Athena 170

[Irongamer727]

@calum the entire snorkel and the top plastic is cut out. I'll comment on the post I did a while back and you'll see

[Calum]

Ah yeah, so with that then, it probably just wants a tad more fuel to compensate.

[Irongamer727]

@calum I guess I could order a bigger idle jet or wait for the summer...

[Calum]

@irongamer727 Either way it doesn't sound right.

If it were fueling, it would start if you opened the throttle ajar.

[Irongamer727]

@calum recommendations then?
It has never ever wanted to start with throttle. With or without the big bore. With the previous cylinder it would at least start fast cold.

[Calum]

@irongamer727 Better carb mate.

I had issues with my Athena as well. Carb sorted that out.

I had issues with the stock cylinder. Carb sorted that out.

[Irongamer727]

@calum ehm. No. Won't change that. Problem lies somewhere else.

[Irongamer727]

If I only had a kickstart...

[Calum]

@irongamer727 That's what you want mate.

https://www.ebay.co.uk/itm/YAMAHA-TZR-125-4DL-yr-92-CARBURETTOR-DELLORTO-VHSA-32-GS/282744266127?hash=item41d4df1d8f:g:GTwAAOSwrhhaFTOk

That'll fix your problem guaranteed!

I literally don't know why the original carb sucks balls lol.

[declan]

@calum I’d rathet bump start it than pay that price lol

[Calum]

@declan Yeah but that's just the cost of tuning for you bud.

[declan]

@calum cost of genuine carbs tbh carbs are quite pricey

[Irongamer727]

Things are not going my way. 180km into break in I spotted 2 small holes on the cylinder. I have spoken to the company I bought the kit from and they will contact Athena for assistance. Hopefully this ends well..

https://youtu.be/JSdh4gz1p8w

[Irongamer727]

What do you think? I've now fitted a 310 main jet and she's still a bit down on power. It felt better than the 290 for sure. Now I'm thinking about buying a couple of extra jets, 320-350.
Is this even possible? I've not spoken to anyone running higher than 280.

[2stroketerry]

If using a TM28 carb then need a 300 main jet with a 27.5 idle jet. Main jets go up to 430. Put clip in the bottom groove on needle.
https://www.sip-scootershop.com/en/products/main+jet+mikuni+300+_40703000

https://www.sip-scootershop.com/en/products/idle+jet+mikuni+275+_40726000

[Irongamer727]

@2stroketerry I'm running 310 now and it's certainly not optimal. Idle is 35 now, definitely too big.

[Irongamer727]

In reality, what would cause the bike not to start on the first or second spin on the starter. Is it just down to the pilot jet and fuel/Air mix?
Obviously a good battery and fresh electric components will make things easier but I got that covered.

I've read in the Haynes that there is supposed to be a starter jet in the later carbs? Much of what that books says makes no sense...

[Louis-DT-WR]

I run the autolube on my dt125r bottom end with wr200 top end. I just adjusted it to suit the larger capacity. I've run it for years. Autolube is brilliant

[Irongamer727]

@louis-james hows that thing to start?

[Louis-DT-WR]

First kick 99% of the time