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Post by richardthescooter3 on Nov 16, 2012 19:51:42 GMT -6
Hey Guy's & Gal's will this intake manifold fit my mc-54-250b roketa scooter alright? This is a intake for 250cc linhai/yamaha scooter 170mm. Attachments:
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Post by alleyoop on Nov 16, 2012 22:43:00 GMT -6
If the bottom of yours matchs that bottom yes it will work just fine.
Alleyoop
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Post by richardthescooter3 on Nov 17, 2012 7:51:38 GMT -6
Hi Alley, The only thing that's different is the one bolt hole is cut out  if that doesn't matter then it should be good, I repaired my intake again, but it still takes a little long to start then I like. Maybe this new intake will make a difference  |
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Post by richardthescooter3 on Nov 17, 2012 7:58:47 GMT -6
Here is a better pic  Attachments:
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Post by richardthescooter3 on Nov 17, 2012 8:00:01 GMT -6
Here is the one I have now Attachments:
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Post by richardthescooter3 on Nov 23, 2012 17:38:18 GMT -6
Got man intake manifold today ;D Here pic after installation Attachments:
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Post by richardthescooter3 on Nov 23, 2012 17:40:08 GMT -6
Here is the intake manifold I took off Attachments:
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Post by alleyoop on Nov 23, 2012 18:07:28 GMT -6
Ok, The only thing is you need to Flip the "Y"s around. YOU want the SINGEL CONNECTOR on the "Y" to CONNECT to the INTAKE MAINFOLD then the two connectors are open to connect other Vacuum needed parts. ALWAYS have the BOTTOM of the "Y" going toward the MANIFOLD. Reason is it will create EQUAL SUCTION for any Vacuum Required parts. The way you have the "Y"s connected some will not get as much suction as others. Alleyoop  |
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Post by richardthescooter3 on Nov 23, 2012 21:53:36 GMT -6
Alley, so I have it going wrong direct? Turn it around but plug in same lines.
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Post by alleyoop on Nov 23, 2012 22:04:35 GMT -6
Richard,
Yes turn the "Y"s around, now the only hose I have a question from your picture because I cannot see where they are going to is the ONE WITH THE WIRE WRAPPED AROUND IT. That to me looks like the CARB DRAIN HOSE but I might be wrong. So if all your VACUUM HOSES go to Canisters or SOME VALVE TYPE piece yes they are ALL VACUUM HOSES.
Alleyoop
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Post by richardthescooter3 on Nov 23, 2012 22:45:45 GMT -6
Alley, look at this, went over and re-did it. (That hose is gas vent hose to canister. Attachments:
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Post by alleyoop on Nov 23, 2012 23:48:58 GMT -6
I have a couple questions, I think you have the top "Y" connected wrong, and it also has to be turned around since it looks like it is feeding TWO VACUUM parts the ACV valve and something else? That hose coming from the FLYING SAUCER looking VALVE is very important and you want good Vacuum going to it. That is your ACV valve so when the throttle is suddenly closed it CUTS off the air and feeds fuel so it does not run lean when you let go of the throttle. Alleyoop  |
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Post by richardthescooter3 on Nov 24, 2012 9:20:28 GMT -6
Yes that is a y also one side is from vacuum side of fuel pump, other side goes to the ACV, the other hose your pointing to is from fuel tank to canister.
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Post by richardthescooter3 on Nov 24, 2012 9:50:00 GMT -6
Here is a closer look at those two vacuum lines. Attachments:
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Post by richardthescooter3 on Nov 24, 2012 9:52:19 GMT -6
Which one do I turn? The left side of intake goes to the next y which the vacuum side of the fuel pump and the VCA on, the right side of the y from intake goes to canister and emission stuff.
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..BAD TO THE BONE..
