03-20-2007, 07:48 PM #1
Does anyone make a reliable Powervalve for the 1200's?
I know the stockers suck (at least the first few years), but who makes one that'll last. Is there a good Yamaha update for a 1200?
Looking to buy some!
03-20-2007, 08:03 PM #2
They updated the powervalves I believe in 2003. the older ones had a history of dropping into the cylinder from the pin sliding/walking out.
03-20-2007, 11:38 PM #3
The R&D ones are really nice and they fit well, they also have an upgraded arm that holds them. I know you were looking for some on the other thread. The gas valves are great a little pricey but compared to the price of R&D valves new the gas valves are my first choice. I think there are some used ones floating around for sale if not Fercho still has some. a lot cheaper than Riva's
03-21-2007, 05:16 PM #4
Philip GPR has some. Gotta see if Fercho has anymore.
03-21-2007, 05:53 PM #5
- Join Date
- Jan 2006
- Texas City, Texas
I think I have some somewhere. 60% of retail if I can find them.
03-21-2007, 06:02 PM #6
- Join Date
- Nov 2006
If you have not dropped a valve then there is a cheaper soultion than buying new valves, You can buy wave eaters clips, these little metal caps go around the top of your stock valve and totally eliminates the chance of dropping a valve. I think they are about $60. they also make the couplers between the cyls and they also help allowing the valves to truly open 100% I think clips and couplers is 100. Sam
03-21-2007, 06:40 PM #7
I've got the wave eaters. Worried about the 99 material that was used, was said to crack and fall apart
05-18-2007, 11:27 AM #8
So buy the Riva ones? I have a 2000 and need to fix that problem. Already had a valve fall but not cause much dammage. I am new to this so where can I buy them.
05-18-2007, 12:23 PM #9
Once you put the WaveEater clips on (at least with the old style clips that included stops) the '99 valves should be as reliable as any other year, or even the R&D valves. Changes were made to the bushing and pin, but the valves and stems remained unchanged in all 66V engines.
My opinion - save the money and go for a Lowell or GroupK 1390BB with the PowerValves fixed in place. Removes all concern about the valves forever, and for me the peace of mind was well worth the cost.
Last edited by smackwave; 05-18-2007 at 04:16 PM. Reason: typos - d'oh!
05-18-2007, 01:29 PM #10
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