akrievins
New member
Well, this past weekend I cleaned and adjusted my powervalves thanks to Totallyamaha.com. I would never had attempted this had it not been for this site and the geat posts by many of the members.
I took part of two days to do them, but I took my time. I bought the sled used with 800kms, and have only taken these out at just shy of 4000kms. I doubt they were done by the last owner.
Needless to say, they were VERY hard to get out of the sled. The last one required a finishing nail through the PV hole and some WD-40.
Here are some pics.
I took part of two days to do them, but I took my time. I bought the sled used with 800kms, and have only taken these out at just shy of 4000kms. I doubt they were done by the last owner.
Needless to say, they were VERY hard to get out of the sled. The last one required a finishing nail through the PV hole and some WD-40.
Here are some pics.



Danger Dog
Member
WOW! They were dirrrrty.
akrievins
New member
I know, I haven't seen many pics on here with valves as dirty. I was lucky not to have a single pull-through. It was actually quite an easy job, and I will do it once a year from now on.
I will try to tackle the carbs next thanks to this site and these members.
I will try to tackle the carbs next thanks to this site and these members.
PhatboyC
New member
You think the servo motor was still able to pull on them? It must since no pull through right?
daman
New member
Good job man,knew you could do it
,now use a good syn oil.

akrievins
New member
I was really surprised to see no pull-throughs. Those valves were incredibly hard to get out. I must be lucky!
I've been using only Amsoil Interceptor now.... I used a few bottles of Amsoil HP injector oil in the beginning of the year, but I've since used a full 4 liters of the Interceptor. It's all I will use from now on.
Can't wait to see how she'll pull at the Radar runs now! I was beating many of the bigger sleds with valves like these... imagine now!
I've been using only Amsoil Interceptor now.... I used a few bottles of Amsoil HP injector oil in the beginning of the year, but I've since used a full 4 liters of the Interceptor. It's all I will use from now on.
Can't wait to see how she'll pull at the Radar runs now! I was beating many of the bigger sleds with valves like these... imagine now!
Any part of the process that requires any caution or helpful suggestion? I too will be attempting this for the first time over this summer but I am a little nervous about f'n it up.
A little info
It's not that difficult to do...E.R or none E.R. easy...just don't jump the electrical plug (servo feed) with a spare battery like some here have done=burnt servos or zapped CDI boxes...unless you have the Yamie one & instructions...Either sled E.R. (cycle key) or none E.R. (turn idle down to 900rpm) will do the job. here's a link to some good instructions & photos...if you run into a bind, just ask...cheers
http://www.totallyamaha.net/forums/showthread.php?t=45153
wantsnow said:Any part of the process that requires any caution or helpful suggestion? I too will be attempting this for the first time over this summer but I am a little nervous about f'n it up.
It's not that difficult to do...E.R or none E.R. easy...just don't jump the electrical plug (servo feed) with a spare battery like some here have done=burnt servos or zapped CDI boxes...unless you have the Yamie one & instructions...Either sled E.R. (cycle key) or none E.R. (turn idle down to 900rpm) will do the job. here's a link to some good instructions & photos...if you run into a bind, just ask...cheers
http://www.totallyamaha.net/forums/showthread.php?t=45153
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Oil cable gap
Have you checked your oiler cable gap and to be sure the cable is completely seated at the adjustment area? Looks awful oily to me. I also run Amsoil and I have my cable adjusted to 22mm. May be worth checking now that you are becoming more confident.
Madmatt
Have you checked your oiler cable gap and to be sure the cable is completely seated at the adjustment area? Looks awful oily to me. I also run Amsoil and I have my cable adjusted to 22mm. May be worth checking now that you are becoming more confident.
Madmatt
akrievins
New member
I will check that. I have never adjusted those, and I bet it hasn't been done since it came from the factory. The sled is easy on the oil... doesn't burn through much at all. I did warm up the sled before I took the valves out. That might be why they look wet and really oily.
Most of it was hard carbon buildup.
Most of it was hard carbon buildup.
Madmatt said:Have you checked your oiler cable gap and to be sure the cable is completely seated at the adjustment area? Looks awful oily to me. I also run Amsoil and I have my cable adjusted to 22mm. May be worth checking now that you are becoming more confident.
Madmatt
Yamidude59
New member
how do you adjust powervalves? is it easy?
akrievins
New member
I used the article in the tech section to help me out!