valves

  1. IllusiveJack

    Wanted - Engine parts needed FROM UK

    Hi all, for a 1974 engine I am bulding from parts from everywhere :/ I'm after the following :- 1. A couple of standard 447 Pistons 2. Valve springs, seats, tops and collets 3. Left hand side casing 4. Alternator stator 5. All the starter gear setup behind the clutch Due to the virus I no...
  2. Voldo

    76 XS650: Hardtail Project

    Hey, everyone. First off, I want to say this forum is a tremendous resource and I am very appreciative of all the info you guys provide. That being said, I am looking for some guidance. Ok, so here is what I am working on. Please disregard the seat/sissy bar fitment and the messy garage. The...
  3. JayR

    Right Intake Valve Keepers diagnosis

    Hi folks, over the past 5-10 rides a clanging noise has developed in the top end. I set out to adjust the intake and exhaust valve gaps according to specifications. While doing this I noticed that the valve keepers on the right intake valve seem to be more open/askew compared to the other...
  4. Noidea

    Scratching my head so bad I'm gonna start bleeding soon Won't stay running

    so i bought a 1973 tx650 on ebay like a dumbass for my first motorcycle unfortunately some people suck and sell things to you by lying and saying they work when they don't. The dude said it ran and drove just fine but when it got turned on it kicked over but defiantly did not go into 1st anyway...
  5. webbie

    Valve lapping gone wrong (I think)

    I'm about halfway through my top-end rebuild, and I decided to lap my valves while they were out. I'm regretting that decision now. They weren't too bad, but there was a small amount of visible pitting and roughness. Now, I've got these grooved rings around the valve and seat, which is - if I...
  6. abyssmaltailgate

    When to Lap Valves?

    Another greenhorn question, but when should one lap the valves? There's a lot of great information on this site about HOW to lap, but I have yet to see WHEN to lap the valves. I'm installing new Kibbelwhite valves, and I assume since they're new, the valves need to be lapped. Other than that...
  7. G

    Pre-spring tear down questions.

    Hey guys. This fall my '79 Xs was popping fairly badly and pulling some heavy vacuum through the right side carb. I suspected a burnt valve or something of the like when i stored it for the winter. Well here i am getting the itch to ride on the nice MN days were getting. So today i pulled...
  8. SpongeBobbed

    Adjusting \valves - Help Needed

    I tried tackling the valve adjustment for the first time this morning and I've run into some issues and I was hoping to get some help. I've watched the video by wildbill about 10 times and everything looks really straightforward. I have a Hugh's PMA system and was able to find tdc using...
  9. desertrider

    New valve parts not fitting like the old ones

    Hi - I am putting my top end back together. I sent the head out to a good shop and had a valve job etc. done. Old intake valves were not good, so the shop bought 2 new valves (from Mikesxs, I believe) and returned parts to me. I bought a new spring/cap set from Mikesxs. Now I am assembling the...
  10. Captainplanet

    Getting a weird knocking...

    Just got the bike to start after 7 months of fiddling... Soon after starting I realized there's a weird knocking. Any ideas what it may be? You can really hear it towards the end of the video. Posted via Mobile
  11. B

    1975 XS650B

    I have some questions about my 1975 XS650B. When I pulled the engine and began to drain the oil I noticed some metal shavings. When I took the oil filter out of the right side cover it also had some metal shavings. Where could this come from? I would also like to know a couple things about...
  12. YL82

    Keep Keepers (Collets)?

    Jeepers Creepers, my Peepers tell me that my Keepers are Keepers. Any reason to replace my valve collets? I am keeping stock exhaust valves and swapping stock intake valves with new OEM.
  13. Square Circle

    I think i have a burnt valve...90psi right side

    Now what? How much is this gonna cost me ? what parts should I look into replacing once the head is off? I have'nt put my nose in the manual about this yet. This is Not what i was wanting to have to do .. and its looking like my fall :bike:riding will be a no:( go. Oh well, the project is so...
  14. K

    Valves

    I had to readjust my valves and i got the exhaust right, i would get the intake right, run a compression and then the intake would be too loose. i did that about 4 times and every time i got the intake right i would test it and it would be too lose again, any ideas there? and the exhaust which i...
  15. FathomYourFears

    Help with setting valve clearances!

    I'm setting the valve clearances on my '82. I set the left side and everything is all fine and dandy. But when I go to set the right side, it moves the timing mark when I adjust the tappets. Should I have someone hold it a TDC? Or is it fine?
  16. emzdogz

    I think I know why many people run extremely short pipes

    So they don't have to hear the valve clatter!!!!! Took mine ('80) out for a short test ride yesterday, after having made a new tail light mount and getting carbs refurb'ed. Ran pretty nice, really! Clutch works great. Brakes, not so good - they are spongy, so I will re-re-re-bleed them yet...
  17. C

    intake valve depth off

    so here's the backstory. 81 xs650 that I purchased not running and missing a few pieces. I've been putting it back together for a couple of months and recently got in running. it runs like garbage. low compression on the left cylinder around 100 psi. right is 125-130. left cylinder seems to be...
  18. emzdogz

    question about pistons at TDC with regard to valve adj.

    Last night I checked my valve adjustments (again) and I didn't need to change them. I have just been using the mark to the right of "T" to find TDC. I do the valves for one side, and then wind it carefully around once to that mark again to do the other side. If I accidentally pass the mark, I...
  19. littlebill31

    Valve Adjustment- Video

    Ok, here is a 4 part video tutorial on how to adjust the valves. My camera work is not too good, but you'll get the idea. Please note to do this with a cold engine. It's a pain until you get the hang of it, but is most essential. Remember, as I advise, to rotate the engine back around through...
  20. WacoBrian

    What is buring up my valves?

    really what ya'll think? is it my timing skills :doh: it is a lower end 81, jugs and head are matching 78, 2nd over size pistons, truly homemade pipes, hot pamco, k&m pods, stock gears, about a year an a half ago, had it to 100 or so 1- 2 -20 times. put it up for sale go to warm it up for...
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