I have been attempting to get this bike running for a few weeks. It had sat for about two years. The carbs were hastily cleaned in an attempt to get it running. Unfortunately, I overlooked the gas tank. The bike will crank, but only runs for a few seconds before shutting off. After reading previous posts, I have surmised that it is from a combination of two issues.

First, I need to clean the rust/crud out the gas tanks. It has an old liner in it, from the previous owner, that is starting to flake off and looks decrepit. I was thinking about using POR-15. Any other suggestions?

Second, I need to completely break down the BS34 carbs and thoroughly clean them. I figured it would probably be wise to go ahead and get a rebuild kit and replace the jets while I was at it.

I have tested all the electronic components, and they are functioning properly. The petcock is in good shape, and I replaced the o-rings last week. I cleaned all the electrical connections and coated them with a thin film of dielectric grease. The spark plugs are NGK D8EA and gapped according to the service manual. I have not checked whether the gas cap is venting or not, but I will address that issue when I get to the gas tank. I have not found an inline fuel filter short enough to fit between the carb and petcock. Any suggestions on what to use?

Any other possible suggestions for this issue, or how to go about it are greatly appreciated.

Thanks in advance.

Edit: Does anyone have a good method to clean the dull finish on the engine casing?

I have not found an inline fuel filter short enough to fit between the carb and petcock. Any suggestions on what to use?

I use one like this http://www.royalenfieldusa.com/fuel-filter-inline-p-341.html on my XS. Works great. I picked it up at a local bike shop for $6.

Another one: http://www.parkeryamaha.com/index.asp?Page...mp;ProdID=24710

I pulled the pilot jets out and found that they were both completely clogged. The left pilot jet head was badly stripped and will be replaced. The service manual states that they should be #45, but these are #42.5. What difference does this make? Should I replace them both with #45?

I pulled the pilot jets out and found that they were both completely clogged. The left pilot jet head was badly stripped and will be replaced. The service manual states that they should be #45, but these are #42.5. What difference does this make? Should I replace them both with #45?

sometimes they had different jets for each side.

could also be smaller to pass emissions test for type approval, so #45's could be for optimum performance

sometimes they had different jets for each side.

could also be smaller to pass emissions test for type approval, so #45's could be for optimum performance

I looked at the parts catalog, at it states that it uses #42.5 What is the difference? Does #45 make much of a difference?

I looked at the parts catalog, at it states that it uses #42.5 What is the difference? Does #45 make much of a difference?

don't know, unless you buy some time on a rolling road, which I don't think would be worth it unless its done for free.

don't know, unless you buy some time on a rolling road, which I don't think would be worth it unless its done for free.

I agree. I was just wondering which one to go with. I think I'll try the #42.5, since that is what the bike appears to be tuned to. Thanks for the input.