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190 nip up
Posted: Sun Nov 02, 2014 6:37 pm
by sydduckett
Just put together a Suzuki 190 top end and it's nipped up around 1/4 throttle. only done 1/4 mile as well.
set up is
Sh20
Slide 5914-1
Atomiser 5899/2
Main 112
Pilot 50
Starter 50
Open mouth
Indian 12 volt
48 clubman
I think the pilot may be too weak plus maybe a different atomiser? Any suggestions appreciated.
Ta
Sef
Re: 190 nip up
Posted: Sun Nov 02, 2014 6:52 pm
by goldeneye
bores too tight if its nipped up after 1/4 of a mile.
Re: 190 nip up
Posted: Sun Nov 02, 2014 8:55 pm
by Knowledge
I agree
Re: 190 nip up
Posted: Sun Nov 02, 2014 9:30 pm
by bristolmod
or its a really poor piston that has a coefficient of expansion which is all over the place.
Re: 190 nip up
Posted: Sun Nov 02, 2014 10:07 pm
by Adam_Winstone
Or timing is out and it is tight.
Re: 190 nip up
Posted: Sun Nov 02, 2014 11:14 pm
by sydduckett
Timing is 17, so I think I'm okay there. I didn't get a chance to get a plug test before it nipped up. I want to get some plug tests done before I take the barrel off if possible. I don't have much in the way of pilots and atomisers so I'll have to get some before I try.
I'd like to get the correct atomiser for a richer bottom end and a richer pilot because it seemed to be about quarter throttle when it nipped.
Re: 190 nip up
Posted: Mon Nov 03, 2014 8:44 pm
by fritz
Have you tried running with choke on?
Re: 190 nip up
Posted: Mon Nov 03, 2014 9:35 pm
by paulnobodyimportant
Just to confirm the majority as piston bore. Jetting over 1/4 can't have been that bad.
Re: 190 nip up
Posted: Mon Nov 17, 2014 3:24 am
by dirtyhandslopez
What was it?