Honda Spree and Elite 50 Forums

Anyone have any ideas on how to rethread carb to intake safely? On a spree , I have 3 different carbs and all have 1 or both bolt holes stripped, cant get air tight seal between carb and intake,having trouble getting it to run, found this as the only obvious problem, any help appreciated. Thanks, Mick

Moparmick wrote:Anyone have any ideas on how to rethread carb to intake safely? On a spree , I have 3 different carbs and all have 1 or both bolt holes stripped, cant get air tight seal between carb and intake,having trouble getting it to run, found this as the only obvious problem, any help appreciated. Thanks, Mick

Heilcoil or nuts on the back side of the carb. Then again, new carb.

Helicoil, Timesert or other repair is a good repair, but may cost a bit if the owner has to buy the set.

On the Spree, if threads on the bystarter side are stripped, a 'jam nut' is an easy fix, but requires care with bolt length. The bolt must not come in contact with the bystarter side housing. Add washers or grind as required.

-- Hazard --
When the bolt hits the housing, it can/will distort the bore the bystarter air valve (outer brass collar) has a close slide fit with. Distortion of the carb body freezes up the bystarter .

-- Alternate low cost repair --
Some have drillled/tapped for 1/4 x 20 threads.

-- Pics of jam nut repair -- A screwdriver will hold the nut if a thin 10mm wrench is not handy.

in my expierence the heli coil is really hard to use on the carb because the thread holes arent deep enough the nut works the best..

tap it out to a m7 and get new bolts

paulpauly7 wrote:tap it out to a m7 and get new bolts

you risk cracking the carb and then you will have to get a new one

ive done lots i suppose if your a meathead and cant use a tap correctly then i suppose that would be a problem

paulpauly7 wrote:ive done lots i suppose if your a meathead and cant use a tap correctly then i suppose that would be a problem

is m7 jus next size up?

yes the stock bolts are m6

paulpauly7 wrote:yes the stock bolts are m6

so wouldnt that require drilling up for the m7 too fit?

just stick to your bolts

jam nut works well but number 7 drill bit and 1/4-20 tap works to.... m7 isnt to common in the states but should work

fastplastic wrote:jam nut works well but number 7 drill bit and 1/4-20 tap works to.... m7 isnt to common in the states but should work

good too know i might do this myself someday

Moparmick wrote:Anyone have any ideas on how to rethread carb to intake safely? On a spree , I have 3 different carbs and all have 1 or both bolt holes stripped, cant get air tight seal between carb and intake,having trouble getting it to run, found this as the only obvious problem, any help appreciated. Thanks, Mick

I got a m6 (stock bolt size) helicoil kit from autozone for $28. you just need a drill and a 1/4" drill bit. or send the carbs to me for $2 a hole + shipping