Problem after servicing

[Racerbike]

Today I went to a reputable shop to service my S4 bike. Changed the engine oil, oil filter. 4 x iridium sparkplug, washed my K&N filter. After the service, I feel so light with my bike. Everything was so smooth. However good moments do not last long. When I was moving along the highway cruising around 100km/h, I suddenly heard a slight backfire and my bike jerked abit. I was shocked and dare not accelerate. Stopping on the red light, my engine doesn't seems to sound normal. I rev abit but it doesn't respond good. Later my engine stalled... Now it seems that my bike is altered with a powercut by the shop. I could hardly go up to 60km/h and only able to maintain at 60km/h with sudden jerk once every 5 seconds. Anyone knows what's wrong?

 

Hence I recommend bikers to have a test run first before leaving the shop

[Simon Soh]

check each of ur spark plug cap if it's properly cap on.

 

Q:how to check..?

A:sparkplug cap should be firm sitting on it. try move it up & down to check if it's loose. if it does, unplug it & tap it down hard, make sure no free-play on it.

 

good luck.

[kambing]

Originally posted by Racerbike@Dec 13 2006, 11:37 PM

Today I went to a reputable shop to service my S4 bike. Changed the engine oil, oil filter. 4 x iridium sparkplug, washed my K&N filter. After the service, I feel so light with my bike. Everything was so smooth. However good moments do not last long. When I was moving along the highway cruising around 100km/h, I suddenly heard a slight backfire and my bike jerked abit. I was shocked and dare not accelerate. Stopping on the red light, my engine doesn't seems to sound normal. I rev abit but it doesn't respond good. Later my engine stalled... Now it seems that my bike is altered with a powercut by the shop. I could hardly go up to 60km/h and only able to maintain at 60km/h with sudden jerk once every 5 seconds. Anyone knows what's wrong?

 

Hence I recommend bikers to have a test run first before leaving the shop

check again to see whether all ur 4 plugs are firing..

could be one or couple of `em is/are fouled up..

go back to the shop to check bro..

if the plugs they changed fer u fouled up..

they should change for u FOC..

[kambing]

Originally posted by Simon Soh@Dec 13 2006, 11:50 PM

check ur each spark plug cap if it's properly cap on.

 

good luck.

this could be the case too..

[PUNK]

yuh agreed ... got to b spark plug or plug cap.. juz go back to the shop bro if ur nt sure.. cheers