Recent content by 123petey

  1. 1

    Installing a Vape all in one charging and ignition system.

    Cool! I got it all figured out now. A stupid error on my part. I set the valves to the exhaust TDC which is why it sounded crazy when I fired it. Not sure what I was smoking. I started from scratch top down and realized the error. I reached out to Hoos and they said right cylinder first to the...
  2. 1

    Installing a Vape all in one charging and ignition system.

    Hey Steve - sorry to bug you again but there are few people here that did the rephase with the vape system. Which cylinders did you match with which pickups? Left cylinder to “top” sensor at the rotor, or right cylinder to “top” sensor? Thanks
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    Vape powerdynamo 277 install

    Looks like it was HVC Cycle in Lincoln, NE. It was for an rd350 and they look to be a 2 stroke specialist shop so they may not offer the service for the xs650. It is definitely nicely made, but if you have a big bore, aftermarket carbs, changed the sprocket gearing, etc you may need to slightly...
  4. 1

    Vape powerdynamo 277 install

    I fired it up this week and it sounded crazy. Double checked my work (which I should have done first!) and realized I pretty much had everything backwards. Gary, from Hoos Racing where I purchased the system, confirmed my suspicions. A little amazed it fired right up and a lot amazed I didn’t...
  5. 1

    Installing a Vape all in one charging and ignition system.

    Question for those of you who installed a 277 vape - did you set the left cylinder to the “top” sensor and the right cylinder to the “bottom” sensor? And the flag gap to TDC on the compression stroke for each? It fires right up but doesn’t sound quite right. I’ve adjusted/inspected the cam chain...
  6. 1

    Installing a Vape all in one charging and ignition system.

    I’m installing the 277 vape system so I have twice as many components. I managed to fit them under the tank, but like you, was concerned about heat. So I mounted them in an under seat pan. My instructions also have the charge light but since I’m running with a capacitor I made a lead for it but...
  7. 1

    Sprocket and ratio theory

    In other news I’m hopefully going to fire up my 700 big bore 277 rephased with the vape system for the first time today! It’s supposed to reach 115-120 degrees today so being in the garage is really not inviting... Here’s a pic of how I mounted the system in an under seat tray.
  8. 1

    Sprocket and ratio theory

    Understood. I appreciate all the input. I agree, and at the end of the day theoretically going from 17/34 to 16/32 if there would be any difference, would most likely be tiny. It’s one of those rabbit holes that when you’re alone with a few beers can be pretty steep. I still feel that there are...
  9. 1

    Sprocket and ratio theory

    I’ve already stated that I’m not looking to “do” anything. I appreciate everyone’s efforts to help me understand how to gear up or down, I fully understand how that works. I understand ratios, and ratios don’t change. 1/2, 2/4, 4/8, all the same. It’s a little surprising that no one else is...
  10. 1

    Sprocket and ratio theory

    So just to put this up front, I’m not trying to be difficult or argumentative. I’m just really curious about this because I’ve never thought about it. I’ve changed one or the other and understand gearing ratios and the effect. But I have to respectively disagree - if you change both down or up...
  11. 1

    Sprocket and ratio theory

    Hey all - I have a question that I’ve been struggling with and haven’t found much valuable information. So stock sprockets on the XS650 is 17/34, 2.00 ratio. If you change to 16/32, maintaining 2.00 ratio, what is the result? I’m assuming the engine is spinning faster, so more gas consumption...
  12. 1

    Best method for finding TDC

    Haha - probably a better (safer) implement than the screwdriver but I’m a creature of habit!
  13. 1

    Best method for finding TDC

    Depends on how precise you need your TDC. Old school screwdriver in the spark plug opening and watch for it to peak - obviously make sure you are on your correct stroke. You can take off your points cover on the right side and look for the pin to be at 12 o’clock and 6 o clock. I did this for my...
  14. 1

    Vape powerdynamo 277 install

    So a couple questions for people who have installed or are more knowledgeable at the electrical end of things: There is a fifth lead on the reg/rec that looks to be optional and says it functions as a charge light and is not needed if running without a battery. I don’t have any light to connect...
  15. 1

    Vape powerdynamo 277 install

    Ok, so once I got the engine back in the frame, I just followed the instructions plugging the two triggers at the stator into the igniter boxes. Those get plugged into the coils. Coils then to the spark plugs. Two black leads from the triggers run to the reg/rec, and a brown lead and a red lead...
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