8 replies to this topic

[mrlctorana]

Hi guys, heres the go, New engine, Blue 202, triple 45's, elec dizzy, now has 185 miles on it butonce the revs get up around 3000rpm it starts to break down an miss and also backfire sometimes. The revs will still continue to build up slowy, so the rev limiter isn't set at 3000rpm lol.

I have changed the plugs, leads, rotor, cap, all to no avail, have tinkered with carbies and timing. Not sure what timing is atm but have retarded it a fair way and seems to be a lot better power wise down low but still missing. Could it be dizzy???

Les

[rodomo]

What fuel pump?

[mrlctorana]

Still using standard pump, This motor is pretty much the same specs as old motor and I didn't have any probs whatsoever before with the same carbies, Ran it at the drags, ect, always kept fuel up to the carbies.

Pulled the plugs out and seemed to be running a little lean, so i have also give it a little more fuel. Went out half a turn at a time with the fuel screws from 2.5 turns out to 3.5 turns out, plugs are better at 3.5 turns out and has a little more power but has not fixed problem.

Les

[mrlctorana]

Im pretty sure it's only under load as it doesn't do it in neutral, Although I haven't really revved it in netral as still running the motor in.

[mrlctorana]

Hey all, whacked another dizzy in it and away it went, all the difference in the world. Old dizzy had excessive movement up and down, there was about 10mm of movement on the shaft that the rotor button sits on.

Cheers guys

Les

Edited by mrlctorana, 27 April 2007 - 02:02 PM.

[red6]

good to hear its finally all back together and running well les, has it been off the road since u guys were down this way last year for the shannons show/a9x nationals? might catch up with you this sunday at simmons if i make it up there.

rob

[mrlctorana]

Cheers Greg, One of my teachers at tafe said exactly the same thing when I had it there last year. Have been talking to a fella who is in the know and has a box full of jet's ect, about getting it to his place to tune the carbies, which is one of the next things on my list.

Rob, Would have been good to catch up, didn't see your car there, was a great day though glad I made it. Have got a ton of pics to put up.

Les