Sorry to hear about engine problems still. I use MB marine based at Ocean Quay in Southampton. They will come out but not sure how far. Very knowledgeable about Yamaha.
Hi Warren,
I mess around with engines a bit but not quite got to grips with the F50 yet.
I have a receipt at home from the previous guy when he got the engine recommissioned might help you with diagnosis I'll dig it out tomorrow. (Fuel supply side if I recall).
I am glad that it is not only me who has experienced these issues.
1st launch, in a crowded marina, I was solo, fired the engine up, reversed off the trailer then put the gear stick into forward and the engine cut out. Tried again and again and the same thing happened, so with an oar and some crafty sailing, like using the hull as a sail, managed to get close to my pontoon where a nervous fellow owner was waiting to protect his boat by helping me berth. The manual, which I hadn't read, said to push the gear stick forward to about 20 degrees before it engages properly.
1st trip out the motor stopped just under Tower Bridge much to the annoyance of the river cruisers. I discovered I had forgotten to slacken the vent as I went to change tanks and told crew not to drop anchor. I fired up the engine and roared off to a load of abuse.
The winch strop split while prepping for the Round the Isle of Wight race, luckily outside a chandlers which had just enough left to sort me out.
Ist time i tried to put Sowenna back on her trailer, I gently chugged up to it, got half way on, winch strop didn't reach so reversed and charged towards the trailer and almost got fully on so jumped up and down and gave the engine full welly and got there in the end. It was then that I learned about the Mac shunt which is much safer.
Had just launched Sowenna after the winter lay-up and the engine would not start so called up the local marine engineer who came down and surprise, surprise I had not inserted the kill cord. Much egg on face.
Our website is a mine of information and an entertaining one at that.
My RYA instructor said to 'know your boat' was one of the most important things to learn and to do that you have to get 'out' and try things but in a safe environment.
A big welcome to all our new members and a big thank you to the established ones whose font of knowledge makes knowing your boat so much easier.
Hope o se as many of you as possible at the BigMac. Roly has kindly offered me a berth as well as John Pompei. I hope we shall be enjoying ourselves too much to have a non quorate committee meeting on the side.
Some while ago had mega problems with a previous Mac 26 x Yammy 50. It would not start or run. Whilst these engines properly looked after and stored indoors absolutely hate the wide range summer /winter variations in temperature eg plus 30 to minus 10-20 in winter. So if you can get your boat indoors for the winter it pays dividends , the carbs with their plastic feed pipes etc crack and leak, it is not easy to diagnose I had to pay hundreds of pounds to a Yammy dealer and took weeks to fix. As spares had to come from Japan.
Thank you again for all the help, just giving an update as on the water yesterday and today and everything seems fine. Got a mechanic to look at the engine and he got it to start pretty easily (always the way!), it smoked a lot for a few minutes and he thought that the problem was that preservative had been sprayed into the cylinders in preparation for storage and that needed to burn off. He said it's always hard first start after preservative and thought the preservative coating combined with a being flooded would have been the problem I had. However, just pleased to find out nothing wrong with the engine!
Fitted a new winch strap, so all is well and loving it out on the water in this weather!
They seem to suffer UV degradation, and I discovered only the other day that mine had nearly ripped through at the hook. These straps are always far longer than we need, and only the end couple of feet had degraded. I thought of cutting it back and re-stitching it, but I don't have access to a suitable sewing machine.
So I completely folded it double. I cut off the degraded bit and cut out the hook. I then completely unwound the winch, pulled the strap through the hook until the hook was half-way along, and tucked the free end under the anchored end as I rewound the winch. This provided enough turns to securely lock the free end in place, so now the strap is doubled up (double the strength, theoretically?), and less fabric distortion where it goes through the hook, which should make it less likely to tear.
Saved paying for another strap too!
—
Rick Jones (Treasurer), former 26X & 19 owner, Isle of Wight
Sorry to hear about engine problems still. I use MB marine based at Ocean Quay in Southampton. They will come out but not sure how far. Very knowledgeable about Yamaha.
