15 replies to this topic

[Juceymini]

Opinions please

[Gremlin]

It may be several things, could you explain exactly what happens - what your feeling, hearing?

[Nick Warwick]

Is your foot flat to the floor at 50mph?

[sixtyeight]

is your speedo accurate?

[Dan]

  Has it got any oil in it?

[jackmason]

Are you driving up a steep hill into a head wind with a standard 998 and flat tires?

Edit: ok, in all seriousness what someone said below regarding fitting a filter and not changing the needle is a good suggestion. Also as others said, check your getting full throttle.

Edited by jackmason, 17 January 2014 - 06:11 PM.

[FlyingScot]

What model are we talking about here?

FS

[Quicksilver-ash]

Sounds like your engine isn't painted red

[finch661]

go faster stripe and speed holes needed!

[Ethel]

It's a possibility, though unlikely. You could get someone, or a brick, to hold the pedal down while you see if the throttle is turned fully by the pull of the cable.

 

The nearest equivalent cause is a clogged air filter, but there are masses of others from binding brakes to a clapped out engine.

[domdee]

hahaha some funny answeres here

[ado15]

If you have fitted a K&N style air filter, but not changed the carb needle, it will go all asthmatic at around 50 or so.

[Dan]

 

hahaha some funny answeres here

 

 

 

  Yes but there shouldn't be.  Please don't mess about in the technical section, this is someone asking for our help and judging from the question asked they have limited experience or technical knowledge.  Please try to be helpful, or don't reply.

[Dusky]

Have someone pushing the throttle down and see if you can pull the throttle any further down on the carb.

Could be wrong settings of the carb too. Bad oil, flat tyres, no ignition on 1 cylinder maybe?

[domdee]

does it run rough on idle? or when you do the throttle by hand at the carb?