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[edit]: Contessa Suddenly "Bogs" - Help

Posted: Thu Feb 04, 2016 3:30 pm
by Justinmarldizah
So had these bore for almost 4 months 72cc contessa I was going to work full throttling, suddently bogs and only ran with little throttle, If i full throttle makes a boggy sound and shuts off. Only way i could run it is with the choke up.

Re: Help

Posted: Thu Feb 04, 2016 3:38 pm
by MrJumps
Airleak, check for ripped seals, leaks, and oil plug, carb boot rips. Look around exhaust for oil leaking from exhaust.

Re: Help

Posted: Thu Feb 04, 2016 5:46 pm
by Meloshameless
Maybe something clogged main jet. Dodo gas.

Re: Help

Posted: Thu Feb 04, 2016 6:11 pm
by Justinmarldizah
Had leaked on exhuast hole, and carb has mynah leak on the sides

Re: Help

Posted: Thu Feb 04, 2016 6:14 pm
by Justinmarldizah
And had rip spigget

Re: Help

Posted: Thu Feb 04, 2016 7:39 pm
by Meloshameless
Step 0 -obtain $200
then continue steps 1-6

Re: Help

Posted: Thu Feb 04, 2016 7:41 pm
by MrJumps
Just hondabond it all and paint over it... like new :2thumbs:

Lol jk buy a new boot, new muffler gasket, and a carb rebuild kit, clean the carb good, then clean it up and watch for leaks.

Re: Help

Posted: Fri Feb 05, 2016 4:10 am
by veedubh20
sound like pilot jet little to big.
look at the spark plug












I love jog over dio... :lol:

Re: Help

Posted: Fri Feb 05, 2016 10:56 am
by benji
I think the ct mani might be it, if you have one. I sanded the mating surfaces, made new gaskets, and bonded it all together. W. New boot it should be brand new, no need for a $500 shopping list.

Although, a 28mm might be too big if you do have one. But I think 24mm is too, especially w a power jet carb. I'd go 21mm.

Re: Help

Posted: Fri Feb 05, 2016 11:02 am
by TinyElvis
It sounds like a air leak to me. Boot most likely. I've had a a few go on me in the past.
I ran a Corsa/PGlong/28OKO for 2 years solid, no problems (Fast too). Bulletproof!
Then I started running in the canyons and I overheat'd the sum'o'bich!

Re: [edit]: Contessa Suddenly "Bogs" - Help

Posted: Fri Feb 05, 2016 12:39 pm
by Wheelman-111
Greetings:

You will get more attention AND decrease the time wasted by Forum members who cannot contribute if you give your thread a more descriptive title. The sudden change in performance can easily be explained by a crack forming in some rubber inlet. If it ran well before, fix the leak(s) and it should run the same as it did. As to the pilot jet or other tuning suggestions: None of these things should change Suddenly. If fixing engine's accessories do not correct the issue, consider a compression check. Maybe try that first, since it's easy.

Re: [edit]: Contessa Suddenly "Bogs" - Help

Posted: Fri Feb 05, 2016 5:58 pm
by benji
"Forum members who cannot contribute "?

Re: [edit]: Contessa Suddenly "Bogs" - Help

Posted: Fri Feb 05, 2016 6:13 pm
by MrJumps
Did you get it running yet or figured out what is wrong exaclt and by hole in exhaust do you mean the gasket is cuprit or that it literly has a hole in it?

Re: [edit]: Contessa Suddenly "Bogs" - Help

Posted: Fri Feb 05, 2016 6:19 pm
by Justinmarldizah
Figured it out thanks

Re: [edit]: Contessa Suddenly "Bogs" - Help

Posted: Fri Feb 05, 2016 6:25 pm
by Wheelman-111
Greetings:

Benji axt:
"Forum members who cannot contribute "?
Ooh, ouch, got me. That sounded harsh. I meant that by itself the word "Help" will evoke in many a feeling of sympathy and a desire to assist. But if the issue isn't more defined, guys that run Gyros and Sprees and who know little about leaks in an aftermarket intake pipe will waste time opening the thread. Everyone here can contribute, but if I know nothing about LC conversions or fork swaps for example, (and I don't) I will know to pass if the "Help" request is defined up front to be about such an issue.