Well after re-building the engine, replacing the gasket's and the rings. I fired up the bike. 
Unfortunatly I still have exactly the same problem's as I did before. I used one of those colourtune's to see if the right mixture would help but no matter which way I turn the air screw the flame colour doesn't change.
Therefore I can assume that my problems lies after the carb's
Is it possible that there's a crack in the enginge allowing air into the cylinders and this would explain the low compression.
			
			
									
									
						Still sticky Rev's
Moderator: Moderators
- Miles
 - zxr400 oc member

 - Posts: 505
 - Joined: Wed Apr 30, 2008 11:00 pm
 - My Bike: ZXR 400 L3
 - Location: Bangor, Northern Ireland
 
- RedexRobB
 - Site Admin

 - Posts: 7212
 - Joined: Fri Aug 30, 2002 7:37 pm
 - My Bike: ZXR400L3
 - Location: Ipswich, Suffolk
 
Re: Still sticky Rev's
have you replaced the inlet rubbers? Airbox sitting on the carbs properly?
			
			
									
									
						- Mad Phil
 - Posts: 91
 - Joined: Wed Jun 24, 2009 6:39 pm
 - My Bike: Hayabusa, Ducati 996SPS
 - Location: Stoney Stanton, Leicestershire
 
Re: Still sticky Rev's
You can try RTV silicon to seal the rubbers & i found that they do not run very well without the airbox, even for balancing it was far easier with the box on..
			
			
									
									
						- 
				jackdim
 - Posts: 135
 - Joined: Tue Jul 14, 2009 12:29 am
 - My Bike: yz490
 - Location: Bristol
 
Re: Still sticky Rev's
Were all cylinders reading low comp? If not, which ones were?Miles wrote:Well after re-building the engine, replacing the gasket's and the rings. I fired up the bike.
Unfortunatly I still have exactly the same problem's as I did before. I used one of those colourtune's to see if the right mixture would help but no matter which way I turn the air screw the flame colour doesn't change.
Therefore I can assume that my problems lies after the carb's
Is it possible that there's a crack in the enginge allowing air into the cylinders and this would explain the low compression.
- Mad Phil
 - Posts: 91
 - Joined: Wed Jun 24, 2009 6:39 pm
 - My Bike: Hayabusa, Ducati 996SPS
 - Location: Stoney Stanton, Leicestershire
 
Re: Still sticky Rev's
could also be carbs out of balance holding the revs
			
			
									
									
						- RedexRobB
 - Site Admin

 - Posts: 7212
 - Joined: Fri Aug 30, 2002 7:37 pm
 - My Bike: ZXR400L3
 - Location: Ipswich, Suffolk
 
Re: Still sticky Rev's
How did you manage that one?Mad Phil wrote:even for balancing it was far easier with the box on..
- Mad Phil
 - Posts: 91
 - Joined: Wed Jun 24, 2009 6:39 pm
 - My Bike: Hayabusa, Ducati 996SPS
 - Location: Stoney Stanton, Leicestershire
 
Re: Still sticky Rev's
sorry cant let you into that secret as yet.... 
awaiting patent
			
			
									
									
						awaiting patent
- Miles
 - zxr400 oc member

 - Posts: 505
 - Joined: Wed Apr 30, 2008 11:00 pm
 - My Bike: ZXR 400 L3
 - Location: Bangor, Northern Ireland
 
Re: Still sticky Rev's
cylinders 1 - 3 were 90 psi
cylinders 2 - 4 were 105 psi
Is it possible that my ignition maybe advancing?
I did the resistance test on my IC and all the readings on A negative we're out but all the rest we're fine.
Maybe from being in the water it's shorted out?
			
			
									
									
						cylinders 2 - 4 were 105 psi
Is it possible that my ignition maybe advancing?
I did the resistance test on my IC and all the readings on A negative we're out but all the rest we're fine.
Maybe from being in the water it's shorted out?
- Miles
 - zxr400 oc member

 - Posts: 505
 - Joined: Wed Apr 30, 2008 11:00 pm
 - My Bike: ZXR 400 L3
 - Location: Bangor, Northern Ireland
 
Re: Still sticky Rev's
Right got it down to my mech. today, bad news the bore's are shagged.
I am now looking for a new engine.
Anyone know where I can get one?
			
			
									
									
						I am now looking for a new engine.
Anyone know where I can get one?
- RedexRobB
 - Site Admin

 - Posts: 7212
 - Joined: Fri Aug 30, 2002 7:37 pm
 - My Bike: ZXR400L3
 - Location: Ipswich, Suffolk
 
Re: Still sticky Rev's
'falloffslowly' is your man, aka Baz - 07727 943464
You can discuss with him what you want, but he can sell you a running engine which he personally has serviced with a new head gasket, valve clearnaces and cam chain.
 
			
			
									
									
						You can discuss with him what you want, but he can sell you a running engine which he personally has serviced with a new head gasket, valve clearnaces and cam chain.