Hi Warren,
I mess around with engines a bit but not quite got to grips with the F50 yet.
I have a receipt at home from the previous guy when he got the engine recommissioned might help you with diagnosis I'll dig it out tomorrow. (Fuel supply side if I recall).
Btw I am in Grateley so I guess not far away..
I am glad that it is not only me who has experienced these issues.
1st launch, in a crowded marina, I was solo, fired the engine up, reversed off the trailer then put the gear stick into forward and the engine cut out. Tried again and again and the same thing happened, so with an oar and some crafty sailing, like using the hull as a sail, managed to get close to my pontoon where a nervous fellow owner was waiting to protect his boat by helping me berth. The manual, which I hadn't read, said to push the gear stick forward to about 20 degrees before it engages properly.
1st trip out the motor stopped just under Tower Bridge much to the annoyance of the river cruisers. I discovered I had forgotten to slacken the vent as I went to change tanks and told crew not to drop anchor. I fired up the engine and roared off to a load of abuse.
The winch strop split while prepping for the Round the Isle of Wight race, luckily outside a chandlers which had just enough left to sort me out.
Ist time i tried to put Sowenna back on her trailer, I gently chugged up to it, got half way on, winch strop didn't reach so reversed and charged towards the trailer and almost got fully on so jumped up and down and gave the engine full welly and got there in the end. It was then that I learned about the Mac shunt which is much safer.
Had just launched Sowenna after the winter lay-up and the engine would not start so called up the local marine engineer who came down and surprise, surprise I had not inserted the kill cord. Much egg on face.
Our website is a mine of information and an entertaining one at that.
My RYA instructor said to 'know your boat' was one of the most important things to learn and to do that you have to get 'out' and try things but in a safe environment.
A big welcome to all our new members and a big thank you to the established ones whose font of knowledge makes knowing your boat so much easier.
Hope o se as many of you as possible at the BigMac. Roly has kindly offered me a berth as well as John Pompei. I hope we shall be enjoying ourselves too much to have a non quorate committee meeting on the side.
Keep well, keep safe
Simon Armitage.
Some while ago had mega problems with a previous Mac 26 x Yammy 50. It would not start or run. Whilst these engines properly looked after and stored indoors absolutely hate the wide range summer /winter variations in temperature eg plus 30 to minus 10-20 in winter. So if you can get your boat indoors for the winter it pays dividends , the carbs with their plastic feed pipes etc crack and leak, it is not easy to diagnose I had to pay hundreds of pounds to a Yammy dealer and took weeks to fix. As spares had to come from Japan.
Hi All,
Thank you again for all the help, just giving an update as on the water yesterday and today and everything seems fine. Got a mechanic to look at the engine and he got it to start pretty easily (always the way!), it smoked a lot for a few minutes and he thought that the problem was that preservative had been sprayed into the cylinders in preparation for storage and that needed to burn off. He said it's always hard first start after preservative and thought the preservative coating combined with a being flooded would have been the problem I had. However, just pleased to find out nothing wrong with the engine!
Fitted a new winch strap, so all is well and loving it out on the water in this weather!
Thanks again all.
Warren
Another thought on winch straps.
They seem to suffer UV degradation, and I discovered only the other day that mine had nearly ripped through at the hook. These straps are always far longer than we need, and only the end couple of feet had degraded. I thought of cutting it back and re-stitching it, but I don't have access to a suitable sewing machine.
So I completely folded it double. I cut off the degraded bit and cut out the hook. I then completely unwound the winch, pulled the strap through the hook until the hook was half-way along, and tucked the free end under the anchored end as I rewound the winch. This provided enough turns to securely lock the free end in place, so now the strap is doubled up (double the strength, theoretically?), and less fabric distortion where it goes through the hook, which should make it less likely to tear.
Saved paying for another strap too!
Rick Jones (Treasurer), former 26X & 19 owner, Isle of Wight
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