So Close!...
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Only been to the shop and back so I never properly warmed up. It felt really juddery at low revs, which I put down to the chain being as slack as a wizards sleeve (since corrected!). I’ve yet to take it for a proper test cause I’m all flued up and feel like shit!…
One thing I’ve meant to ask is about the exhaust tone/note. Not at the tailpipe but deep in the expansion chamber. It sounds really different from before. Anyone gone from standard 3mb to Athena and noticed a similar thing, or not? Any info appreciated …
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@SpookDog said in So Close!...:
One thing I’ve meant to ask is about the exhaust tone/note. Not at the tailpipe but deep in the expansion chamber. It sounds really different from before. Anyone gone from standard 3mb to Athena and noticed a similar thing, or not? Any info appreciated …
I have a DEP modified to match the tuning,they tell me that it sounds like a factory 50cc moped not a tuned 170cc, that's until the power band then it screams like a TZ125. When was bought bone stock and abused sounded more serious I could say.
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Ive ridden it for 31 miles and it still feels very lumpy with compression when I kick it over. Nothing like when I put a freshly rebored 3mb and piston on it. I could turn it over with my hand then (after riding!).
I might be over worrying but I’m wondering if I could do with a thicker base gasket. The standard one is at least 1mm thick I believe?… -
Hey bud! Haven’t taken it over 5K so PV isn’t an issue. Chain was very slack, it must’ve bedded in during the 30mile shakedown ride a lot more than I thought possible! I’ve adjusted it up so it has just over 25mm play. I’m waiting till tomorrow to ride it cause I’ve had a few beers…
I’m probably worrying too much. I almost expect something to go wrong…
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Chain adjustment has gotten rid of the shuddering, just done 3 miles after warming up and it is riding sweet. Only niggle is at certain low revs when I’m just maintaining speed it sounds almost like there are a few tiny ball bearings in the expansion chamber. I’m guessing it’s a bit of a mixture adjustment in the pilot jet/valve cutaway range. Going to try and richen the airscrew and see what happens…
Tick over is very stable so I don’t think it’s a small air leak…All in all it’s good. Pulls like a fuxin freight train @ low revs. Totally different animal! …
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They were painted bud. The bike was first registered black with red frame and stickers. Most of the panels were dark/navy blue. So it had a hard life before I got it, 16 registered keepers! (I’d love to know how many times it was stolen!)…
It’s an old mongrel, not a righteous, numbers matching survivor. Though I am trying to turn it into an honest, righteous bike…
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@SpookDog said in So Close!...:
They were painted bud. The bike was first registered black with red frame and stickers. Most of the panels were dark/navy blue. So it had a hard life before I got it, 16 registered keepers! (I’d love to know how many times it was stolen!)…
It’s an old mongrel, not a righteous, numbers matching survivor. Though I am trying to turn it into an honest, righteous bike…
I think our DT fates are close,mine was at a coastal rental shop and I leave on a semi touristic island.Was in Germany for 2 years before coming to Greece 11 years as rental.
A properly raped stock unserviced bike when bought,56K km's on factory piston,fux even oil's/fluids where stock. -
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Realised I’ve been having problems with electrical, plug and cap, as well as a bit of an air leak with the rubber manifold I used. It’s hard as fux so I’m changing it out for the old , flexible one…
One thing at a time would be nice, but where’s the fun in that, I spose…
Edit: I’ve addressed both problems, just got to wait till tommorry and see if it’s hit the mark, or not …
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Hey bud! You posted a pic or link to a more comprehensive wiring guide for the early Dtr’s a while ago? It included the power valve servo wiring for 3 wire ones. Can you refresh me with it maybe? I’m not finding it easy with searches!…
Ta!!——————————-
Back together again!…
Tomorrow, sobriety and a test ride will tell if the ‘oversized’ .25 pilot makes a positive difference…
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@SpookDog Yes mate, it's on that thread @dan28 put up about the CDI/neutral switch wiring but here it is anyway:
BTW I meant to ask you, does your bike have a separate ignition control unit under the seat? If so I think that's what the threaded hole on the top of the airbox (just in front of the air intake) is for. According to Haynes it's unique to the '88 round slide carb (3DB1) version of the DTR although the original TZR125 also has this. The wiring diagram above is for the '89 onwards, 3NC 3RN1 onwards bikes (3MB is similar, just a couple of different CDI connections), will try and scan in/post up the 3DB1 wiring diagram sometime.
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Yeah bud! There’s a threaded hole to mount a plate that I imagine is like the flasher relay units mount point. A similar rubber do~da setup
I have two separate solenoid relay boxes under my seat that live above the airbox. They used to scare the bejesus out of meThe extra blue & sky-blue connector is what I was wondering about. I have a spare 3NC CDI that has them, that I was thinking of trying out.
The CDI unit on my bike doesn’t have those two wires/connector-block.I was trying to suss out were the brown and black wires (for the PV servo 2 pin plug) come from. Whether it’s the loom or my old CDI unit. I’m very wary of disturbing the loom and connectors again! 35 year old wiring ‘ain’t what it used to be’! …
Also the feed wire for the PV servo, it’s black/yellow? My wires are so faded I want to make sure I’m not mixing it up with the black/white stripe wire!…A definitive wiring diagram would be a Godsend!