Thanks to all for your feedback and help.
I have an update on my R1. I went to the dealer last Sat to pick-up my bike so I can have a look at the valves myself, and take the bike to an indy with some experience with these motors. I was told earlier that week that the bike was re-assembled and ready for pick-up. It was not re-assembled when I got there and I was told I’d have to wait 2 hours. Lack of communication at the dealership cost me time. Going back today to get my bike.
Spoke with the owner of the dealership last Saturday. He is a former mechanic. He said they were unable to pin-point the problem and suggested they start tearing down the bike to find it. He said they would check everything on their way down to the crank and main bearings. He said the problem was obviously not the cam-chain tensioner and said he thinks it was installed and then removed by his shop, and I will only be charged for the 3 hours of diagnostic that I initially agreed to. The dealer said the valves/valve guides look fine but couldn’t tell me anything about compression test results when I asked. The dealer said he thinks I have a light knock, high and on right side of the motor…probably not main bearings, but can’t be sure until the teardown. Worst case scenario…complete rebuild replacing all bearings/seals and new crankshaft if needed…$3,200-3,300 out the door. He said the crank is probably OK so that would save $700 for a new crank, however the original crank might need some journal work too.
Just to remind everyone…Yamaha told dealer my problem is probably a main bearing failure, probably resulting from the use of the Purolator Pure One PL (car) filter. Too many “probaby’s”…I’m not buying that yet! Too many R1/sportbike owners here and on other forums have used this filter without problems…the calci.com site recommends the Pure One PL line for bikes. Furthermore, no one, even critics of this filter, are able to produce any independent testing/comparison of the oil flow rate/pressure drop through the PL filter I used, and the OEM filter. I would love to see some real data for both filters compared side-by-side, and see flow rates/pressure drops results before and after these filters, at conditions (oil pump pressures) that replicate various RPMs in the R1 motor. Any takers?? There are also claims here and elsewhere that even Purolator recommends their ML line of filters for motorcycles. Then I read that Purolator’s ML line is actually made overseas by another company and is inferior in quality to the PL Pure One filters….and it is likely that Purolator’s warnings for PL filter use in MCs is simply a marketing ploy to prevent competition between their PL and ML filters. Right now, I tend to believe R1 owners who have used this filter without problems.
Bottom line…The dealer are nice people but I expect when push comes to shove they will ultimately back Yamaha and not me…it’s their bread n butter. Will they be honest during the re-build if they find the problem is actually a Yamaha issue/defect?..., or simply tell me “yup, it was the main bearings!” and you owe us $$$. And what about Yamaha? Would it be the first time in history a manufacturer realized they might have a problem, and then launched a damage-control campaign where Customer Service institutes various levels of push-back to frustrate owners into paying out-of-pocket for these types of issues?? Especially in this economy??!!
All good questions for which I do not yet have firm answers…
My plan: 1) Look at the valves myself and do compression tests per the advice of forum member to rule-out the valve problem. 2) Take the bike to an independent mechanic with lots of experience rebuilding these motors…let indy have a listen and tell me what they think is the problem before starting a rebuild. I know for a fact mechanics with lots of experience repairing a particular motor have learned the abnormal engine sounds representative of a specific problems, and can do a better job at pin-pointing the cause of problems during diagnosis. I don’t think the dealer is able to do this for whatever reason.
Anyone with the oil filter testing results mentioned above??
Can anyone give me the name of an experienced indy mechanic in my area? I live about 45 minutes north of Philadelphia off of I-95.
I hope this saga helps other R1 owners. If this ends up looking like a Yamaha problem...I will have a 2008 R1 -and- a 2010 Raider S for sale...and will never speak the words Yamaha or buy a Yamaha product again...