I'm stumped

[rightstuff]

honda varadeo 125 starts easily revs up to red line light no problem on the road up to about 45mph perfect try to go above that it's as flat as a witches tit it will just keep cutting back if you feather throttle it will get to top speed eventually had cabs off cleaned out new fuel lines plugs balanced carbs all seem fine any suggestions of where to go next

[iangaryprice]

It sounds like fueling problem, running weak on wide throttle openings.

Check for air leaks, the rubber carb to cylinder head connector can perish and let air in.

Have you missed any air hoses off when refitting the carb? Are they all connected correctly.

Check the fuel from the tap is flowing freely. If its a vacuum controlled tap, try running the bike with it set to prime.

Has it got an air filter? Is it clean?

Does the bike mhavea ny engine mods? It yes it may need different jets in the carb.

[rightstuff]

engine is all bog standard as is the exhaust am going to do air filter in morning but doubt that's the problem as it seems pretty clean to me

[rennie]

Inlet rubber(s) cracked?

[fastbob]

Find out which cylinder is running cold , change the plug and check the HT lead .

[Tiggie]

[mention]fastbob[/mention] Could well be The same thing happened to my Intruder on occasion and went exactly as the OP described

[rightstuff]

changing the air filter in a minute will g8ve it a run then check the plugs colour while I've got the filter off will check rubbers

[onesea]

Find out which cylinder is running cold , change the plug and check the HT lead .

 

I find an easy way to do this is spray some water on the down pipes, if one cylinder is not firing as well as other the water doesn't evaporate as quick..

[fastbob]

Find out which cylinder is running cold , change the plug and check the HT lead .

 

I find an easy way to do this is spray some water on the down pipes, if one cylinder is not firing as well as other the water doesn't evaporate as quick..

 

Or spit on a finger and compare the sizzle or lack thereof .

[rightstuff]

changed the filter boxed it up took out for a spin seems slightly better but not perfect both cylinders seem to be the same temperature the blisters on my fingers are the same size plugs look slightly rich but both the same going to to do a compression test next bikes only done 2500 miles but has been standing

[fastbob]

changed the filter boxed it up took out for a spin seems slightly better but not perfect both cylinders seem to be the same temperature the blisters on my fingers are the same size plugs look slightly rich but both the same going to to do a compression test next bikes only done 2500 miles but has been standing

Ah , stuck rings maybe ?

[rightstuff]

could well be fastbob can't do a test as my compression tester does not go down to the soppy little size bikes use got to get a adaptor thanks for aĺl your suggestions