big bore and stroked

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Oct 7, 2005 | 10:56 AM

joe

Thread Starter

Cruiser

Joined: Sep 2005

Posts: 137

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From: NY

big bore and stroked

does anyone know of or has done a stroke or big bore kit that allows you to keep the reliability and driveability on a tour bike? i enjoy long rides and if my ride broke down or left me in the middle of nowhere i'd be pissed.My new mechanic was saying not to exceed 95 inches.any feedback ?

Oct 7, 2005 | 11:01 AM

CHEYENNE

Road Warrior

Joined: Aug 2005

Posts: 1,545

Likes: 5

From: NEW LENOX, IL

RE: big bore and stroked

That is what I have heard. With anything bigger I guess you need to crack the case which can cause more problems.

Oct 7, 2005 | 11:36 AM

LittleSkull

Intermediate

Joined: Jun 2005

Posts: 49

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From: Rome, Italy

RE: big bore and stroked

Don't exceed 95" cause you'll lose the comfort (many more vibrations) and overall reliability. If you want a good reliable set-up with some extra grunt here is what i would use (my example is for carburetor models):

SE air cleaner & breather kit #29440-99C or other high performance air cleaner
Mikuni HSR 42mm or SE 42mm Flatside # 29640-99
Big Bore cylinders #16549-99
Quik-Install pushrods #17997-99A
SE-203 cams #25937-99B
High compression pistons # 22661-99A
Then i would put your choice of ignition sytem & exhaust (i'm going with the S&S IST & S&S coil + S&S SPO mufflers with Vance and Hines dresser duals).

This set-up is as reliable as the original, but you'll feel that extra needed power.

Cheers,
Cris

Oct 7, 2005 | 05:38 PM

CaptnAl

Road Captain

Joined: Jul 2005

Posts: 615

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From: Melbourne FL

RE: big bore and stroked

or go with a jims 120 built from the start with big bore heavery cases ect ect. not much more vibration at idle and plenty of power/torque and smooth at any hiway speed.

Oct 7, 2005 | 06:56 PM

04RoadKing

Outstanding HDF Member

Joined: Aug 2005

Posts: 2,141

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From:

RE: big bore and stroked

Mine is a 04 RK with stock cylinders bored to 97" with Wiesco pistons, and HD Heads thats were sent to Bagley, Oregon for work that are capable of handling a 640 lift. Don't wast your time or money on the SE heads, you can send your stock ones someware for half the price. I have over 11000 miles on the build and it doesn't miss a beat. I was told that you could put up to a 99" piston without doing any bottom end work. But the JIMS 120" Does sound pretty sweet or maybe the S&S 124" I here there both very reliable.

Oct 7, 2005 | 08:34 PM

Bear64

Banned

Joined: Jul 2005

Posts: 2,543

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From:

RE: big bore and stroked

I have got just about what Littleskull suggested to you, except I kept the stock igintion. and flattop pistons, with screaming eagle mufflers on my 99 flht, I just did the 125,000 service to it, no problems so far. I ride the bike fast and hard, by that I mean I do not drag race or anything like that, but I do pound down 600-800 mile days at anything from 65 to 85 MPH with it. I do not baby it either, but I do change oil at 2500--3000 miles. I was also leary of doing it, but I indeed recomend it, in fact I'm going to do the same thing to a FXD as soon as I get it, then I will have 2 bikes like that.

Oh, and my gas milage is about 40 to 42 MPG when I ride normal at 70 MPH or below 3,000 RPM's on the tach. seems the cams come on about 3,000 to 3,200 RPM's. so all things considered I think you should go for it. good luck

Oct 8, 2005 | 08:31 AM

joe

Thread Starter

Cruiser

Joined: Sep 2005

Posts: 137

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From: NY

RE: big bore and stroked

thanks all i just went 10 over with 10:1 pistons and some head work and a screaming eagle cam, but it did need the rebuild because the opil pump went and some key or something like it from the pump and the metel was everywhere. the shop i found is north shore cycle and he is fair on the price but i do need alot.just sucks cause i drove home 40 miles when the gauge registered 0 oil pounds per sq and figured the sending unit crapped out,or the gauge lost power but the mech told me all gauges are on 1 fuse so i royaly goofed.