Hello all.

I run a my99 with full decat, walbro and green cotton air filter, just had a gauge fitted and thought it ran flat sometimes now and again, if you build throttle up slowly it will build and hold to 0.7/0.8 bar, however if you suddenly go wot it will spike normally to just over a bar then drop to 0.5 the. Build up to 0.7/0.8 bar. Could the gauge that's just been fitted have a split, kinked pipe making this happen? I am not a mechanic so didn't fit it, any other ideas???

Thanks in advance!!!

 

clean the boost solenoid mate

 

Cheers, will look into going that, any other ideas?

 

try that 1st