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| 1978 50hp throttle not wide open |
| Author |
Message |
    
Daniel
New member
Username: dde428
Post Number: 3
Registered: 10-2009
| | Posted on Monday, October 26, 2009 - 08:17 pm: | 
|
ive got a 1978 50 hp thunderbolt 3 cylinder and runs/idles great but when the throttle is fully engaged in forward and fast idle is off im barely making 10mph. it goes faster in reverse! didnt know if there was a throttle linkage sticking somewhere or what. any help would be appreciated thanks |
JB
Senior Member
Username: beckerjs
Post Number: 2027
Registered: 11-2005
| | Posted on Monday, October 26, 2009 - 08:54 pm: |
|
this usually is something other than a linkage problem. With the engine off, you can open the throttle till it stops and look down the carbs, they should be wide open or very close to it. I would guess you need to check compression, spark on all cyls and then remove and clean the carbs if its not to late |
Fastjeff
Senior Member
Username: fastjeff
Post Number: 7019
Registered: 09-2003
| | Posted on Tuesday, October 27, 2009 - 06:38 am: |
|
And if the carbs aren't fully open, you can adjust the stop to make them. Note carefully which one to diddle with.
Jeff |
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