1. Muckroot

    Static ignition timing inquiry

    Hello, I just rebuilt my engine and replaced a fair number of parts, and I am now having an odd problem statically timing the spark. Known variables: I do not know when the last time the engine ran before I rebuilt it. I had Hugh's Handbuilt rebuild the crank, it is not rephased. I...
  2. Muckroot

    unknown Wheel identification

    Hello, Bit of a newbie question but I recently bought an 1975 XS650B and subsequently discovered that the forks that were installed on the bike were XS400 forks, and totally don't fit the bike (the stem is too short). Because of this I've gone ahead and bought 34MM forks from a fellow forum...
  3. M

    For Sale - Parts leftover from 1974 TX650A bobber build

    All parts off 1974 Yamaha TX650A Swing Arm and Swing Arm bolt with crown nut – $35 Clutch Push Lever with all hardware and return spring (plastic assembly broken but there)- $12 Driver foot pegs - $20 for the pair (under scrape on one side, comes with bolt on framing and acorn nuts seen here. I...
  4. G

    Oil Leak Problem

    Hey guys, I'm a new rider/member and a proud owner of a 1982 XS650. My bike is in overall good condition with just a few issues that I want to address. The first of which is an oil leak that is occurring on the left side of the engine. It is dripping substantially onto the chain (consequently...
  5. smiles79

    chain slack?

    Hello all, My 75 xs650 has pods, vm34s, and a brand new pamco (not that any of that pertains to this question really), how much slack should I have in my chain? How do I measure it effectively? Also, what do you fellas use for chain lube? Thanks!
  6. cmyoch

    I moved a whole whopping 10 feet when...

    I got the "honey do's" done for the evening and the kids in bed. There was no rain in the immediate forecast so I thought it would be a great night to take a little jaunt around town and show my bike some love. Pulling out of my driveway and onto the street, the bike make an abrupt halt and...
  7. Q

    XS650 Stock Chain

    Hello peeps. I've acquired an XS650 project and have been building it for a while, but the bike didn't come with a chain. So I need to buy a new one. However, there are SO many options and such a difference in pricing that I could really use some advice. I would like a new...
  8. jtfield

    Chain Tensioner Engineering Question

    Hi All, In the process of building my first bobber and what an experiance it has been. Last night I was dreaming about the chain drive and using a chain tensioner. Now I get the purpose of this is to take up the "slack." I also get that when building a rigid frame motorcycle that the chain...
  9. Airwolfie

    My chain is too long, can I shorten it??

    Bought me a chain which was SUPPOSED to be for my model, I tried to fit it today, and it's too LONG!!!!! The rear wheel is about halfway in the axle holders, and I have an 18 tooth front sprocket, I think the rear is standard size, well I haven't changed it, so I assume is't original( I...
  10. austintylerr

    Chain tensioner and axle plates?

    Do I necessarily "need" both? I'm running a tc hardtail and monstercrafstman chain tensioner and I absolutely hate the look stock axle adjusters. I was under the impression that the axle adjusters were used mainly to account for slack in the chain.
  11. pnedac

    What could cause the chain to be tight then loose as the wheel spins?

    I am perplexed by this ongoing safety issue. I noticed that the chain is tight then loose then tight and so on as the wheel spins. My first thought is that something is bent. I took it all apart and I have found nothing is bent. I used a laser level to see into the drive sprocket, I have checked...
  12. S

    Drive chain rivet flaring tool?

    Drive chain rivet flaring tool? (SOLVED) OK so I installed a new drive chain today.....first time to do this and lucky me the chain was rivet I used this tool Didn't come with ANY instructions (for future reference) but after awhile I...
  13. R

    Replaced seals, chain scraping sound from left case

    Hi guys, So I successfully (I think) replaced the seals on the clutch push rod and the drive sprocket. I put the sprocket back on, then the plate washer, then tightened the nut. No oil leaks, but there is a sound coming from the left case that sounds like the chain either scraping, or...
  14. K

    Chain tensioner

    I would like to fab a chain tensioner that is spring loaded, similar to the monstarcraftsman version and I am wondering if anyone knows where to look for the sprocket and spring. I work in a steel mill and I can have pretty much anything machined as far as brackets are concerned. I can get...
  15. Skip

    Drive Chain Question.

    This may be a dumb question or just may have a simple awnser,but here it is. Why does the drive chain have a section where it is tighter than another section. I always adjust my chain at the tightest run.Any thoughts?
  16. I


    - this looks interesting...pity the XS doesnt really like sprockets large enough to make this worth the effort...chain lubrication will be interesting - edart brakes - 3 Guyz 530 and 630 chain - exile cycles - eurocomponents
  17. I

    chain tensioner

    - found this monster craftsman
  18. S

    Drive Chain

    Anybody recommend some good brands for chains? I'm probably going to go with a 120 or 130 link drive chain.