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while out for a ride the bike was playing up slightly….
runs fine on tick over etc.
but as i pull away it splutters until i give it more revs?????
any thoughts guys…Spark plug breaking down, HT lead ? But I would think it would do it on idle as well!
It could be a bit of dirt in your pilot jet! Idle jet ok and splutters on your pilot jet untill your main jet kicks in!
What model is your bike?Samurai has ‘G’ model with GPZ carbs. I would be looking at a fuel issue. Possibly shit in the carbs
Depending on how clean they are mate you might find there was congealed petrol in them that has now been dislodged and blocking a passage. Petrol these days can go off in a matter of months so worth a look buddy and that won’t cost you. Get a can of Carb Cleaner. Its worth every penny with the shit it moves.
gave them a good clean today
(got some carb cleaner from tool station £2.68)
when i stripped them they looked fine.
but after a good dose off cleaner
and cleaned all the jets etc,,
she now runs great no spluttering.
its hard to keep my arse in the seat now……..Nice Going Samuria
Glad you got it sorted!
Did you take the Jets out?
It would be interesting to know what size jets you are running in the Gpz Carbs.
Good result Samurai. I suggest you run her at least once a month even if only in the garden on tickover for 15 mins or so
yes…. took all jets out…
the jets are the ones that came with the carbs… so i think standard for the gpz 500. i did try bigger jets when i first fitted them thinking they would be needed but it ran like crap…
andy might know more about sizes etcHi guys,
running the bike once per month is probably not the best thing to do !
There will be condensation inside the exhaust system and that is highly corrosive.
In the end the motor has to warm up completely and the exhaust as well to avoid that corrosion.
Needs attention, takes time, costs money and pollutes the environment.I suggest to drain the carb bowls !
That will remove the fuel out of the carbs and nothing is left to clog the jets, etc.
Opening the pet cock to ON / PRI will allow fresh fuel to enter the carbs and the bike will start much easier than with old fuel.I found the words “gumming” and “to resinify” to describe the effect, when fuel sits for long time in the carb bowls. I treat long time in this context to be longer than 6 or 8 weeks !
Good luck,
Michael
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