Ace 90 dirtbike build

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Dale
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Ace 90 dirtbike build

Post by Dale »

I was not going to build any new ones this winter but somehow this thing just showed up in my shop. I swear, these things are just like Jack rabbits!

What you see is everything that it came with. Let's see, there is an Ace90 motor in a box on the shelf. Label says it runs. An Ace 90 pipe is hanging from the rafters. Tank? Check. Guess I'm building an Ace 90 this winter. Just can't say no...

Clarence, Where would frame number A95xx put this for a build date?
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Came with a rare sprocket carrier to store the overlay sprocket. Cool!
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Dale
matt glascock
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Re: Next project? Ace 90

Post by matt glascock »

Groovie. Any particular direction with the build? Cool to see the stock bars.
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Dale
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Re: Next project? Ace 90

Post by Dale »

matt glascock wrote: Mon Nov 23, 2020 9:50 am Groovie. Any particular direction with the build? Cool to see the stock bars.
Goal will be another solid running dirt bike with grandchildren in mind. Last winters Ace100 dirt bike build was a big hit. Might as well have 2 of them.

The stock bars were a surprise especially since they are not bent. But... I hate them and have already removed them. I will keep them as a backup for my street legal Ace 90 and model 92 Ace 100.
Dale
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Dale
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Re: Next project? Ace 90

Post by Dale »

Good utilization of a little winter sunshine.

Destined to be a gloss black Ace 90 dirtbike.
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Dale
dirty_rat
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Location: Spring Hill, FL

Re: Next project? Ace 90

Post by dirty_rat »

Is that an attempt at a sissy bar on the back???
viclioce
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Re: Next project? Ace 90

Post by viclioce »

Dale. I have a 90 to do as well. Going to do the same thing! Clean it up & make a dirt bike out of it! I’ll start on it when I’m finished with the second Rat!

I’m going to send the handle bars off for re-chroming. Any recommendations, and what should I do with them prep wise before sending? Thx! :ugeek: Victor
Attachments
7B2CCC42-ABE6-4B35-B0C9-71D35CCE5F23.jpeg
102C1509-C7F3-4EAD-B668-C4B09BF6A2C8.jpeg
594E2D9B-548C-489A-B85E-9B2DD5C9B0D8.jpeg

1978 175SL
1976 03 Wombat
1975 99 Road Toad (2)
1973 96 Dirt Squirt (2)
1973 “Wombat Combat”
1973 Combat Wombat
1972 94 Wombat (2)
1972 Super Squirt
1971 92B+ Ace
1970 92B Ace 100B (2)
1968 92 Ace 100
1966 Ace 90
; D Victor
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Dale
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Re: Next project? Ace 90

Post by Dale »

dirty_rat wrote: Tue Jan 19, 2021 9:25 am Is that an attempt at a sissy bar on the back???
Not sure what you are seeing as a sissy bar, but that is Sissy working the sand paper with her brother... :D
Today they helped me break down the tires and wheels for a thorough cleaning.
Dale
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Dale
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Re: Next project? Ace 90

Post by Dale »

viclioce wrote: Tue Jan 19, 2021 9:42 am Dale. I have a 90 to do as well. Going to do the same thing! Clean it up & make a dirt bike out of it! I’ll start on it when I’m finished with the second Rat!

I’m going to send the handle bars off for re-chroming. Any recommendations, and what should I do with them prep wise before sending? Thx! :ugeek: Victor
Victor,
I have never had anything chromed or plated so can not advise on that. I am sure others here can help with that.
Dale
dirty_rat
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Re: Next project? Ace 90

Post by dirty_rat »

The photo of the rolling frame, the rear fender stay is sticking up above the rear rack. It looks almost like an old school chopper sissy bar.
Bruce Young
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Re: Next project? Ace 90

Post by Bruce Young »

Victor re-chroming bars and other items, no need to do anything that's part of the price. they will pre-chrome everything in chemical baths. Since you are going to do the bars look around and make sure there may not be anything else you might need to be re chromed, The chrome-rs might give a little disc. with more items to do. Just say in. Bruce
Bruce Young - HodakaPartsIdaho
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Dale
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Re: Ace 90 dirtbike build

Post by Dale »

Making progress. Needing warmer weather to finish painting and then ready for assembly. Finished the exhaust pipe this week. It is a flamethrower built from a 94 Wombat married to an Ace 100 B+ header. Flamethrowers are synonymous to Hodaka for me...
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Time to tackle the motor. This is a fairly early build with number P2026 out of 17380 built. It was an Ebay purchase a number of years back. Condition unknown.

