I posted this thread thinking people are up on things. All of a sudden I am crucified for using the word no, and accused of not knowing how to ride a bike after 40 years of riding, (Ok knock off two for having an auto clutch on a Honda 70) 38. I was just posting a cure to a common problem. If your clutch slips, and you have nothing to lose, it's worth a try. Put it in and take it out. Here is some info from someone who is way more knowledgeable than any of us, If you know more, post a link to your article.

Synthetics and Slipperiness in Relation to Roller Rockers and Wet Clutches
As a side note, we have received many reports of motorcycle shops telling customers that synthetic oil is so slippery that is causes roller bearings not to roll and will result in flat spots on the roller bearings. This is absolutely not true. Synthetic oil is no more “slippery” than petroleum oil. Synthetic oil is more uniform in molecular structure than a petroleum oil but it is not more slippery and will certainly not cause roller bearings to roll. Roller bearings will roll whether they are using petroleum oil or synthetic oil and the only way the roller bearing on the rocker arm will ever stop rolling is if the needle bearings that support the roller bearing failed. Every automotive racing engine (as well as many other types of high performance engines) and most of today’s high performance automobile engines use camshafts with sophisticated roller rockers with absolutely no problems of this nature whatsoever.

We have also received reports of motorcycle shops telling customers that synthetics are so “slippery” as compared to petroleum oils (which simply do not reduce friction as well) that wet clutch packs in their motorcycle transmission and even their automatic transmission of their cars and trucks will slip when using “slippery synthetics” even if there are no friction modifiers present. This is absolutely not true.

Look at it this way. Wet sandpaper removes paint as well as dry sandpaper does. The slipperiness of the water does not impede the sandpaper's ability to function. The same applies to the slipperiness of synthetic lubes in wet clutches. It is simply not an issue. However, just as rinsing the sandpaper keeps it cleaner longer so it functions better longer, so the synthetic lubricant keeps wet clutch plates cleaner longer so they function better. And, since synthetics are superior cooling agents to conventional petroleum lubes, using synthetics will help wet clutches last longer, too.

Petroleum oils have low resistance to heat and allow varnish and glaze to form on clutch plates, which can lead to slippage and increased heat generation and potential failure of the clutch pack. Synthetic oil is going to allow your wet clutches to perform better (especially under extreme heat, RPM and load conditions) and last longer than they would with petroleum oil subjected to the same operational conditions.

As a side note in respect to Automatic Transmission Fluid: synthetic ATF is not more “slippery” than petroleum ATF. The base fluids, whether or not petroleum oil or synthetic oil, play no direct role in the relative friction levels of wet clutches. The friction-modifying additives developed for petroleum oils work just as expected in synthetic PAO’s fluids. The longer the fluid resists oxidation, the longer the original frictional properties remain. The superior oxidative stability demonstrated for synthetic ATF’s thereby leads to extended retention of frictional properties.



Read more: http://www.smartsynthetics.com/articles/motorcycle_oil_technical_facts.htm#ixzz0hsHNWoLV
Info found here: http://www.smartsynthetics.com/articles/motorcycle_oil_technical_facts.htm

He said none of these, I said NO, Sorry. All I know about oil, I run synthetic Amsoil is my preference, I use Mobile V Twin when I am broke.

I posted a cure for a common problem, I'm sorry.

Edit link: http://en.wikipedia.org/wiki/Motorcycle_oil

I have more miles pushing my bike out of the shop backwards than a lot of you guys do riding forward!
Now how much trouble will that get me into!

Can someone post a link on how I don't know how to use a clutch, ride a bike, work on one? I had the balls to put seafoam in when no one else did. It cured my problem, It will come out today for a spell if it's cured totally, I'll add no more and go back to synthetic. Lead follow or get the hell out of the way!