Kitty Cat Bogging possible solution
Posted: January 10th, 2010, 11:38 am
I have a 1999 Kitty cat which was picked up about 2 years ago but never really run b/c of poor performance and it was particularly sensative to throttle response.
It would bog or stall and not re-start easily.
I rebuilt the carb several times making sure it was clean.
Although the machine had low hours on it I checked compression which was at 80psi, this seemed low.
I put new piston and rings in it. The oem rings where beyond their service limit, the piston was perfect but I put a new one in anyway.
Now that I had a new top end. I knew it should function properly.
***While it was apart and knowing piston port machine are just sensative in general I "rolled the dice" and modified the stock exhaust. The exhaust would not come off while the engine was in the sled so the engine had to be pulled anyway. When I reinstalled the exhaust I used bolts and tossed the oem studs and nuts so now I can remove the exhaust while the engine is still in the sled...going forward.
I cut the oem muffler in half and removed its internals completely and welded it back together.
Yes, it is a bit louder than original.
However, the sled does not bog, at all, and revs clean all the way to peak rpm and back down.
Now i'm not certain if it was the new top end or the modified exhaust but the sled starts and runs well.
As for starting procedure, I use full choke and hold the throttle wide open until it starts to show signs of life, then I turn the choke off and still hold the throttle open until it starts. Once running it seems to re-start easily.
Sorry for the long post, but, I hope this may help others.
It would bog or stall and not re-start easily.
I rebuilt the carb several times making sure it was clean.
Although the machine had low hours on it I checked compression which was at 80psi, this seemed low.
I put new piston and rings in it. The oem rings where beyond their service limit, the piston was perfect but I put a new one in anyway.
Now that I had a new top end. I knew it should function properly.
***While it was apart and knowing piston port machine are just sensative in general I "rolled the dice" and modified the stock exhaust. The exhaust would not come off while the engine was in the sled so the engine had to be pulled anyway. When I reinstalled the exhaust I used bolts and tossed the oem studs and nuts so now I can remove the exhaust while the engine is still in the sled...going forward.
I cut the oem muffler in half and removed its internals completely and welded it back together.
Yes, it is a bit louder than original.
However, the sled does not bog, at all, and revs clean all the way to peak rpm and back down.
Now i'm not certain if it was the new top end or the modified exhaust but the sled starts and runs well.
As for starting procedure, I use full choke and hold the throttle wide open until it starts to show signs of life, then I turn the choke off and still hold the throttle open until it starts. Once running it seems to re-start easily.
Sorry for the long post, but, I hope this may help others.