throttle cable adjustment
Discussion
How you doing Justin?
Picked her up last weekend, but didn't tempt fate by going on the Northants run!
Basically a top and bottom end rebuild, except finger follower and cams which were ok! will post exact details in my profile, when i get time.
Throttle adjustment tips:
Erratic idle - one of the tiny springs on the 'throttle bridge' the bit that links all the butterfly valves had drifted from its seat. easy fix and you can see them if you remove the top of the air box. just don’t let it 'spring' away into the engine bay you'll never find it again!
Excess cable at pedal in foot well - remove the top and bottom of the air box to get to the bottom bolt where the throttle cable outer meets the bracket attached to the engine, adjust accordingly. then do fine adjustment where the inner meets the 'bridge' mechanism by rotating the yoke.
result - sweet idling engine
hope this helps someone
cheers
custard
Picked her up last weekend, but didn't tempt fate by going on the Northants run!
Basically a top and bottom end rebuild, except finger follower and cams which were ok! will post exact details in my profile, when i get time.
Throttle adjustment tips:
Erratic idle - one of the tiny springs on the 'throttle bridge' the bit that links all the butterfly valves had drifted from its seat. easy fix and you can see them if you remove the top of the air box. just don’t let it 'spring' away into the engine bay you'll never find it again!
Excess cable at pedal in foot well - remove the top and bottom of the air box to get to the bottom bolt where the throttle cable outer meets the bracket attached to the engine, adjust accordingly. then do fine adjustment where the inner meets the 'bridge' mechanism by rotating the yoke.
result - sweet idling engine
hope this helps someone
cheers
custard
I think it was running away as the small spring (see above)wasn't forcing three of the throttle butterflies to return when you come off the gas, the air flow passed the butterflies must have been enough to keep them open.
when it stuck i took it out of gear, and i guess the engine revved until it hit the limiter or the characteristics of air flow (must read that fluid dynamics book
)past the butterflies changed allowing them to close, not sure which it happened very quickly.
wouldn't fancy braking from high speed with the ignition off and no brake servo, would rather lunch the engine!
i guess the moral is to keep an eye on those ickle springs!
Custard
when it stuck i took it out of gear, and i guess the engine revved until it hit the limiter or the characteristics of air flow (must read that fluid dynamics book
)past the butterflies changed allowing them to close, not sure which it happened very quickly. wouldn't fancy braking from high speed with the ignition off and no brake servo, would rather lunch the engine!
i guess the moral is to keep an eye on those ickle springs!
Custard
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