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Sunday Games - Week 8

I didn’t see Dionte on the Panthers stat sheet today. Makes me wonder if the fire sale in Carolina is going on. Traded to the Chiefs by Tuesday?
 
What size motor & 4-stroke or 2-stroke?



Salute the nation
Yamaha 2 stroke 15 on a 10 foot RIB with a small racor, REC90, new fuel hose, old bulb, new plugs and clean carb. Both plugs are getting spark. (Ask me how I know). Fuel filter is clear.

I can idle along all day but half the time I can't plane. Motor bogs down but doesn't stall. Typically get out of the hole quickly and hit 19 knots if I'm alone with 3 gallons of fuel. I weigh 210. Motor weighs about 75 and the RIB about 250

Likely a fuel issue and possibly an intermittent coil issue. I'm going to test resistance on the coils tomorrow and put in a new 9.259P prop.

I smell like fuel & watched maybe 5 minutes of the clowns game. Great Sunday!
 
Was eating lunch at Primantis today and what a joyous jubilation from everyone when the Browns beat the Ravens
 
Yamaha 2 stroke 15 on a 10 foot RIB with a small racor, REC90, new fuel hose, old bulb, new plugs and clean carb. Both plugs are getting spark. (Ask me how I know). Fuel filter is clear.

I can idle along all day but half the time I can't plane. Motor bogs down but doesn't stall. Typically get out of the hole quickly and hit 19 knots if I'm alone with 3 gallons of fuel. I weigh 210. Motor weighs about 75 and the RIB about 250

Likely a fuel issue and possibly an intermittent coil issue. I'm going to test resistance on the coils tomorrow and put in a new 9.259P prop.

I smell like fuel & watched maybe 5 minutes of the clowns game. Great Sunday!
Any luck squeezing the primer bulb when it bogs down? If it's collapsed, you have a vent issue. If it helps, check the fuel pump.

You can't beat a Yamaha outboard. I used to work on them all the time and 9 times out of ten it was due to non use.

Since you have new fuel line you might go ahead and replace the primer bulb, at least then you know it's good to go. I've also seen where the fuel lines between the fuel filter, pump and carb collapsed.

I'd also check the fuel pump diaphragms. If they are old, it wouldn't hurt to go ahead and replace them anyway.

If you didn't remove the jets, I'd highly recommend it. I have seen jets that look clear but they essentially had arteriosclerosis. The fuel deposits simply accumulated over time and I actually had to take a wire and ream it out. Carb cleaner wouldn't touch it. Afterwards the fuel flow was back to normal and ran like the proverbial scalded dog.

Good luck!
 
Any luck squeezing the primer bulb when it bogs down? If it's collapsed, you have a vent issue. If it helps, check the fuel pump.

You can't beat a Yamaha outboard. I used to work on them all the time and 9 times out of ten it was due to non use.

Since you have new fuel line you might go ahead and replace the primer bulb, at least then you know it's good to go. I've also seen where the fuel lines between the fuel filter, pump and carb collapsed.

I'd also check the fuel pump diaphragms. If they are old, it wouldn't hurt to go ahead and replace them anyway.

If you didn't remove the jets, I'd highly recommend it. I have seen jets that look clear but they essentially had arteriosclerosis. The fuel deposits simply accumulated over time and I actually had to take a wire and ream it out. Carb cleaner wouldn't touch it. Afterwards the fuel flow was back to normal and ran like the proverbial scalded dog.

Good luck!
Bulb is harder than a redneck at a family reunion.

Jets were clear but I didn't ream them out. Diaphragm was in good shape but I'll order new one and some fuel line for carb & filter. I use her every day, that's all I do when I'm not working. Can't go wrong on the water.
 
It’s pouring for the game in Seattle. Tom Brady’s Pulitzer Prize winning commentary…..there’s a close up picture of a wet football. He zero’s in on a spot on the football and tells the audience how wet the ball is and how as a nfl QB he always asked them to towel off the football. And then says the same thing after a couple plays. Absolutely Brilliant. Good Lord🙄

With as much experience as he has, are you sure he wasn’t checking on inflation ???


Salute the nation
 
Yamaha 2 stroke 15 on a 10 foot RIB with a small racor, REC90, new fuel hose, old bulb, new plugs and clean carb. Both plugs are getting spark. (Ask me how I know). Fuel filter is clear.

I can idle along all day but half the time I can't plane. Motor bogs down but doesn't stall. Typically get out of the hole quickly and hit 19 knots if I'm alone with 3 gallons of fuel. I weigh 210. Motor weighs about 75 and the RIB about 250

Likely a fuel issue and possibly an intermittent coil issue. I'm going to test resistance on the coils tomorrow and put in a new 9.259P prop.

I smell like fuel & watched maybe 5 minutes of the clowns game. Great Sunday!


Sounds like you are on the right track, coils could easily be bad on top-end. I’m no mechanic, but I had a 7hp 4stroke give me problems and that was the culprit.

Good luck and let me know the outcome if you can remember to.


Salute the nation
 
Bulb is harder than a redneck at a family reunion.

Jets were clear but I didn't ream them out. Diaphragm was in good shape but I'll order new one and some fuel line for carb & filter. I use her every day, that's all I do when I'm not working. Can't go wrong on the water.
Compression is ok when hot?

Did this issue suddenly crop up?

FWIW, I had something similar on my 200 HP Optimax. It ran great at idle and would come out of the hole no problem but bog down soon after.

