So I have a TC 88 carbureted that is showing signs of the time for a rebuild is here/fast approaching. I've got what I would consider too much oil consumption (probably around a quart or so about every 2 weeks, 600 miles or so), with smoking, and what I feel like is a loss of compression paired with paranoia lol. So anyway I was looking at my options, I wanted to bore it out while I was at since the motor will be torn apart anyway. I've seen the 94" kits and the bored stock cylinders to 98". But a lot of what I am seeing is for EFI models so I'm not sure where to find carb kits or what I have to do to make these work. So I'm basically trying to figure out which routes are the most affordable and reliable. My riding style is half ride it like I stole it and half riding "normal" 2 up. The bike already has V&H 2 to 1 exhaust and an unknown set of cams( I haven't pulled it apart to look at them, since I bought it). So just looking for advice

 

A quart in 600 miles is a good indicator that the top end needs attention; a compression test will confirm. Carb or EFI has nothing to do with the "kits". There are lots of options and much will depend on if this is a DIY project or not. You can bore to 95", 98" or go straight to 100" with a set of bolt on HD cylinders; I believe pistons are available now for the 4" stroke.

There is a "budget" build kit of parts for a 95" build for sale in the for sale section; used but a decent kit of parts including cylinders/pistons, ported heads with compression releases and a set of gear driven cams.

 

Going from 88 to 95 you don't need a carb kit.. Most carb kits provide too much fuel in the wrong places and kill mileage. Best to up the pilot one size and possibly toss a washer under the needle and play with the main-jet size.

With the burning of oil, testing compression is a waste of time.. Motor has to come down and since you are planing on boring, you've killed one maln source for oil consumption. The other is main one is valve seals.. You could also be blowing it out the head breathers to the ground or into the motor. Typically if into the motor, the air cleaner dribbles.

When doing the rebuild find someone that can check / clean up the heads.. Porting can help if in the budget. To get best performance out of your upgrade, you need to find out the cam you have and set the compression ratio best for it.. When done, you want about 190 cranking compression for a nice conservative build.

You should check if there is an non stock ignition. If ignition is stock, go to an aftermarket. I prefer Daytona Twin Tech..

 

good advise,,,,,,
m

 

Bore to 98"
Andrews 26 or 37's.
Stage I or Stage II Heads.
DTT as Bruce has mentioned.
More than likely a 45 pilot, and a 180-185 main, needle in c/postion.
Ride, and smile.
Scott

 

My buddy has a set of 96" jugs he would practically give to me. I understand 96 and 88 have same bore but 96 has the longer stroke? Would I be able to get his jugs and punch those out? I'd like to get all the parts or most of the parts needed to do the build before I tear the bike down.

 

96" cylinders are the same.yes you can use them

 

Those 96" cylinders will work on your 88".
Not the pistons though.
Scott