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Thread: 1984 Suzuki GS1150ES New Wiseco 1229 Kit, 400 miles is blowing smoke

  1. #1
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    Default 1984 Suzuki GS1150ES New Wiseco 1229 Kit, 400 miles is blowing smoke

    Hi Everyone, I have a 84' Suzuki GS1150ES with a new wiseco 1229 kit with 400 miles on the break in that is blowing smoke. . I had a pro help me install the new pistons and rings and a solid, reputable shop do the cylinger boring. It also got a proper valve job with new valve seals. I took it very easy on the bike for the first 375 miles then it started to smoke. A few folks told me the rings should be broken in by now and I should ride it hard. So I did that. I got on the highway and let her rip on the on ramps a few times. The smoke did not go away.

    This is super frustrating as I've poured a lot of money into this bike. I really hope I do not need to put new rings in or another entire kit. Any and all advice is greatly appreciated.

    Thanks,
    Lee
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  2. #2
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    Quote Originally Posted by LeeMills View Post
    Hi Everyone, I have a 84' Suzuki GS1150ES with a new wiseco 1229 kit with 400 miles on the break in that is blowing smoke. . I had a pro help me install the new pistons and rings and a solid, reputable shop do the cylinger boring. It also got a proper valve job with new valve seals. I took it very easy on the bike for the first 375 miles then it started to smoke. A few folks told me the rings should be broken in by now and I should ride it hard. So I did that. I got on the highway and let her rip on the on ramps a few times. The smoke did not go away.

    This is super frustrating as I've poured a lot of money into this bike. I really hope I do not need to put new rings in or another entire kit. Any and all advice is greatly appreciated.

    Thanks,
    Lee
    The first 1-200 miles are pretty critical for getting the rings to seat right. Not everyone agrees with what many folks now call the MotoMan break-in method, but going easy on a motor can lead to poor ring sealing and oil consumption, loss of performance.
    "Thought he, it is a wicked world in all meridians; I'll die a pagan."
    ~Herman Melville

    2016 1200 Superlow
    1982 CB900f

  3. #3
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    Hi, from the description of your problem, something has failed. I don't think the break in has anything to do with it. The bike should run great with new parts. It costs nothing but time to check valve clearances and then compression. This will give you data that you can report back. I hope you find the problem.
    1983 gs1100ed restro-mod. 1998 gsxr 1100 almost mint, 2019 kawasaki klx250, 2011 Beta 250 evo trials bike, 2017 Montesa 300rr trials bike, 2021 honda crf250rx woods weapon

  4. #4
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    First 100-200 miles are critical, and the rings are a likely culprit if you babied it.

    https://www.enginelabs.com/news/dispelling-engine-break-in-myths-with-high-performance-academy/
    "Thought he, it is a wicked world in all meridians; I'll die a pagan."
    ~Herman Melville

    2016 1200 Superlow
    1982 CB900f

  5. #5
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    Your rings are in upside down. Seen it a few times. Take it back apart and put them in correctly. The letter goes up.
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  6. #6
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    See if it is only smoking in one hole. You can pull the exhaust and start it up to see.
    Speed Merchant
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  7. #7
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    I had a new piston failure too on an a street ridden 84 1150. Only 400 miles. Did several break in heat cycles, changed the oil/filter probably 3-4 times, varied revs throughout, 20 minutes riding thru 3/4 rev range, 20 minute break, etc.

    A shop with good racing history did the boring of cylinders, however no ring end gaps were measured by me or the shop...& a piston/ring set was brought to the folks doing the boring, but said it"ll be fine.

    I had the same mods done previously by the same shop with no issues, but starter clutch grenade created the need for a rebore of stock block.

    A member here (RR) said it was clearly a too tight ring end gap failure.

    The front & back of 3 cylinders had massive scoring on the piston skirt.

    The cylinder bores didn't look to my untrained eye be very deep, but the limits of stock bore of 3mm over would likely mean new sleeves or a rebore of a stock block.
    GS\'s since 1982: 55OMZ, 550ES, 750ET, (2) 1100ET\'s, 1100S, 1150ES. Current ride is an 83 Katana. Wifes bike is an 84 GS 1150ES

  8. #8
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    Here's a shot of my Wiseco 1229 pistons after 400 miles.
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    GS\'s since 1982: 55OMZ, 550ES, 750ET, (2) 1100ET\'s, 1100S, 1150ES. Current ride is an 83 Katana. Wifes bike is an 84 GS 1150ES

  9. #9
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    I also think you could have an oil ring upside down. Do a leakdown test. However, when I was working as a tech we'd often see new bikes, usually big bore models, with poor ring sealing. They were usually broken in too easy. The rings need some significant combustion pressure to seat. When I was visiting the Ducati factory, EVERY brand new bike was put on a dyno and taken to red line in every gear. Part of the acceptance test.

    Mad

  10. #10
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    Nessism is offline Forum LongTimer GSResource Superstar
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    A leak down test won't tell you if the oil control ring is messed up. Gotta bust er down again...

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