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+--- Thread: Acceleration stutter after service (/showthread.php?tid=65285)
Acceleration stutter after service - dBfazer600 - 31-08-13
Today I have done the following:
New:
Air & Oil Filter
Spark plugs NGK CR8EIX 4218
Cleaned front breaks all is good
Rear break seized but free enough not to drag until I can strip it down and see to it properly (new pads fitted and works as expected)
Bike is stuttering on acceleration on overtakes and when ridden hard. Had to adjust tick over as it shot up to 2.250K after service. Bike runs smoother than in the past and sounds sweet.
This has me stumped and can only think it been electrical as its intermittent.
Any Ideas boys and girls.
Daz
Re: Acceleration stutter after service - noggythenog - 31-08-13
My token answer is....have you kinked or trapped the fuel pipe under the tank when you put it back down???
Re: Acceleration stutter after service - dBfazer600 - 31-08-13
Noggy I let numb nuts do most of the work and he put the tank back on but forgot to turn the fuel tap back on so I did come to an halt a mile down the road without tools including numb nuts. Got it sorted after a phone call and he turned up with tool in hand and I let him play with my bike again.
I would expect any fuel blockages to be present at any point of acceleration but I will check it out tomorrow
Daz
Re: Acceleration stutter after service - Dead Eye - 31-08-13
My bet is on the air filter - if you still have the old one, swap them round as its only a 5-10 min job and will help to rule it out.
Stutter means checking the three main things - Fuel, Air and Spark
You haven't touched Fuel in your service so start with Air and Spark - easiest to check first is Air
Re: Acceleration stutter after service - dBfazer600 - 31-08-13
I will do one job at a time and start with sparks by putting old ones back in. Bike run like a dream for 30 mins with a noticable change in the power band but hay that's how it goes
Daz
Re: Acceleration stutter after service - darrsi - 31-08-13
You may need to read "War & Peace" written by 'red98'.
It's a best seller. :lol
Re: Acceleration stutter after service - dBfazer600 - 01-09-13
Also noticed but never happened before tick over decreases when lights are on but is normal when they are off.
(31-08-13, 11:52 PM)darrsi link Wrote:You may need to read "War & Peace" written by 'red98'.
It's a best seller. :lol
That's a bit racy with what I have been told and is now considered a lads mag by the feminist of our society :rolleyes
Daz
Re: Acceleration stutter after service - Chris - 01-09-13
Perhaps the plug caps and leads could be the problem, seeing as they've been tugged at to get them out the way to get to the spark plugs, could have caused on of them to crack at the end or something giving a poor spark which you would only notice when under load/heavy load.
But as Deadeye said try the air filter first as it's probably easier to see if it's the problem.
Chris
Re: Acceleration stutter after service - dBfazer600 - 01-09-13
What surprised me was that the nipple head of the new spark plugs needed to be removed to fit the caps.
To be honest Chris I am clutching at straws as this has never happened to me before and I am questioning everything
Daz
Re: Acceleration stutter after service - Chris - 01-09-13
I'd go with the caps or leads as the main problem but just take your time and work through it. You'll get it fixed soon I'm sure.
Chris
Re: Acceleration stutter after service - red98 - 01-09-13
hi daz.........as DEADEYE,put all the old parts back on and check caps and leads.make sure fuel line is routed well and not trapped ,what air filter are you using ?.....let us know if theres any improvement
Re: Acceleration stutter after service - nick crisp - 01-09-13
Yeah, but don't do what red98 did and change more than one item at a time! Or you still won't know which thing cured it. Ok Paul?! :lol
Re: Acceleration stutter after service - keirravn - 01-09-13
Another vote for air filter
Re: Acceleration stutter after service - red98 - 01-09-13
(01-09-13, 07:59 AM)nick crisp link Wrote:Yeah, but don't do what red98 did and change more than one item at a time! Or you still won't know which thing cured it. Ok Paul?! :lol
cheers nick :lol ......yeh,just one part at a time
Re: Acceleration stutter after service - dBfazer600 - 01-09-13
What you see is what I have done although the rear break pistion has seized and i is awaiting delivery of new one has it is now causing the new pads to drag. So with is as an issue I am waiting until I have sorted it. The rear break has seriously put shivers down my spine :eek but lesion learned.
Oil is just below top mark.
Been for a short run and the bike is de-accelerating faster than normal which the R break accounts for.
[smg id=1154 type=preview align=center caption="1 Old air filter dirty dirty dirty"]
[smg id=1155 type=preview align=center caption="2 The after shot of a new filter"]
[smg id=1157 type=preview align=center caption="3 Front breaks before and after clean"]
[smg id=1159 type=preview align=center caption="4 OMG rear break put it back on and 2nd bike shop got the parts"]
[smg id=1161 type=preview align=center caption="5 Can not believe these"]
[smg id=1162 type=preview align=center caption="6 Well and truely gunked up"]
[smg id=1164 type=preview align=center caption="7 Took an age to get to this to find they are seized"]
[smg id=1166 type=preview align=center caption="8 No matter how you look at it the pistons will not budge"]
[smg id=1168 type=preview align=center caption="9 What realy pisses me off is that who ever put these in did put them in dry"]
I had to take a heavy duty chisel to the R pistons so I could at least get the new pads in so I hope the break will push them back out when fitting new ones.
Daz
Re: Acceleration stutter after service - dBfazer600 - 03-09-13
Found this so now awaiting the caps I ordered
[smg id=1174 type=preview align=center caption="Number 2 cap rubber split How clean are those hands"]
Daz
Re: Acceleration stutter after service - JZS 600 - 03-09-13
Hopefully will be sorted now!
Last time I changed the spark plugs I took off the No3 lead and it came off in my hand!
5 mm off the lead, screwed back on and away...
Re: Acceleration stutter after service - Chris - 05-09-13
(03-09-13, 06:05 PM)dBfazer600 link Wrote: Found this so now awaiting the caps I ordered
[smg id=1174 type=preview align=center caption="Number 2 cap rubber split How clean are those hands"]
Daz
Permission to look smug?
Hope the new one sorts the problem mate.
Chris
Re: Acceleration stutter after service - noggythenog - 09-09-13
Well found Daz
Hope it works
Oh by the way your new can looks minted, enjoy the roar!! 8)
Re: Acceleration stutter after service - dBfazer600 - 09-09-13
Update
Did one job at a time and firstly put new fuel filter on that made no difference so then fitted new spark caps and adjusted the throttle to take out the free play. I lubbed all cables a just in case they were dry. I have not had the chance to open it up but the bike now picks up better and throttle is more responsive. So tomorrow I hope to get it up to 10rpm where its been stuttering.
Stuttering was more noticeable on the OEM can but less on the new one.
Cheers Noggy it is so sweet and engine is allot smoother with a face full of
Chris please take great pleasure in been smug :thumbup
Daz