1969-70 115 Rude Have to spry gas in carbs to start

[imported_mudboy68]

Hello all great site with lots of good info.

I have a 1969/70 115 Rude on a 16ft tri hull bow rider the thing runs great once you have it started does about 30-35 MPH on the water @ wot.
The issue is starting I have an built in Tank I prime the ball till hard full choke Crank over for about 10-15 secs squeeze ball again crank again can do this till the battary dies. Not even a hit. I open the chokes give 3 or 4 squirts of fuel mix from a squirt bottle in each carb close the choke plates hit the ket and about 4 turns it kicks give another squirt or 2 close hit the key with full choke and vavoom she fires right up set to half choke for 15 or 20 secs then no choke and it will run fine after even after its warmed up I have to choke it to start but does start right away.

What I've tried so far:

Replaced fuel lines
new prime bulb
Cleaned Fuel filter
Remove dissassembled, cleaned and reassyembled carbs.
Re torqued carbs ( just to be sure )
Removed feed line to carbs rolled engin over 1/2 dosen times got almost a liter of fuel.
New plugs
Check Spark (nice hot blue)

This motor runs great out on the lake idles nice once is running It's just getting the dam thing started It's like it's not getting enough fuel on cold start but the fuel pump kicks out lots.

Can a stuck or saturated float cause this problem.

I am looking for Ideas and opinions

Thanks
Mud

 

[pvcmsc]

Re: 1969-70 115 Rude Have to spry gas in carbs to start

Are you really, really sure the choke vein(s) close completely? Is it electric choke?

 

[imported_mudboy68]

Re: 1969-70 115 Rude Have to spry gas in carbs to start

yep it is electric but it also has manual I have readjusted the veins on both carbs just to be sure and no change I stumped at this point I would think that continually cranking I would smell gas or see gas comming out of the carbs but nope. Is there a bypass on the carbs to relive excess pressure that could be stuck ?? Look in the seloc manual I have but no mention of any.

 

[tashasdaddy]

Re: 1969-70 115 Rude Have to spry gas in carbs to start

have you checked compression. getting spark on all 4 during starting. are the plugs wet or dry during starting,

 

[imported_mudboy68]

Re: 1969-70 115 Rude Have to spry gas in carbs to start

dry during start good hot blue spark on all 4

comression rages from 97 - 100 psi on all 4

and yes siberian huskys do rule

 

[tashasdaddy]

Re: 1969-70 115 Rude Have to spry gas in carbs to start

your compression is getting in the low range. probably why it's hard to start. suggest a decarb, will get the crud out of the engine, and has been known to bring up the compression afterwards. seafoam Deep Creep and the seafoam fuel additive is the same stuff, you can put the fuel additive in a spray bottle and spray it into the carbs, till it almost stalls the engine, also in the cylinders. here's a link to explain more. we had a 69 115 when is was a teen, thats my interest. we went thru 3 power packs in 10 years.

http://forums.iboats.com/bbBoard.cgi?a=viewthread;fid=36;gtid=1035563

 

[tashasdaddy]

Re: 1969-70 115 Rude Have to spry gas in carbs to start

here's some more reading. it's good stuff

http://forums.iboats.com/bbBoard.cgi?a=viewthread;fid=17;gtid=1267827

 

[imported_mudboy68]

Re: 1969-70 115 Rude Have to spry gas in carbs to start

I bought this on on a 16ft trihull bowrider on a tralier for 600.00 CND was told the motor was pooched as someone ran gass with no oil throught it and the marina said it was done.

I took all the pieces checked the cylinders found that # 3 had a little scoring in the bottom but not that bad took some 400 wet paper 5w30 and duralube and cleaned it up new head gasket and wow 100 PSI compression threw some new plugs in it a new battary set up the linc n synch hit the key and away she went ran all last summer with no issues except the hard starting and that seemed to start after I had to replace the throttal cable but I've rechecked the link and sink after that and seems ok.

If I have to run another season with a spray bottle no big loss here it's already paid for itself in family enjoyment but I would like to try and fix it for this year.

I'll try the decarb once the temp up here is above zero and I can tank the motor

thanks

Mud