traxx2003 Posted August 5, 2012 Report Share Posted August 5, 2012 Hello! Newbie with stupid question; I was giving my bike a quick look over before heading out, and noticed that there is oil residual around my V-Force reed valves. Specifically where the reed valve cage comes in contact with the cylinders. Also where the carbs rubber mount come in contact with the reed valves. I did installed the provided gaskets that came with the valves. Is this a sign that I do not have a good seal between my cylinders, reed valves and carbs mounts? Should I be concern? or it is normal operation? Should I have apply a thin film of rtv during installation? Thanks!! Quote Link to comment Share on other sites More sharing options...
Surfrjag Posted August 5, 2012 Report Share Posted August 5, 2012 i always apply some yamabond on the reed gaskets, its a very comon place for it to leak. Quote Link to comment Share on other sites More sharing options...
BigRed350x Posted August 5, 2012 Report Share Posted August 5, 2012 Hello! Newbie with stupid question; I was giving my bike a quick look over before heading out, and noticed that there is oil residual around my V-Force reed valves. Specifically where the reed valve cage comes in contact with the cylinders. Also where the carbs rubber mount come in contact with the reed valves. I did installed the provided gaskets that came with the valves. Is this a sign that I do not have a good seal between my cylinders, reed valves and carbs mounts? Should I be concern? or it is normal operation? Should I have apply a thin film of rtv during installation? Thanks!! There is no need to use RTV on intake gaskets if you do things correctly and everything is clean. Did you do a leak-down test after installation? I wouldn't ride it until you do a leak-down test and verify that you do not have any leaks. Are you sure your fuel petcock is not leaking and dripping down on your intakes? -Jared Quote Link to comment Share on other sites More sharing options...
traxx2003 Posted August 5, 2012 Author Report Share Posted August 5, 2012 No, I did not performed a leak down test, my motor has never been opened. I just took a compression reading and both cylinders are at exactly 115psi @ 2300feet elevation. She is running strong, I just had never noticed the oil residual in there before. Is it normal to have some oil residual around the valves? O, I also checked the fuel peg, and no it is completely dry/clean. Thanks for your response!! Quote Link to comment Share on other sites More sharing options...
toytech Posted August 6, 2012 Report Share Posted August 6, 2012 No, I did not performed a leak down test, my motor has never been opened. I just took a compression reading and both cylinders are at exactly 115psi @ 2300feet elevation. She is running strong, I just had never noticed the oil residual in there before. Is it normal to have some oil residual around the valves? O, I also checked the fuel peg, and no it is completely dry/clean. Thanks for your response!! a leak down test will tell you if or where those gaskets are leaking. don't use silicone it doesn't take fuel well. I use coppercoat spray on those gaskets or yamabond. Quote Link to comment Share on other sites More sharing options...
possum Posted August 6, 2012 Report Share Posted August 6, 2012 Take them off and clean everything real good. Then use some gray or black rtv On all surfaces. Just a thin thin layer with ur finger so u dont get any squished out. Let dry for a day. DONE!! Quote Link to comment Share on other sites More sharing options...
registered user Posted August 6, 2012 Report Share Posted August 6, 2012 fuel seapage where any 2 parts join together meens the gasket is leaking. really dont need a tester to confirm it Quote Link to comment Share on other sites More sharing options...
Jereme6655 Posted August 6, 2012 Report Share Posted August 6, 2012 He's not talking fuel seepage......he's talking oil residue. Which around the reed valves can accumulate if you are running either rich or using heavy amounts of 2stroke oil in your fuel... Quote Link to comment Share on other sites More sharing options...
BigRed350x Posted August 6, 2012 Report Share Posted August 6, 2012 He's not talking fuel seepage......he's talking oil residue. Which around the reed valves can accumulate if you are running either rich or using heavy amounts of 2stroke oil in your fuel... If you are seeing any oil residue outside your engine, you have a leak or a bad gasket or seal. Just because you run rich doesnt mean you should see anything outside the cylinders. Jared Quote Link to comment Share on other sites More sharing options...
Nieskes Posted August 6, 2012 Report Share Posted August 6, 2012 Like others said, take it apart and clean it, get new gaskets and put it back together. You should not need to glob rtv all over it to get a good seal. Quote Link to comment Share on other sites More sharing options...
Jereme6655 Posted August 7, 2012 Report Share Posted August 7, 2012 If you are seeing any oil residue outside your engine, you have a leak or a bad gasket or seal. Just because you run rich doesnt mean you should see anything outside the cylinders. Jared Haha I ain't talking on the outside of the motor Jared......I was never the impression that he was seeing the sligh puddling of oil on the inside of the motor on the bottom of the cylinder intakes where the slight lip is where the reeds fit. But I am in total agreence with you on the point your making.....there should be no fuel or oil seen on the outside of the reeds. Quote Link to comment Share on other sites More sharing options...
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