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Author Topic:   engine cut out
nevada posted 10-14-2002 12:05 PM ET (US)   Profile for nevada   Send Email to nevada  
I finnaly got my "new" 1979 Mntauk with an 1979 80 hp merc. it runs rell up to 3/4 throttle. When I stab it past 3/4 she stalls. Any comments or suggestions?
Bigshot posted 10-14-2002 01:21 PM ET (US)     Profile for Bigshot  Send Email to Bigshot     
I would say fuel related issue. Easy way to check is run with cowling off and arm yourself with a spraybottle full of pre-mix gas. When you are at the 3/4 mark and try and go faster try squeezing the fuel line bulb. If that does nothing, try spraying some gas in the carbs. If it are getting enough gas and it is electrical. If it picks up(even briefly) it is fuel related.
Landlocked posted 10-14-2002 02:08 PM ET (US)     Profile for Landlocked  Send Email to Landlocked     
I never heard of that B.S. but sounds like it would work great. I'd stay out of the line of fire in case it flashes back though!


Bigshot posted 10-14-2002 02:13 PM ET (US)     Profile for Bigshot  Send Email to Bigshot     
Basically if it ios starving for fuel and you squirt it in...she'll nolonger be starving. If it is getting fuel it will bog like you added the choke. Yes....I would not keep my nose up to the carb even though I have never had one backfire.
nevada posted 10-14-2002 03:56 PM ET (US)     Profile for nevada  Send Email to nevada     
I'm sorry I neglected to mention that she runs up to full throttle with no problems in nutral.
nevada posted 10-14-2002 03:58 PM ET (US)     Profile for nevada  Send Email to nevada     
Bigshot posted 10-14-2002 04:20 PM ET (US)     Profile for Bigshot  Send Email to Bigshot     
Well there is no load on it. Keep doing that and you won't have to worry about the engine much longer. NEVER rev an engine in neutral above 3k. Actually keep it under 2k.
nevada posted 10-14-2002 05:00 PM ET (US)     Profile for nevada  Send Email to nevada     
Big Shot,
Thanks for the tip, and the advise. I appreciate your advise and what this forum has to offer even for the a first time boat owner like myself. I'm glad I chose a Whaler.
Clark Roberts posted 10-14-2002 05:38 PM ET (US)     Profile for Clark Roberts  Send Email to Clark Roberts     
Another thing to check is the timing linkage. If out of whack you may not be getting enough advance! A good "link and sync" on carbs and timing is like chicken soup... can't hurt! Go for it! Good luck.. Clark.. SCN
counterstrike posted 10-16-2002 02:54 PM ET (US)     Profile for counterstrike    
Don't forget to tighten up loose clothing and hair before you run without the cowel.

Clark sounds like he has the right idea.
Check all the basics first and dont look for the most common problem found on everybody else's OB.

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