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Thread: Aww, it's broken - Aprilia RS250

  1. #201
    Member Loud's Avatar
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    Quote Originally Posted by EEKNOWS View Post
    Ermm you don't need a flow commander with a Zeeltronic. You have complete control over the solenoid duty, ie at any rpm or throttle position you can have the solenoid open between 0-100%. Changable with the controller, rejetting without any jets/screwdrivers
    Hmm. That sounds pretty cool, I didn't realise. I'm quite happy with having the Flo Commanders in also even if it's just to set up the initial base-line tune to fine-tune with the Zeel at a later date.

    Nice to see you still keeping an eye on the build - thanks
    Click Link for My Bikes:

    Aprilia RS250
    1985 GSXR750 "Slabbie"

  2. #202
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    Flo Commander works over the entire rpm range not in a specific rpm range like the solenoid. Base line is the standard setting which I think is open between 4500-7000.

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    Nice RS250! Thanks, Loud, for volunteering your bike for our directory.

    This build is being featured in the BikeBuilds.net directory here: Loud's RS250

    We're currently displaying only a reduced-size photo (similar to what you'd find in Google Images). We'd like to ask for your permission to publish the original full-size image with your build listing.

    If anyone would like to have a build of their own listed, just send me a message with a link to the build thread and we'll take care of the rest.

    Ken

  4. #204
    Member Loud's Avatar
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    Things to do before first start up:

    • Connect upper-cylinder PV cables (aren't they a pain to get to?)
    • Fit pilot-circuit Flo Commander and quick-couplers upon arrival.
    • Install carbs
    • Fit choke cable
    • Connect up air solenoid circuits
    • Set PV positions (again, that upper cylinder is going to be a pain)
    • Install air box (waiting on the crankcase filter to arrive)
    • Fill coolant system and bleed
    • Put a clip on the 2t reservoir
    • Fill 2t oil system and bleed/prime
    • Fill gearbox
    • Install fuel tank
    • Add fuel to tank
    • Use a fuel petcock for the first time in my life


    And that's it. Scary. It might happen this weekend or next! There is also the brake lines to fill and bleed - I'm just waiting for the OEM rear brake reservoir.

    Questions:

    1. My 125 has a quick-disconnect for the fuel line. I'd love one for the 250 but it uses bigger diameter hose and I don't know where to find a disconnect that fits - any suggestions?
    2. I'm planning on running mineral pre-mix to run the engine in. The 2t system will be filled with synthetic - I don't want to empty mineral oil from the lines really. Should I just leave the oil pump disconnected until the motor is run in?
    3. Do I leave the original size jets in and just work with the Flo-Commander to begin with?


    Once the bike is running I have the SAPC and PV controller to remove and replace with the Zeeltronic, plus connecting the shift light, quick shifter and map switch. I still haven't found connectors that will stop me from having to cut the original SAPC plugs off of the loom... any last suggestions?
    Click Link for My Bikes:

    Aprilia RS250
    1985 GSXR750 "Slabbie"

  5. #205
    Member pesty74's Avatar
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    I ran my engine from Germany with motul 710 only prob the end cans filled up with oil so either get new exhaust matting or ride in a lower gear for a while 8k 100km, 8.5k100-200km,9k 200-350km,9.5k 350-500km 10k 500-650km ,10.5k 650-800 , 11k 800-1000kms then flat out lol not saying u should follow but when I got my engine these where what they say the run in their engines so I followed

  6. #206
    Member Loud's Avatar
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    So they recommended that you use a pre-mix synthetic oil to run the new motor in?

