sweep22 wrote:Hello everyone!
I have a zxr import on a 91 plate, at around 8000 revs there is a massive flat spot until around 1100 or 1200, it means the bike will only do 100 at a push!!
Is there anything that it could be? I've already had the carb rubbers replaced and its had a service with new plugs.
Also the engine is very rattly, but i've heard they are all like that!
Any info would really be appretiated!
They're the rubbers between the cylinder head and the carbs right?
If your BF has replaced them, he might of not put them in right.
I had exactly the same problem on my bike. In the end I had 3 flatspots 1 at 3000rpm 1 at 4000 rpm and 1 at 10000rpm and it was all due down to leaking intake rubbers.
Give it a quick check by spraying some karb cleaner over all 4 of them while the engine is running and see if the engine revs high or bogs down on it's own. if it does, then you have a air leak on the rubbers. Simply take the carbs and carb holders off (2 allen bolts on each) and spread some gaskget sealent on the engine intake manifold, let it dry for a few minutes and then put the holders back on. Put the carbs on and then start the engine and spray some more karb cleaner over the intake rubbers to see if they are still leaking air.
Rich
