I am in the process of rebuilding / renovating a 1971 TS250R.
On removing the carburetor, I have noticed that the spacer to cylinder head inlet is out of alignment by about 3mm. The spacer lines up with the carburetor OK.
I can't imagine that manufacturing tolerances when drilling/tapping the cylider head would be so poor to allow so much missalignment. Some 25mm into the cylinder head/barrel inlet there is the auto-lube injector, I'm thinking that the missalignment is there to induce some turbulence in the inlet and help in mixing the two stroke oil / petrol vapour.
Is there anybody out there with some knowledge of this? Have I got a problem that needs solving? Or is this how it should be?
All input will be greatfully received.
TS250R carburetor- inlet manifold alignment.
Moderators: oldjapanesebikes, H2RICK, diamondj, Suzsmokeyallan
-
- Still in the Driveway
- Posts: 2
- Joined: Sat Jun 23, 2012 6:54 am
- Country: GB
- Suzuki 2-Strokes: TS250R
- H2RICK
- AMA Superbike
- Posts: 1659
- Joined: Sun Oct 19, 2008 11:07 am
- Country: CANADA
- Suzuki 2-Strokes: GT550A, GSF1200SK6 currently
- Location: Cowtown aka Calgary, Canada
Re: TS250R carburetor- inlet manifold alignment.
Frodo, those old engines weren't exactly "poster children" for modern manufacturing and/or tuning techniques. They did clean up their methods/designs later on, though.
If there is no evidence of bodgery by PO's, I'd leave it alone and ride it the way it is.
If there is no evidence of bodgery by PO's, I'd leave it alone and ride it the way it is.
GT550A Mint & Original
H2A Semi-Hot Rod Built From A Basket Case
KZ650C2 Mint & Original...mostly
GSF1200SK6 Bandit...My LD Ride
Additional H2 projects In Boxes.....
MBD Sufferer
H2A Semi-Hot Rod Built From A Basket Case
KZ650C2 Mint & Original...mostly
GSF1200SK6 Bandit...My LD Ride
Additional H2 projects In Boxes.....
MBD Sufferer