Device

6/25/12, 11:35 AM	#2 Re: 08 Yamaha R1 motor
WBR 3E Member Join Date: Nov 2009 Posts: 218	This isn't going to sound very scientific, but we have had the same problem. We were told to wiggle the cam timing sensor (located on cylinder head) before starting for the first time that day, and sure enough, has worked everytime since, and starts right up the rest of the night. Take a close look at the wiring connecting the sensor, apparently its easily damaged on the bike in a wreck, make sure you don't have any nicks or breaks. Greg

6/25/12, 11:48 AM	#3
jamesmotorsportz Member Join Date: May 2012 Posts: 164	Is it on the valve cover or actually on the head Posted via Mobile Device

6/25/12, 12:20 PM	#4
Bradleyracing86 Senior Member Join Date: Nov 2007 Posts: 1,621	Cam sensor connection sounds like a likely suspect. Posted via Mobile Device

6/25/12, 12:21 PM	#5 Re: 08 Yamaha R1 motor
WBR 3E Member Join Date: Nov 2009 Posts: 218	On top of the head, to the front of the spark plugs. The sensor attaches into the head with a set screw, with several wires into the AIS harness if I remember right - if you don't have blockoff plates for the AIS might be hard to notice - look under the vent lines. Greg

6/25/12, 12:41 PM	#6
jamesmotorsportz Member Join Date: May 2012 Posts: 164	Ok thanks Posted via Mobile Device ---------- Post added at 12:41 PM ---------- Previous post was at 12:28 PM ---------- I have power to the cam sensor on two of the three wires Posted via Mobile Device