Thumper Club Forum

Technical => Bike Problems/Questions => Topic started by: booxbr on August 07, 2012, 08:19:44 PM

Title: Slow running jet
Post by: booxbr on August 07, 2012, 08:19:44 PM
Have got the Honda part number for the standard slow running jet ,but has any one got the Keihin part number for the larger jet (52) cheers  ;)
Title: Re: Slow running jet
Post by: booxbr on October 27, 2012, 01:28:23 PM
had to order the modification kit  both jets in the kit as was having no luck finding the slow running .jet kit (16020 MK 4 305) it is still available  from Honda japan took two weeks to get here just got to fit it now and hope it cures the idling speed
Title: Re: Slow running jet
Post by: guest295 on October 28, 2012, 07:05:36 AM
Why not just adjust the mixture? There's a tiny, recessed screw under the carb for that. Turn it with a small flat screwdriver bit held in pliers or something; there's not enough space to get a real screwdriver in. Turn it 1/4 turn at a time and see what difference it makes. Usually 1/4 turn is all it takes.
Title: Re: Slow running jet
Post by: booxbr on October 28, 2012, 09:22:26 AM
yes  will set it to spec which is two and a half turns out and re set the valve clearances inlet 0.15mm exhaust 0.17mm as stated on the Honda service information. Bike will tick over at a steady pace but some times when you do not want it to it just stalls i have up the tick over speed but it has not cured the prob
Title: Re: Slow running jet
Post by: guest295 on October 29, 2012, 06:49:23 AM
"Spec" on that is wrong. Adjust it 'till it responds as you wish. If memory serves, it's 1/4 turn out from the factory setting.