complete engine kits?

[ricoc]

looking to do rebuild

pistons
bearings
seals

This is to be installed in a mod bike. Thinking big cams and higher compression. Already have Hindle pipe. I'ld like to be close to my ZXR power wise. Shouldn't be too hard. 120hp 80tq. Anyone see complete kits out there?

[Snow]

I don't know where to get bearings and *all* of the seals, but Vesrah makes complete gasket kits (available through Dennis Kirk) and Wiseco makes two top end kits including aluminum forged pistons, rings, graphite head gasket, wrist pins, wrist pin clips which can be had for under $400 including shipping from Pro-Flo in Florida.

[pgg]

If you're thinking of high lift cams, and you don't want to modify all the top end components, then the motor will only take a smallish amount of extra lift before nasty things start to happen,such as shims flipping up on their edges, valve springs cracking, and pistons colliding with valves. A milder camgrind with wiseco pistons and flowed head will start to get that motor "snarling" though. Smaller mods like jetting, airflow, hot coils etc all add to the effect.

[ricoc]

Thanks for the reply

Currently I am running with pods, the Hindle with very low restiction can, larger jets (can't remember size) The engine in the bike is a little tired right now and the way my bike is set up I need the kick to start. I have a blown motor and another tired one. By tired I mean that they burn some oil and sound quite loose (Rattles and has a knock at hiway speeds) By blown I mean it was ran out of oil and broke a crank. I need to steal the kick mech out of the blown one and install in the better motor. Since I need to tear them down for that why not go the little extra. Figured it would be easier to get parts sooner than later (couple years)

By shims flipping on their sides do you imply that when the valve springs weaken they will not react fast enough for a high lift cam? When I operate I will putty the piston to check clearances etc. I like the 10.25:1 Wiseco that should be good to go with hi-test and tuning of course. Did I read correctly the 78E cams are more high rev than the 81's? Longer duration?

[sixtysix]

I think WEB cams makes a couple of modified cams for the XS, do a search, it was just on here a couple of weeks ago.

[pgg]

The longer lobes on high lift cams put more force on the edge of the shim. You can probably increase the lift from .345 up to around .400 safely, but even then the valve stems may need their tips ground down, and stronger aftermarket valve springs might be required as well. A good camshop would show you some options.

Cam buckets with small shims beneath, like some kawasakis have, (and others?) can handle a high lift cam better. Can be modified. I know some kawasaki buckets are the same diameter as the xs11. I've got some cam spec sheets for my 78e and 80sg cams, and you're right, the 78e do have a bit more duration. 78e is .241 and 80sg is .229. (@0.50). The 80sg exhaust cam lift is .345 whereas the 78e exhaust lift is .325. Both inlet lifts are the same at .345.

I've run both in a hotted up xs, and the 80sg cams are better in my opinion. More low down grunt. The 78e cams in a hotted up motor go off like there's no tommorrow though! They hit really hard from about 5500 revs. Both of my 78e bikes ran "fluffy" below 3000 revs.

When I workout how to send pictures, I'll show how they ported and flowed my cylinder head for more performance.

[xssiveone]

Re: complete engine kits?

Originally posted by ricoc
looking to do rebuild

pistons
bearings
seals

I purchased both crank seals and the seal where the middle gear box mounts, as well as all crank and rod big end bearings from these people a year or 2 back. Zanotti Motors I got new wrist pin keepers from them as well. Email John and mention the XS11 group. That and an email order will get you(used to anyway) a discount of some form.

I sourced the seals for the kickstart and gear selector locally. I could have also purchased the other seals in the correct size locally, but the stock ones have a flange around the outside that fits into a groove in the engine cases. The ones I could get locally didn't have the flange. Of course, one of the original crank seals is no longer available from Yamaha, and the replacement doesn't have the flange either.. Go figure!! Needless to say, the ones sourced locally were much cheaper.

[strom]

I got my crank bearings from a yamaha dealer... also crank oil seals, middle drive oil seal....
Had the main gasket made, the rest I cut out myself.

LP

[ricoc]

Thanks all

[pgg]

If you're serious about sticking with that xs11 for "the long haul" and the bottom end sounds pretty sloppy, then a machinist can touch up the crankshaft journals and place bearing inserts to fit. Conrods the same. A new camchain and hyvo chain wouldnt go amiss either. You'd strip everything yourself to keep costs low. All depends on whether you think an xs1100 is worth it. Over there in the states it might not be. Here in NZ, xs11's are rare as hens teeth, and rebuilding is the good option.

[Bikeboy]

about the money

so what kind of money are we looking at, for all this work. the guy at merriam cycle quoted me a price of around $2000. to put a big bore kit in, rework the head, new cam chain, dyno jet kit,top end gasket set and accel coil set. think these price's are in line, and has any of you guys had any work done by these people.

[sixtysix]

Merriam cycle is top notch as far as I know. If I wanted an XS 'done right' and had the $$, I would go there first.