I was thinking one of the injectors was starting to fail or I had a coil breaking down. I initially was thinking it was something more complex because I knew the fuel line and bulb were only a couple years old but I didn't install it. I paid someone to do it because I didn't have time to do it myself.

I went ahead and replaced the fuel line and bulb and that was it. Whoever installed it didn't route it correctly and eventually it caved in where there was a bend thus restricting the fuel and caused it to bog down. I know you mentioned the fuel line is new but before digging too deep make sure you cover the basics first. I'd replace the bulb before the fuel pump. Who knows maybe the check valve in it is fubar.

I did have a project boat about 10 years ago with a 225 HP Yamaha 2 stroke. It had sat for years so that was a no brainer, all new lines, inside and out, cleaned the carbs, new fuel pumps, new external test tank. That felt great hearing that engine come back to life.
 
Sounds like you are on the right track, coils could easily be bad on top-end. I’m no mechanic, but I had a 7hp 4stroke give me problems and that was the culprit.

Good luck and let me know the outcome if you can remember to.


Salute the nation
Thanks, I'll let you know what happens this week. Tomorrow will remove lower unit and replace water pump also. Then back to the fuel issue.
 
Damn...that is 65 yards in the air to win it

**** the bears


Washington's QB seems to be a really grounded guy. Seems to have a really even keel. That's a great quality in a leader. Hard to believe he's a rookie
 
Compression is ok when hot?

Did this issue suddenly crop up?

FWIW, I had something similar on my 200 HP Optimax. It ran great at idle and would come out of the hole no problem but bog down soon after.

I was thinking one of the injectors was starting to fail or I had a coil breaking down. I initially was thinking it was something more complex because I knew the fuel line and bulb were only a couple years old but I didn't install it. I paid someone to do it because I didn't have time to do it myself.

I went ahead and replaced the fuel line and bulb and that was it. Whoever installed it didn't route it correctly and eventually it caved in where there was a bend thus restricting the fuel and caused it to bog down. I know you mentioned the fuel line is new but before digging too deep make sure you cover the basics first. I'd replace the bulb before the fuel pump. Who knows maybe the check valve in it is fubar.

I did have a project boat about 10 years ago with a 225 HP Yamaha 2 stroke. It had sat for years so that was a no brainer, all new lines, inside and out, cleaned the carbs, new fuel pumps, new external test tank. That felt great hearing that engine come back to life.
I didn't bother checking compression because she runs great half the time. I think you're right about the fuel line and the bulb. So I'm going to rebuild the fuel pump and replace the water pump and replace the bulb. I love these Yamaha two-strokes but can't buy them in the US anymore. Bahamas is nearest place to me
 
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Washington's QB seems to be a really grounded guy. Seems to have a really even keel. That's a great quality in a leader. Hard to believe he's a rookie
He is crushing it. They've been bad for 40 years and finally have a winning team again. Tenekenr John Riggins
 
Any luck squeezing the primer bulb when it bogs down? If it's collapsed, you have a vent issue. If it helps, check the fuel pump.

You can't beat a Yamaha outboard. I used to work on them all the time and 9 times out of ten it was due to non use.

Since you have new fuel line you might go ahead and replace the primer bulb, at least then you know it's good to go. I've also seen where the fuel lines between the fuel filter, pump and carb collapsed.

I'd also check the fuel pump diaphragms. If they are old, it wouldn't hurt to go ahead and replace them anyway.

If you didn't remove the jets, I'd highly recommend it. I have seen jets that look clear but they essentially had arteriosclerosis. The fuel deposits simply accumulated over time and I actually had to take a wire and ream it out. Carb cleaner wouldn't touch it. Afterwards the fuel flow was back to normal and ran like the proverbial scalded dog.

Good luck!
I had a Mercury 150 HP XR2 that gave me fits with bogging and loading up on fuel at idle and I finally figured out it was the fuel pump diaphragm with a pinhole or tear. Outboards can give you fits and then you're like "why didn't I think of that first?"

I've had that '87 XR2 V6 on a 2001 Larson 21 footer with a manual jackplate for the past 12 years and rarely any problems so I'm a big fan of those although I'm sure I'd love the Yamahas of any year. Mercs are just cold natured trying to start though lol.
 
I didn't bother checking compression because she runs great half the time. I think you're right about the fuel line and the bulb. So I'm going to rebuild the fuel pump and replace the water pump and replace the bulb. I love these Yamaha two-strokes but can't buy them in the US anymore. Bahamas is nearest place to me
They're practically bulletproof so long as they don't overheat or have oiling issues. Does yours have oil injection or do you premix? I still have a 1990 30 hp Suzuki on a 79 13' Whaler. That sob keeps going and going but I'm thinking about bypassing the oil injection and just premix. I'd hate to lose it at this point due to a failure of the oil pump, etc

If it does eventually have low compression, and assuming the L/U is ok, I'd pay to have it rebuilt before buying a new 4 stroke with all the electronics.
 
I had a Mercury 150 HP XR2 that gave me fits with bogging and loading up on fuel at idle and I finally figured out it was the fuel pump diaphragm with a pinhole or tear. Outboards can give you fits and then you're like "why didn't I think of that first?"

I've had that '87 XR2 V6 on a 2001 Larson 21 footer with a manual jackplate for the past 12 years and rarely any problems so I'm a big fan of those although I'm sure I'd love the Yamahas of any year. Mercs are just cold natured trying to start though lol.
When working on engines with fuel problems, it was always a relief to see a little tear in the diagram. Easy fix.
 
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