Topic: Starting off

[philcarroll_1985]

Good morning all, I've been given a 400f to get back on the road, I've noticed that when pulling off I need to rev the bike quite hard and ride the clutch a little or the engine bogs down a little. Otherwise it rides well and Shifts as normal once moving. Is this nature of the beast or does something need adjusting or changing? I'm used to more modern bikes which will pull off at next to no throttle

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[jgger]

I would say to start, check your spark plugs, timing , timing advance, and air cleaner. Any of those out of whack may allow it to "sound" good but be under powered.

[philcarroll_1985]

I'll have a look at the timing. Can that be done by a novice with the manual easily?

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[Alan F.]

Full tune up, even if just a verification of proper adjustment without changing any parts.

You can do it with a good manual in hand. Beware of aftermarket service manuals and start threads here if questions arise.

[philcarroll_1985]

What's the best one to go for? Haynes?

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[Alan F.]

Here you go, download whatever you may need for your bike, links are all in reply #1:

http://forums.sohc4.net/index.php/topic,17788.msg184793.html#msg184793

[philcarroll_1985]

I tried using this method today but my test lamp didn't light up at any stage, any ideas why? I tested the lamp on the battery and it lit up so no faulty lamp

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[philcarroll_1985]

Ignore the above, absolute novice mistake, kill switch was on

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[Alan F.]

That happens to everyone eventually, glad you were at home.

[philcarroll_1985]

On the same/similar topic, I'm having trouble starting the bike from cold. What I have done so far is

Fresh petrol,
New battery,
New plugs,
Fresh oil and filter,
Air filter,
Stripped and cleaned carbs - set up on bench following a post I've seen on here,
Static ignition timing as per video in previous post,

It will start with easy start but still relevantly. When it does start it will only idle with around 2k, anything less and it will die off

I've searched through here for tips but I'm at a loss what to check next, any thoughts would be greatly appreciated

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[The Lone Builder]

Underneath the air filter there is another filter element that filters blow-by gases. I’m not sure if that would cause or contribute to your problem, if it’s clogged.

Worth a check and can be replaced by a piece of scotchbrite if its in bad state.