Really wierd thing happening, any ideas anyone?

121game121 · Two Stroke Sniffer Joined: 15 Dec 2010 Karma :

Okay i managed to get my carb on my aprilia rs 125 cleaned using ultra sound as it was causing problems. Fitted it on normally.

The bike runs and starts fine, the only problem is that when in first gear, the revs drop and dies.
I have to hold the choke down a little bit to get off in first after that the bike runs normally with choke off. Only when it comes to first gear :S confused. (I have tried idling it at over 1500, gets to a point where the idle screw is all the way in)

Anyone know whats happening here?

Frost · World Chat Champion Joined: 26 May 2004 Karma :

It wont pull very well when the engine is cold, especially if the rings are worn and it' due a rebuild. wait for it to get up to operating temp before trying to ride it, that usually means 30 seconds or so of idling with the choke off.

121game121 · Two Stroke Sniffer Joined: 15 Dec 2010 Karma :

Yh i warm it up to around 50 on the temp gauge.

Even after ive rode a few mins whenever i stop and its in first and i need to move off it just dies out.

All over gears are fine and thottle cable is fine.
Checked airbox and thats all sealed up tight.

I did a compression test 120 psi. So dont think rebuild is the issue.

mad4it028 · World Chat Champion Joined: 04 Jul 2006 Karma :

sounds to me like your clutch is dragging try adjusting it up alittle
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nsr_J22_FOXEYE · Scooby Slapper Joined: 16 Jun 2010 Karma :

121game121 · Two Stroke Sniffer Joined: 15 Dec 2010 Karma :

Really?

I would of hoped it would be something to do with the jetting?

bacon · World Chat Champion Joined: 09 Jan 2009 Karma :

121game121 · Two Stroke Sniffer Joined: 15 Dec 2010 Karma :

[quote="bacon"][quote="121game121"]Really?

I would of hoped it would be something to do with the jetting?[/quote]

it could still be that, your describing symptons that are only occuring at the low part of your rev range. Did you change any settings? Mess around with your pilots or float height?[/quote]

Yh i have a feeling its the jetting at lower revs. The stock setting for aprilia Rs125 restricted has setting of i think,
the starter jet is 65, main jet is 165 and the others i cnat remember but its not stock settings.

chris-red · Have you considered a TDM? Joined: 21 Sep 2005 Karma :

Pete. · Super Spammer Joined: 22 Aug 2006 Karma :

Fuck off Hetzer that brought real tears...
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a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good Very Happy