honda cd175 running her in ..Will I get her to do 85 mph 

Thanks I've had 89mph out ..just put fresh piston in and thinner Cooper head gasket

Me too

Also when I eventually seized it up I had it re bored to 190, then it would do 85 no problem

What lesson

I have few ideas which il.be doing over the winter months .I welcome any ideas etc please

if you're not really that concerned about fuel economy and more on just giving it more performance get Dual Flat Slide Carbs probably 22mm each but you'll have to fabricate a manifold with 2 separate intakes or 2 separate intake manifold for 1 each carb or just Turbocharge / Supercharge it on stock manifolds and carby but don't forget to upgrade your clutch.. better clutch material and stiffer clutch springs as stiff as it go! with an extra 3-5hp it would just slip on standard clutch sure it would ruin the clutch assembly after a while but you're not slipping at all would also recommend a Programmable CDI Upgrade.. it would be a massive job.. a lot of machining and tuning to do but it's worth it. Ignition Timing Adjustments just like that it's a whole lot less of a headache than messing about with its mechanical ignition advancing mechanism

Lol.luckly I didn't fall.off

Lots of blue smoke following you. Likely needs piston rings and has low compression making bike difficult to start. How fast did you go?

Hi mate .the bikes had new pistons etc ..it does 75mph on the flat .I've ported and polish it and change jetting etc ..but it been getting harder and harder to start ..so took apart and the cylinder has small hairline crack near top..so Am.looking for barrels but if not il.replace the cylinder liners ...am.trying to her to do 100mph ...she's fast 85mph downhill.thanks ..any help.is much appreciated

​@@Boris7Racing the only way a cd175 noddy will do the ton is if you throw it off a cliff

Sorry late reply she did 84mph ..then cam.locked up ..just done full rebuild again bigger piston .camshaft .copper head gasket etc she fast now

Actually your right I was running her in but should off put better gear on

Hi mate it's on standard size ...il.look later ..can't remember ... What size would u recommend

New rebore waiting on parts ..it blow up not long after

dropped out of an airplane