The Hodaka Club Forum

Quibbling just a teensy bit . . . but it looks to me like the window in the piston has been enlarged.
Ed

Bronco,

Just noticed you are in North Carolina. I am in Virginia and may not be too far from you. Grew up in NC just east of Raleigh.

Danny Cooke

Hey ED,

Bullfrog wrote:Quibbling just a teensy bit . . . but it looks to me like the window in the piston has been enlarged.
Ed

Piston came out of an engine that was restored for one of our forum members. You know I have seen factory combat wombat pistons in three versions. One with very narrow width, this one and last wider but narrower and piston pin relocated to the side. I think this one just looks bigger because of the angle / magnification.

Danny Cooke

hey danny i live just east of raleigh in knightdale nc it would be nice to be in contact with other hodaka folks close by
i grew up riding super rat and ace and for some reason sold them all off as got older with wife kids ect
but i could never forget that old 1970 rat i had.i just bought this wombat last week after giving up finding a rat
i could afford but i didnt know it was a slap together ,but i think i can make a rider out of it just didnt want to spend
alot right now. i think i will try to run it as is for now and keep close eye on plug to make sure its not running lean

hey danny i live just east of raleigh in knightdale nc it would be nice to be in contact with other hodaka folks close by
i grew up riding super rat and ace and for some reason sold them all off as got older with wife kids ect
but i could never forget that old 1970 rat i had.i just bought this wombat last week after giving up finding a rat
i could afford but i didnt know it was a slap together ,but i think i can make a rider out of it just didnt want to spend
alot right now. i think i will try to run it as is for now and keep close eye on plug to make sure its not running lean

I had an unfinished modified cylinder laying on the bench if this helps in the conversation.

Hmmm, what started to be an easy snapshot turned into a photographic challenge! Don't try this at home!

Max

Bronco70,
Checked your location on the map and I am headed that way this weekend to visit my mom in Benson. You are not to far away for me to detour a bit and assist. What do you think?

Danny Cooke

Roger that Danny. I could easily be off base on my memory of the window in the CW piston.
Ed

Bronco70. Take Danny up on his offer to help. ANY help he gives you will be worth it's weight in gold! Danny still rebuilds Hodaka motors for Vintage Racers and is a valuable asset to have I n your corner! Let him run away with your motor and go pick it up from him with your checkbook in hand when he says it's done! You won't regret it! He has helped me emensely over the past 2.5 years & really knows what he's doing with these Hodaka motors! Victor

would love to have you danny i should be around
my address is 4304 clifton rd knightdale
i should be around most of the day saturday
my cell is 919 868 7538

Hot dang! Bronco - you are about to have some really expert, direct, hands-on, inspection and advice! Danny knows his stuff!!
Ed

Bronco,

Looks like a little side trip is in the works. I will give you a call later.

Danny Cooke

YEAY! Go Danny! Go Danny! Go Danny! Victor

thanks danny
i thought this was going to an easy cleanup and get her running
but i got an ebay surprize instead


jeff whitford
919 868 7538

JEFF. Don't worry about it too much. And with Danny's help, you can turn this motor into a real screamer! I'm sure he will give you "options!" Go with the best one for you! Danny has never misguided me on any of the 4 restos I've been doing! Victor

him seems to be great guy and he is going to advise me on whats best for my build
im glad to be back in the hodaka family again

big thanks out to danny for taking out of his time to come over and look over my motor and give me instructions on what to do
his knowledge is pricless

Danny is a great friend and knowledgeable Hodaka builder! I wish I didnt live 1600 miles away from him! Just listen & do and Danny will get you there! It sure is wonderful that there are still people in this world like Danny! Victor

I will be putting this back together as soon as parts arive
The 26 mm carb had 130 main jet may have drilled after looking at it closer so I ordered a180 jet which is jet called for on 03 reeded wombat
If doesnt seem rich enough I will go to 190

And always remember: REED CAREFULLY

ok bike is back together and running did run it to much since im concearned about being lean
carb had 130 jet i went to 180 and it still doesnt seem rich on top end
needke clip was at top moved it to middle but still runs same
think i should go to 190 or 200 main jet ? please give some advise here

What kind of cylinder did this end up being, a reed conversion CW, a stock CW without reed modifications? Fill in the blanks for best results.

Bronco - the operating rule is that you MUST "find" rich, then start making adjustments toward "lean". Stop at the setting which just gets rid of the "richness" (one step leaner than rich). I can't tell you what you need - too many variables - you have to find it by trial and (hopefully, not too much) error.

Olddog - it has been established to be a Combat Wombat cylinder with very basic mods for reed valve. Though I don't think it has been established whether or not there are extra holes drilled in the piston. (One of the variables regarding proper jetting.)
Ed
PS: Bronco, do you have access to, and have you read, the proper procedures for tuning the Mikuni round slide carburetor? The very FIRST step is proper pilot circuit tuning.

Bronc70's combat wombat was previously owned by Harlen Diem. Cylinder was bored to .080 over with a two ring Wiseco piston. A slot had been cut in the piston to match the victory port. Piston, rings and bore where in excellent condition. If I remember correctly, holes were drilled in the cylinder to connect the intake tract with the victory port. An 03 Wombat reed assembly and carb was attached. For simplicity sake the 4 holes for the reed valve are not going to be drilled at this time.

As Ed stated, just to many things changed and will have to "find rich" and go from there. I did review carb tuning with Bronco70. Spoke with him today and he indicated the air screw was turned out 1 1/2 turn. With this setting he could turn the air screw in or out and the engine would loose rpms....sounds like pilot circuit is close.

Danny

thanks guys i will order some jets this week and report the outcome when i get parts and time to try
think i wil jump right to 200 but get few sizes maybe 240 largest and 190 smallest