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Air flow

Posted: Sun Jan 30, 2011 9:21 pm
by djh66
After rebuilding my LIS 150 engine with the usual gp crank, bearings, seals, electronic, ally 185 kit and PWK 24 mm carb breathing through the airbox with baffles taken out, I took it down the end of my road and back (not yey registered :roll: ). I wasn't happy with the lack of accelaration, so took the inlet hose off and let it breath directly, it made a huge difference. So, is my next step to run it through a ram filter?

Re: Air flow

Posted: Sun Jan 30, 2011 9:34 pm
by ForemanBob
I use a ram air filter with an almost identical setup.... goes really well.

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But that may not be the source of the problem... you running rich?

Re: Air flow

Posted: Sun Jan 30, 2011 10:02 pm
by Andy Pickering
Be aware you will need your jetting checking and setting up correctly or it could be expensive fella.

Re: Air flow

Posted: Sun Jan 30, 2011 10:53 pm
by djh66
ForemanBob wrote:I use a ram air filter with an almost identical setup.... goes really well.

Image


But that may not be the source of the problem... you running rich?
I'm running a K34 pilot and a 114 main to start, but I've only been to the end of the road and back, as it's not registered yet. What jetting are you running?

Re: Air flow

Posted: Mon Jan 31, 2011 12:23 am
by Doom Patrol
Bob; was it much of an effort to fit a 22mm hose on the carb?

Re: Air flow

Posted: Mon Jan 31, 2011 8:44 am
by djh66
Doom Patrol wrote:Bob; was it much of an effort to fit a 22mm hose on the carb?
I gave mine a dunk in some boiling water, sliped on fine.

Re: Air flow

Posted: Mon Jan 31, 2011 1:16 pm
by Doom Patrol
Thanks.