A
ARCHIVE_vin
Guest
Big Bore Upgrade
Hi Everyone,
just letting people know what I am planning to do to release more ponies from my 87 1K.
General outline is following a job done by ZLRX (respect!).
I have sourced ZZR1100 barrels and pistons,ZZR cylinder head - which I am taking camshafts and valve springs from (head won't work -its for downdraught carbs).
I am waiting for a lead to supply a GPZ11E - water cooled cylinder head (which is the same as a ZRX11).
When this arrives, I should be able to open up the crankcase bores to accomodate the larger diameter barrels.
Then switch cams and valve springs over.
Any thoughts on this mod?
Have been told 130bhp is probable outcome - sounds good to me !
Vin
Hi Everyone,
just letting people know what I am planning to do to release more ponies from my 87 1K.
General outline is following a job done by ZLRX (respect!).
I have sourced ZZR1100 barrels and pistons,ZZR cylinder head - which I am taking camshafts and valve springs from (head won't work -its for downdraught carbs).
I am waiting for a lead to supply a GPZ11E - water cooled cylinder head (which is the same as a ZRX11).
When this arrives, I should be able to open up the crankcase bores to accomodate the larger diameter barrels.
Then switch cams and valve springs over.
Any thoughts on this mod?
Have been told 130bhp is probable outcome - sounds good to me !
Vin

and she's 3 years older than me. Had to laugh when she used to complain that it didn't seem to go very far on a tankfull of petrol
Just read this thread. I found it interesting. I started out on the back of a 60s Honda Dream 305. My oldest brother bought me a Rupp mini bike when I was 8. I got my first street legal bike when I was 13. I rode it on & off road from the start. I took my motorcycle endorsement at age 16. I put over 12,000 miles on it then bought a 1979 Yamaha DT 175 & logged over 22,000 miles on it. In the same amount of time I trail rode & raced a 1976 YZ 125 & a 1979 PE 175. I also rode my Brother-In-Laws 1977 Yamaha 650 & 1980s KZ 900. After moving to FL in 1985 I bought a 1983 Honda 650 Nighthawk & logged over 83,000 miles on it. I also rode on the street & raced my 1982 KTM 504. I also raced & trail rode with my 1982 YZ 250. After hanging up racing in the early 90s I bought a 1981 Yamaha DT 400 & restored it. I rode it for 5 years then sold it for way more than I had in it. Then in 1999 I bought a Suzuki DR 200. Now I ride my sons bikes. He has a 2012 Suzuki DRZ 400 & a KTM 150 Cross Country. I also still trail ride the Suzuki DRZ 150 that he used to Pit Bike Race with. I also trail ride with my 2002 Yamaha 350 Sport Quad. I also have a Yamaha 350 Grizzly 4 x 4 Quad that I use for hunting & trail riding. I bought my ZL 1000 in 2010 with 8,800 miles on & ride it every week. My next machine will be a CanAm Spyder.
Rode that for two years and traded up to a Suzuki VStrom 650 while she was on vacation without me.
I have clocked about 40K so far between the two bikes and last year took the VStrom for a 5K trip including the badlands, black hills of SD, Beartooth, Yellowstone, Lolo pass and Glacier ( 