Severe Bogging - What am I missing???

Discussion in 'Electrical' started by WisBlaster01, Feb 28, 2023.

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  1. WisBlaster01

    WisBlaster01 New Member

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    Setup: 1989 Blaster; everything stock (230 main jet, stock pipe, no performance mods that I’m aware of). When I bought the bike the electrical was a mess, so I stripped everything back to the most essential elements, including removal of the TORS system.

    Problem: The bike starts on first or second kick every time, and idles fine, but it boggs terribly at mid and high revs. Absolutely no power at all in the min/high range. The exhaust smells like gas at full throttle, so this seems like either an ‘extreme’ rich condition, or a lack of sufficient spark.

    What I’ve checked/replaced/repaired:

    • New spark plug
    • Complete Carb rebuild (only thing I didn’t replace was the pilot jet)
    • Tried moving the needle clip to the top position to lean it out; this had no effect
    • Float level checked – right in the middle of spec
    • Tank/petcock checked for flow – flow was fast
    • Checked reeds - not cracked, and seem to seal well
    • New reed gasket, with a bit of RTV for good measure
    • New coil (more on this below)
    • Checked stator resistance – seems fine

    Questions:

    • Since I’ve stripped out all the non-essential electricals, I’m assuming this can’t be a ‘wiring issue’, but I could be wrong. A 1989 shouldn’t have any parking brake circuit to worry about, and all wiring associated with the TORS system has been removed. Am I missing something?
    • I’ve replaced the coil twice now. The first coil tested way off on ohms, so I repaced it with something from Amazon. After seeing that the new coil didn’t improve the problem, I tested the new one, only to find that it also didn’t meet the ohms specs. I bought third coil on Amazon (different model), and that one also doesn’t meet the specs. These things are marketed as replacement coils for a blaster. Am I buying the wrong coils?
    • I’m sure I’ll get a bunch of messages about checking for leaks and/or compression, but I’m failing to see how a leak would lead to an extreme rich condition, or how the bike would start on the first kick if I have a compression issue. If someone has a theory on how a leak or lack of compression would cause the problem I’m experiencing, I’ll chase it down, but I would rather not throw more money at this problem just to check these off the list.

    WHAT AM I MISSING HERE? ANY HELP WOULD BE GREATLY APPRECIATED.
     
  2. WisBlaster01

    WisBlaster01 New Member

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    Did I post this in the wrong place?
     

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