    I'd be worried if your exhaust matting is flooded with oil after so few kilometres... you sure the jetting is right?
    Click Link for My Bikes:

    Aprilia RS250
    1985 GSXR750 "Slabbie"

  7. #207
    Member pesty74's Avatar
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    Jetting I think is standard on my bike but have the jets they sent me with the temp range I gave them but the matting I think will have to change. Lol I'll take my bike in for a service soon

  8. #208
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    Quote Originally Posted by pesty74 View Post
    Jetting I think is standard on my bike but have the jets they sent me with the temp range I gave them but the matting I think will have to change. Lol I'll take my bike in for a service soon
    check your pump timing as my pump had a faulty return spring so it left a really great blue haze- just sharing an experience not saying its your problem

    replaced it with an aprilia one never looked back

  9. #209
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    Hahahah I think my oil pump is ok I will need new matting as I just brought from tyga should be here next week sometime then when I get home from working away change it ova since the excess oil is dripping out from the exhaust lol

  10. #210
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    I wouldn't change it over until you've worked out why your bike is running too rich. You might even find some kero cleans out your silencer enough to leave the existing stuff in - depends upon how long it has been running that way and how far through the matting it has gone.

    But back on topic
    Click Link for My Bikes:

    Aprilia RS250
    1985 GSXR750 "Slabbie"

  11. #211
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    Lol

  12. #212
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    Quote Originally Posted by Loud View Post
    Questions:

    1. My 125 has a quick-disconnect for the fuel line. I'd love one for the 250 but it uses bigger diameter hose and I don't know where to find a disconnect that fits - any suggestions?
    2. I'm planning on running mineral pre-mix to run the engine in. The 2t system will be filled with synthetic - I don't want to empty mineral oil from the lines really. Should I just leave the oil pump disconnected until the motor is run in?
    3. Do I leave the original size jets in and just work with the Flo-Commander to begin with?
    AF1Racing have the motion pro quick disconnects.

    I've never bothered with mineral oil in 2T. I wouldn't recommend running pump and premix for long periods of time. Normally I do the heat cycles with premix, bleed oil lines during the heat cycles, then dilute the premix and run the oil pump for the run in. Your run in period isn't going to be that long anyway.

    I started with standard jets. You'll know pretty quick which way you need to go.

  13. #213
    Member Loud's Avatar
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    Okay, quick disconnects and pilot Flo-Commander installed.





    Now to install the carbs and work out where all these f*cking hoses go...

    Then it's just the OEM rear brake reservoir, which I got after months of wondering why the Tyga one didn't work (it's for their subframe). Fluids, check tighten some things, and it's almost time to see if I've made a hand-grenade or been successful.
    Click Link for My Bikes:

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    1985 GSXR750 "Slabbie"

  14. #214
    Member Loud's Avatar
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    Last night I pulled the bowl off the carbs one last time and checked the jets. Then I assembled them again, put them in place on the bike and installed the throttle cables.

    I can now twist the throttle and see the carb slides open and close. Pretty bloody exciting. Needs about 1mm of adjustment to make the slides perfectly synchronised.

    The quick release seat catch is now modified and installed, the cables for the quick shifter and map switch are in and connected.

    Tonight is going to involve paying close attention to the manual to make sure I run the choke cables and solenoid hoses right.
    Click Link for My Bikes:

    Aprilia RS250
    1985 GSXR750 "Slabbie"

  15. #215
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    whats with all that stuff in the airbox

    with all that equipment reducing the volume of the box will that affect the carb operation?

    just asking

  16. #216
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    Flo commanders

    Will be fine

  17. #217
    Member Loud's Avatar
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    Hey Mick, they allow the fuelling to be adjusted with a screw, instead of pulling the carbs or dialling in to the Zeeltronic. Seems to make sense for if you're away from home on a ride. Besides, it's on rgvlee if they cause issues
    Click Link for My Bikes:

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    1985 GSXR750 "Slabbie"

  18. #218
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    interesting

  19. #219
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    How's it all going mate? haven't had bugger all time to come on here.
    RS 250 - TTW Heads, Cougar PVs, Arrow Pipes, Gilles Rear Sets, Tyga Rear Tail, Hel Braided Lines,
    Paint job by Potato (Straightline2Ten)

  20. #220
    Member pesty74's Avatar
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    Come on loud what's happening with Ya bike

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