Compression is good and leak down test was steller. Spark? Yes. Piston viewed from exhaust and intake looks new. I will be replacing the left crank seal with a fresh one and then run it as is. But... what the heck is this? Is this common on earlier builds? A rubber block insert in the partition between the magneto cavity and the countershaft cavity. Running behind this block is the magneto ground wire which is connected to the case within the countershaft cavity.
???
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Dale
taber hodaka
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Re: Ace 90 dirtbike build

Post by taber hodaka »

Dale those early 90 coils, were not the most reliable. Clarence
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Dale
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Re: Ace 90 dirtbike build

Post by Dale »

taber hodaka wrote: Wed Feb 10, 2021 8:28 am Dale those early 90 coils, were not the most reliable. Clarence
Thanks. I've wondered about that and thought I'd replace it with a coil mounted under the tank. I haven't researched it yet but guessing that you would need to replace this ignition coil with an exciting coil?
Dale
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Dale
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Re: Ace 90 dirtbike build

Post by Dale »

The finished project! The Ace 90 dirtbike is ready for some summer fun.

I installed the seat foam and cover today as the last step. The model 93 saddle with a flamethrower exhaust and high front fender make the perfect Hodaka to my eyes.

Many thanks to Terry Larson for producing the new foam and covers. No small deal! Not to mention a long list of miscellaneous bits and pieces also acquired from Hodaka-Parts.com. Thank you Terry!
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Dale
givergas
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Re: Ace 90 dirtbike build

Post by givergas »

very nicely done ,looks awesome
matt glascock
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Re: Ace 90 dirtbike build

Post by matt glascock »

What a cool bike. Nice Dale!
viclioce
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Re: Ace 90 dirtbike build

Post by viclioce »

Wow! You moved way ahead of me! I’m almost done. Got the motor in the frame and polished out the old cases after removing the paint which was in pretty bad shape.

Seat can back from the upholstery shop! Getting good spark from the original coil on the stator. Just had to trim the wire & add another plug cap to it!

I ordered all the parts I needed for the carb, except one. The W clip to lock the needle in place on the slide. Ordered it yesterday. Should ship tomorrow!

Tomorrow, I’ll install the OEM pipe because it cleaned up really nice. All that’s remaining is the tank. I may add some paint to the tank. Need to get some pin stripe tape to lay out the pattern. Then we will see how it goes! :ugeek: Victor
Attachments
89A17CBE-F636-49E2-800F-C0B14C9E7579.jpeg
B183C59B-2DB7-447C-8373-C4397C60F194.jpeg
9B25915D-50B4-44A4-A19B-AC4E058AFC28.jpeg

1978 175SL
1976 03 Wombat
1975 99 Road Toad (2)
1973 96 Dirt Squirt (2)
1973 “Wombat Combat”
1973 Combat Wombat
1972 94 Wombat (2)
1972 Super Squirt
1971 92B+ Ace
1970 92B Ace 100B (2)
1968 92 Ace 100
1966 Ace 90
; D Victor
matt glascock
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Re: Ace 90 dirtbike build

Post by matt glascock »

Really nice bike, Dale. Could you give a bit of detail on how you modified the pipe?
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Dale
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Re: Ace 90 dirtbike build

Post by Dale »

matt glascock wrote: Mon May 17, 2021 7:17 pm Really nice bike, Dale. Could you give a bit of detail on how you modified the pipe?
Thanks Matt!
This build was another low budget affair using the roller that was given to me and other parts that I had hanging in the rafters. Among those parts was a model 94 Flame thrower pipe that was in pretty good shape except for missing several inches that had been cut off at the exhaust nut.

The 125cc flame throwers are different from the 100cc version. The most obvious difference is the at the outlet of the pipe. The 125 is squared off and the spark arrestor sticks completely out of the pipe. The 100cc pipes are finished with an angle and the spark arrestor is partially shrouded by the pipe. The headers are also different with the 100cc being smaller in diameter and the bends are different. I was looking at fabricating a new header section when I recalled a friend talking about a pipe piece that he had. Turns out he had the complete header to a 100cc flame thrower! A parts trade was made.

I cut the complete header off of the pipe at the welded seam. It took some fiddling with the angles, but with some determination I settled on the angle (using duct tape of course!). I then marked up the pipe for alignment and took it to my local welder.
100 cc header section
100 cc header section
final fitment
final fitment
My wife takes better pictures than myself...
My wife takes better pictures than myself...
Dale
matt glascock
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Re: Ace 90 dirtbike build

Post by matt glascock »

Well how da ya like that! A bud who just happens to have a 100cc flame thrower header laying around? I'd say you hang with a cool crowd. Very clever pipe mod. It looks nicely tucked in at the knee level - maybe more effectively than stock. Very clever build. Inspires me to never EVER throw Hodie parts away. Thanks for sharing.
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