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spit back with mb reed valve

Posted: Sat Jan 04, 2014 9:05 pm
by tavspeed
hi chaps,got the new engine fired up today.race rapido 230,been tuned by jb,60mm crank,mb reed valve,pwk 30mm carb,pm25 exhaust.apparently carb was set up for a ts1,and sounds very rich on 0 to 1/4 throttle.
getting quite a bit of spit back through the carb,is this normal with a reed valve with too rich a pilot jet,think it is a 38,needle circlip in the middle,havent tried it on the road yet as a few jobs to do yet,cheers all.

Re: spit back with mb reed valve

Posted: Sat Jan 04, 2014 10:14 pm
by nelson pk
If your jetting is very rich it will still spit back even with a reed valve.

Re: spit back with mb reed valve

Posted: Sat Jan 04, 2014 11:19 pm
by Toddy
^ agreed ^

Re: spit back with mb reed valve

Posted: Mon Jan 06, 2014 8:43 pm
by Andy Pickering
Rich at 1/4 throttle might not be a bad thing on a new motor, last thing you want is lean there.

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Re: spit back with mb reed valve

Posted: Mon Jan 06, 2014 9:39 pm
by sean brady scooters
best to get it set up on a dyno :)