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Bike running a tad sluggish

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Trylski
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Joined: 17 Feb 2008
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PostPosted: 18:34 - 30 Aug 2009    Post subject: Bike running a tad sluggish Reply with quote

When opening the throttle all the way at anything under 8k and the engine bogs for a few seconds before picking up. The low end accelleration is more or less the same as when it was 33bhp. The top end is also only about 108mph Indicated.


I have discovered this all since finding my Restrictors had fallen out somehow while I did the valve clearances. Rolling Eyes

Question is: Could it be I've cocked the valves up?
Carbs need fiddling with?

Bit of paper says its just the blades in the inlet.

Cheers for replies
____________________
Current Bike: Suzuki Bandit N600 '99,
- CBT: Passed 02/2008 - Theory : Passed 24/02/09 Test: Passed 09/03/09 - 2011 33bhp over


Last edited by Trylski on 22:29 - 30 Aug 2009; edited 1 time in total
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Timmeh
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PostPosted: 20:13 - 30 Aug 2009    Post subject: Reply with quote

If you'd made a mess of your valves chances are you'd blown it up by now. Definately sounds like a fuelling problem, maybe the pilot jets were changed up as it sounds like its running rich.

A plug chop is your friend.

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GSXR400 x2 | '94 RVF400 | '93 TZR125 4DL (again)
20:22:30 BLUEX5: i would love to be forced to undergo a**l plugging with different sizes
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Trylski
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PostPosted: 20:26 - 30 Aug 2009    Post subject: Reply with quote

Will do a plug chop tomorow evening. Its too late to do one now.
____________________
Current Bike: Suzuki Bandit N600 '99,
- CBT: Passed 02/2008 - Theory : Passed 24/02/09 Test: Passed 09/03/09 - 2011 33bhp over
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MaybeGuy
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PostPosted: 10:55 - 31 Aug 2009    Post subject: Reply with quote

Timmeh wrote:
If you'd made a mess of your valves chances are you'd blown it up by now. Definately sounds like a fuelling problem, maybe the pilot jets were changed up as it sounds like its running rich.

A plug chop is your friend.

Thumbs Up


ignore that.
if you'd made a mess of your valve clearances, and got them wrong, then you could very likely have an engine that runs like you're describing.
are you sure you timed it properly?
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Blue_SV650S wrote: it was a sh1te wheelie, but it proves that he can get it up in 3rd and can do angles. In summery, mattsprattuk is a gobby little sh1tebag, dopehead tw4t, but sadly for all of us, he probably isn't THAT full of sh1te!! Mr. Green
Kickstart wrote: Hi I tend to agree with Matt. All the best Keith
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Trylski
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PostPosted: 19:02 - 31 Aug 2009    Post subject: Reply with quote

I couldn't say about the timing.
It was my first go at anything this technical so I've no idea what I may or may not have done with the timing.

I just used a feeler gauge in the valve and tightened as nessicary.
____________________
Current Bike: Suzuki Bandit N600 '99,
- CBT: Passed 02/2008 - Theory : Passed 24/02/09 Test: Passed 09/03/09 - 2011 33bhp over
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MaybeGuy
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PostPosted: 20:54 - 31 Aug 2009    Post subject: Reply with quote

what bike is it? i assumed it was shims, not rockers. ignore the timing thing if you havnt changed it.
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Blue_SV650S wrote: it was a sh1te wheelie, but it proves that he can get it up in 3rd and can do angles. In summery, mattsprattuk is a gobby little sh1tebag, dopehead tw4t, but sadly for all of us, he probably isn't THAT full of sh1te!! Mr. Green
Kickstart wrote: Hi I tend to agree with Matt. All the best Keith
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yuri2085
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Joined: 05 Jul 2008
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PostPosted: 23:04 - 31 Aug 2009    Post subject: Reply with quote

Throwing in a air filter/ jetting here with no real experience. You wouldn't notice the dodgy air filter as much with the restriction in so perhaps it just needs a clean/new one.

Basically look at the air filter, is it really grimey?-worth looking as its so easy Smile.
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Trylski
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PostPosted: 07:25 - 01 Sep 2009    Post subject: Reply with quote

@Mattsprattuk:

Its a 99 bandit 600 mk1. Haynes manual calls the top of the block the "valve rocker cover". Might be a clue Razz

@yuri: Air filter has a pretty dirty circle that lines up with the spout of the air filter. Will clean it at the weekend.
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Current Bike: Suzuki Bandit N600 '99,
- CBT: Passed 02/2008 - Theory : Passed 24/02/09 Test: Passed 09/03/09 - 2011 33bhp over
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