Hello all,I have recently acquired a Mariner 6hp from 1996 which I bought along with a small sailing boat earlier this year. I have seen the motor run and know that it has only run for about 100 hours (laid up for a number of years).Here comes the problem! I can't get the thing started!I have checked the sparks, both plugs OK. I have stripped down the carb, no signs of any varnish or gumming up. Fuel is getting to the carb, no blockages anywhere in the system that I can see.The choke primer appears to work fine.Before my arm falls off, can any of you knowledgable souls help me out with any suggestions?In anticipation......
how old is the fuel ? have you tried a light amount of starting fluid ? also you said the plugs looked fine, BUT have you put a spark tester to the motor yet ?
the fuel is probably quite old, actually it's over 12 months old. hmmmm perhaps I should get myself to the fuel station!I've not actually tried starting fluid - I have heard that it can damage the motor. Is this true?
Please don't use the starting fluid.I should put it in ALL caps,but I try not to raise my voice here.12 Months is pushing the age of the fuel a bit,but when you say the choke primer appears okay,how do you know ?If it is electric choke,have you tried using manual choke ?DHP
It is a manual choke. When the knob is pulled, a small diaphram is pressed which squirts extra fuel into the carb. I have checked this diaphram and there are no rips / tears in it.I will not use starting fluid.
Only other thought I have at the moment.... when you pull the choke knob out,and the plunger goes down,does the link back to the timer base advance?I don't have the specs,but it should be increasing the timing,to give you a faster idle when choking.DHP
yes on a 2 stroke starting fluid should not be used if you dont know what you are doing, but if you are careful with it it can work and be a big help. use it carefully and it can help, only problem is people misuse it, thats why it has a bad rapi work at j&r marine as a mechanic, and i firmly believe it can help when used right
jeff15svt, I enjoyed your post,and also use lots of chemicals in boat repair.But somewhere I missed info on the starting fluid,and want to know more. How do you guys apply it ?DHP
One thing I don't understand about starting fluid is this: motors are designed to be started from cold without the use of ether or any other additive. If the motor won't start, then there is something wrong somewhere. Surely the use of starting fluid will just hide that fault. In which case, if I start using it I will have to continue using it.I don't think I'm prepared to do this on an engine with so few hours on it. I need to find the reason why the engine isn't able to start and solve that.Giles