From: none@none.com99
On 6/21/2025 12:25 PM, Snag wrote:
> On 6/21/2025 1:17 PM, Leon Fisk wrote:
>> On Sat, 21 Jun 2025 12:51:01 -0500
>> Snag wrote:
>>
>>
>>> I thought it was fuel starvation , but that wasn't it . No power ,
>>> governor surge , and it dies under load . Choke on/off makes no
>>> difference and I've done a spray solvent vacuum leak check . I've
>>> thoroughly cleaned the fuel tank and replaced the carb and all fuel
>>> lines . This is a Viper 196cc OHV engine , and I have put a lot of hours
>>> on it in the last 9 or 10 years . Might just be worn out ...
>>
>> Had a nearly new Weed-Whacker with similar symptoms. It would start and
>> kinda run. Hit the throttle and it would die out. Also die out if you
>> let it idle for several seconds...
>>
>> Mud wasps had built a nest in the exhaust pipe/muffler almost
>> completely blocking it off. I didn't notice in your trouble shooting
>> anything about the exhaust...
>>
>
> No , you didn't ... a bit late now since I've fitted the drive
> coupler to a larger crankshaft but I will check that . If I can figure
> it out I'll keep this motor for a replacement for the tiller . The new
> motor was originally intended for the tiller , but it recovered from
> it's problem and has been running fine .
My dad once spent a year fighting with one of the two 4 cylinder Chevy
engines in a Searay sport fisher. He finally broke down the exhaust
system and found a wide thin wedge of rust about 75% obstructing the
exhaust.
I never think of checking the exhaust either. 19 out of 20 times when I
have small engine troubles its air box or carburetor. Usually plugged.
Sometimes float stuck. The 20th time its usually down to being
completely worn out.
Rarely is a spark plug bad, but I have had bad coils or coils that were
to far from the flywheel.
--
Bob La Londe
CNC Molds N Stuff
--
This email has been checked for viruses by AVG antivirus software.
www.avg.com
--- SoupGate-Win32 v1.05
* Origin: you cannot sedate... all the things you hate (1:229/2)
|
