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bomberone

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Posts posted by bomberone

  1. On 2/24/2024 at 8:56 PM, gs7_11 said:

    Nearly. :)

    The GS400 is half a GS750. Same pistons, 65mm.

    The GS425 is the same but with 2mm bigger bore.

    The GS850 has 69mm bore.

    But yeah, it's a classic GS engine, lots of parts in common.

    Thats interesting if the 425 has a roller crank, guess the gs400 is same.  The gsx250/400 was plain bearing.

  2. 5 hours ago, Upshotknothole said:

    If it's still for sale next month I might just grab it and see what condition it's in and go from there. It's only like $100.

    Had a gsx400 years ago, which is very similar, wasn't anything special, there are plenty of smaller & larger bikes offering bags more character and chances are you'll need to throw more money at it, i'd save yer money and get something you really like..

    • Like 1
  3. Ta for replies, hadnt seen that vid.

    Those spigots/ports? No.1 is cast blank.  So only 3 ports.

    In the roof of the float bowl no.3 has a ball bearing , the others are open. Perhaps that one (no.3) is the vac tap?. (As gs7_11 suggested).  If the other 2 are vents they need to be unblanked?

    You were right, the plastic floats from bs34 carbs hardly fit (restricted travel), but good to see vid shows direct plastic replacements available.

  4. Still prepping these original slide carbs to replace the cv' s on a gsx1000. 

    Is it worth swapping out the brass floats for the plastic ones from the cv' s?  I do try to stick to e5 fuel..... but?

    The carbs have a central fuel inlet, but carbs 2,3 & 4 all have a brass inlet spigot for a vacuum hose? Do 2 of these need blanking?

    Ta

  5. Hi, do you folks know is there a replacement o-ring kit available for these 32mm carbs? Just recomisioning and o-rings on the jet holder for the main jet have disintegrated. Jet holder measures dia.5.2mm where o-ring sits.  Worthwhile replacing all at once tbh.

     

  6. Nice idea using boiling water though I was nervous of damaging the flexible rubber seal in the cap.

    Tried a bike pump & after much effort the washer released, but only the washer.  Tried some more & eventually a soft flexi seal released.  No further success with the remaining parts.  Tried boiling water but because the seal is leaking it doesn't build enough pressure.

    Might try see if I can get a small drill down side of the piston to free the stubborn seal next.

     

  7. Trying to strip the original masrer cyl that had shat itself over the fairing.  Removed the dust cover & circlip after modifying my pliers with an angle grinder. Then hit a brick wall. 

    The manual says next remove the washer but it won' budge, even had molegrips on the piston with a slide hammer & tried tapping with a deep socket but no result.

    It' as if the circlip was still fitted.  Any ideas?  Piston springing freely.

  8. Yep nice find.  Believe there were a few differences to the 1100, peakier cam?

    Have a set of vm32’s I’m planning on fitting sometime but needles are currently seized.  Slides have movement but not the needles. Left them stored empty of fuel but the residue has destroyed them!  Currently soaking needles with wd40... gutted!

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